wqx/descriptions/AnalyticalMethod.json

Water Quality Exchange (WQX): JSON Schema

{
  "1": "",
  "3": "",
  "4": "",
  "5": "",
  "10": "",
  "11": "",
  "13": "",
  "15": "",
  "16": "",
  "17": "",
  "18": "",
  "20": "",
  "23": "",
  "25": "",
  "26": "",
  "29": "",
  "61": "",
  "101": "",
  "102": "",
  "103": "",
  "104": "",
  "105": "",
  "106": "",
  "107": "",
  "108": "",
  "111": "",
  "114": "",
  "115": "",
  "131": "131 ~ NOAA NST . Trace mercury in marine sediments by CVAA",
  "132": "132 ~ NOAA NST . Trace metals in marine sediment by neutron activation",
  "140": "140 ~ NOAA NST . Trace metals in marine sediment by GFAA",
  "151": "151 ~ NOAA NST . Trace metals in marine sediment by FAA",
  "160": "160 ~ NOAA NST . Trace metals in marine sediments by X-ray fluorescence",
  "172": "172 ~ NOAA NST . Trace metals in marine sediments by ICP/MS",
  "200": "",
  "202": "",
  "203": "",
  "305": "",
  "306": "",
  "307": "",
  "314": "314 ~ EPA-OGWDW/TSC . Perchlorate in Drinking Water by Ion Chromatography",
  "317": "317 ~ EPA-OGWDW/TSC . Oxyhalide DPBs and Bromide by IC",
  "326": "326 ~ EPA-OGWDW/TSC . Inorganic Oxyhalide Disinfection By-products in Drinking Water by Ion Chromatography with Postcolumn Reagent for Trace Bromate Analysis",
  "334": "334 ~ EPA-OGWDW/TSC . Residual Chlorine in Drinking Water Using an On-Line Chlorine Analyzer",
  "403": "Standard Methods (19th ed.) 403 (colorimetric, titration, manual) mg/L",
  "500": "",
  "504": "",
  "505": "505 ~ EPA-NERL . Pesticides and PCBs in Water GC-ECD",
  "506": "506 ~ EPA-NERL . Phthalate and Adipate Esters in Water by GCPID",
  "507": "507 ~ EPA-TSC/NERL . Pesticides in Water Using GCNPD",
  "508": "508 ~ EPA-TSC/NERL . Chlorinated Pesticides in Water Using GCECD",
  "509": "509 ~ EPA-NERL . Ethylene thiourea in water using GC with a N-P detector",
  "513": "",
  "521": "521 ~ EPA-NERL . Nitrosamines in water by SPE and GC/MS/MS",
  "522": "522 ~ EPA-NERL . 1,4-Dioxane in water by SPE and GC/MS with SIM",
  "526": "526 ~ EPA-OGWDW/TSC . SVOCs in Water by GCMS",
  "527": "527 ~ EPA-OGWDW/TSC . Pesticides and flame retardants in water by SPE and capillary column GC/MS",
  "528": "528 ~ EPA-NERL . Phenols in Water by GC/MS",
  "529": "529 ~ EPA-NERL . Explosives and Related Compounds in Water by SPE and Capillary Column GC/MS",
  "530": "http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=307048&simpleSearch=1&searchAll=530",
  "532": "532 ~ EPA-OGWDW/TSC . Phenylurea Compounds in Water by HPLCUV",
  "533": "https://www.epa.gov/dwanalyticalmethods/method-533-determination-and-polyfluoroalkyl-substances-drinking-water-isotope",
  "536": "https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P1005E35.TXT",
  "537": "537 ~ EPA-ORD / EPA-OST . Organic contaminants in drinking water by direct aqueous injection-liquid chromatography/tandem mass spectrometry",
  "538": "538 ~ EPA-ORD / EPA-OST . Organic contaminants in drinking water by direct aqueous injection-liquid chromatography/tandem mass spectrometry",
  "540": "http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=309413&simpleSearch=1&searchAll=method+540",
  "543": "https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100MD0C.txt",
  "544": "http://cfpub.epa.gov/si/si_public_record_report.cfm?dirEntryId=306953&simpleSearch=1&searchAll=544",
  "545": "https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100NGHH.txt",
  "546": "https://www.epa.gov/dwanalyticalmethods/method-546-determination-total-microcystins-and-nodularins-drinking-water-and",
  "547": "547 ~ EPA-NERL . Glyphosate in Water Using HPLC w/ Post Column Derivitization",
  "548": "",
  "549": "",
  "550": "550 ~ EPA-NERL . PAHs in Water Using HPLC/UV/FL",
  "551": "",
  "552": "",
  "554": "",
  "555": "555 ~ EPA-NERL . Chlorinated Acids in Water Using HPLC/UV",
  "556": "556 ~ EPA-TSC/NERL . Carbonyls by GC/ECD",
  "557": "557 ~ EPA-OGWDW/TSC . Haloacetic Acids, Bromate, and Dalapon in Drinking Water by IC-ESI-MS/MS",
  "600": "",
  "601": "601 ~ EPA-EAD . Purgeable Halocarbons via GC with Electrolytic conductivity (ELCD) or microcoulometric detector",
  "602": "602 ~ EPA-EAD . Purgeable Aromatics via GC with Photoionization Detector (PID)",
  "603": "603 ~ EPA-EAD . Acrolein and Acrylonitrile Purge and Trap via GC with Flame Ionization Detector (FID)",
  "604": "604 ~ EPA-EAD . Phenols in Water Using GCECD/FID",
  "605": "605 ~ EPA-EAD . Benzidenes in Water Using HPLC/ED",
  "606": "606 ~ EPA-EAD . Phthalate Esters in Water by GCECD",
  "607": "607 ~ EPA-EAD . Nitrosamines in wastewater",
  "608": "608 ~ EPA-EAD . Organochlorine Pesticides and PCBs via GC with Electron Capture Detector (ECD)",
  "609": "609 ~ EPA-EAD . Nitroaromatics and Isophorone via GC with Flame Ionization Detector (FID) and Electron Capture Detector (ECD)",
  "610": "610 ~ EPA-EAD . Polynuclear Aromatic Hydrocarbons by GC",
  "611": "611 ~ EPA-EAD . Haloethers in Water by GCELCD",
  "612": "612 ~ EPA-EAD . Chlorinated Hydrocarbons in Water by GCECD",
  "613": "613 ~ EPA-EAD . Qualitative confirmation and Quantification of 2,3,7,8-TCDD via GC/MS after a screen using Method 625",
  "614": "",
  "615": "",
  "616": "",
  "617": "",
  "618": "",
  "619": "",
  "620": "",
  "621": "",
  "622": "",
  "624": "624 ~ EPA-EAD . Purgeable Organic Compounds via GC/MS",
  "625": "625 ~ EPA-NERL . Base/Neutral and Acid Organics in Wastewater",
  "626": "",
  "627": "",
  "629": "",
  "630": "",
  "631": "",
  "632": "",
  "633": "",
  "634": "",
  "635": "",
  "636": "",
  "637": "",
  "638": "",
  "639": "",
  "640": "",
  "641": "",
  "642": "",
  "643": "",
  "644": "",
  "645": "",
  "646": "",
  "680": "",
  "901": "",
  "902": "",
  "906": "",
  "907": "",
  "1000": "",
  "1001": "",
  "1002": "",
  "1003": "",
  "1004": "",
  "1005": "",
  "1006": "",
  "1007": "",
  "1008": "",
  "1009": "",
  "1010": "https://www.epa.gov/hw-sw846/sw-846-test-method-1010a-test-methods-flash-point-pensky-martens-closed-cup-tester",
  "1011": "",
  "1012": "",
  "1013": "",
  "1014": "",
  "1015": "",
  "1016": "",
  "1017": "",
  "1018": "",
  "1019": "",
  "1020": "",
  "1022": "",
  "1024": "",
  "1104": "",
  "1300": "",
  "1301": "",
  "1400": "",
  "1401": "",
  "1402": "",
  "1403": "",
  "1404": "",
  "1450": "",
  "1451": "",
  "1452": "",
  "1453": "",
  "1454": "",
  "1457": "",
  "1458": "",
  "1459": "",
  "1500": "",
  "1501": "",
  "1550": "",
  "1551": "",
  "1600": "1600 ~ EPA-OW . Enterococci in water by membrane filtration using mEI Agar",
  "1601": "1601 ~ EPA-OW . Coliphage in water by two-step enrichment procedure",
  "1602": "",
  "1603": "",
  "1604": "",
  "1605": "1605 ~ EPA-OW . Aeromonas in Finished Water by Membrane Filtration",
  "1606": "",
  "1608": "",
  "1609": "with Internal Amplification Control (IAC) Assay",
  "1610": "",
  "1611": "",
  "1612": "",
  "1613": "1613 ~ EPA-EAD . Dioxins and Furans by HRGC/HRMS",
  "1614": "",
  "1615": "",
  "1616": "",
  "1617": "",
  "1618": "",
  "1619": "",
  "1620": "",
  "1621": "https://www.epa.gov/system/files/documents/2024-01/method-1621-for-web-posting.pdf",
  "1622": "1622 ~ EPA-MICRO . Cryptosporidium by filtration/IMS/FA microscopy",
  "1623": "1623 ~ EPA-MICRO . Cryptosporidium and giardia by filtration/IMS/FA microscopy",
  "1624": "1624 ~ EPA-EAD . Volatile Organic Compounds by GC/MS",
  "1625": "1625 ~ EPA-EAD . Semivolatiles - Base/Neutrals, Acid Extractable, GC/MS",
  "1628": "",
  "1630": "1630 ~ EPA-EAD . Methyl Mercury in Water",
  "1631": "1631 ~ EPA-EAD . Mercury in Water Using CVAFS",
  "1632": "1632 ~ EPA-EAD . Chemical Speciation of Arsenic in Water and Tissue",
  "1633": "1633 ~ EPA . https://www.epa.gov/system/files/documents/2021-09/method_1633_draft_aug-2021.pdf",
  "1636": "1636 ~ EPA-EAD . Hexavalent Chromium by Ion Chromatography",
  "1637": "1637 ~ EPA-EAD . Determination of Trace Elements in Ambient Waters by Chelation and GFAA",
  "1638": "1638 ~ EPA-EAD . Determination of Trace Elements in Ambient Waters by ICPMS",
  "1639": "1639 ~ EPA-EAD . Trace Elements in Water by GFAA",
  "1640": "1640 ~ EPA-EAD . Trace Elements in Ambient Waters by On-Line Chelation",
  "1642": "in Recreational Waters and Wastewater . Procedure to concentrate, detect and enumerate male-specific (F+) and somatic coliphages in recreational waters and advanced treatment wastewater",
  "1643": "in Secondary (No Disinfection) Wastewater. Procedure to detect and enumerate male-specific (F+) and somatic coliphages in secondary treatment wastewater. Errata to Methods 1609.1 and 1611.1",
  "1648": "",
  "1649": "",
  "1650": "",
  "1651": "",
  "1652": "",
  "1653": "1653 ~ EPA-EAD . Chlorinated Phenolics associated with the pulp and paper industry wastewater by GCMS",
  "1654": "",
  "1657": "",
  "1658": "",
  "1659": "",
  "1660": "",
  "1661": "",
  "1662": "",
  "1663": "",
  "1664": "1664 ~ EPA-EAD . Oil and Grease and Non-polar Material Using Solvent Extraction and Gravimetry",
  "1665": "",
  "1666": "",
  "1667": "",
  "1671": "",
  "1673": "1673 ~ EPA-EAD . PEG-600 by Derivatization and HPLC",
  "1682": "1682 ~ EPA-OW . Salmonella in Sewage Sludge (Biosolids) by MSRV Medium",
  "1693": "Procedure to concentrate, detect and enumerate Cryptosporidium and Giardia in disinfected wastewater",
  "1694": "1694 ~ EPA-OW/OST . Pharmaceuticals and personal care products in water, soil, sediment, and biosolids by HPLC/MS/MS",
  "1696": "TaqMan® Quantitative Polymerase Chain Reaction (qPCR). qPCR procedure for the measurement of human-associated gene sequences from Bacteroides isolated from environmental water samples.",
  "1697": "TaqMan® Quantitative Polymerase Chain Reaction (qPCR) Assay.  qPCR procedure for the measurement of human-associated gene sequences from Bacteroides-like microorganisms isolated from environmental water samples.",
  "1698": "1698 ~ EPA-OW/OST . Steroids and hormones in water, soil, sediment, and biosolids by HRGC/HRMS",
  "1699": "1699 ~ EPA-OW/OST . Pesticides in water, soil, sediment, biosolids, and tissue by HRGC/HRMS",
  "2000": "",
  "2002": "",
  "2003": "",
  "2004": "",
  "2005": "",
  "2007": "",
  "2008": "",
  "2010": "",
  "2011": "",
  "2012": "",
  "2013": "",
  "2014": "",
  "2015": "",
  "2130": "",
  "2150": "",
  "2170": "",
  "2310": "",
  "2320": "",
  "2500": "",
  "2501": "",
  "2504": "",
  "2505": "",
  "2506": "",
  "2507": "",
  "2508": "",
  "2510": "",
  "2513": "",
  "2514": "",
  "2515": "",
  "2516": "",
  "2517": "",
  "2518": "",
  "2519": "",
  "2521": "",
  "2522": "",
  "2523": "",
  "2524": "",
  "2526": "",
  "2527": "",
  "2528": "",
  "2529": "",
  "2530": "",
  "2532": "",
  "2533": "",
  "2534": "",
  "2535": "",
  "2536": "",
  "2537": "",
  "2538": "",
  "2539": "",
  "2540": "",
  "2541": "",
  "2542": "",
  "2543": "",
  "2544": "",
  "2545": "",
  "2546": "",
  "2550": "",
  "2580": "",
  "2810": "",
  "3040": "",
  "3120": "",
  "3125": "3125 ~ Standard Methods . Metals in Water by ICP/MS",
  "3130": "",
  "3500": "",
  "3503": "",
  "3505": "",
  "3506": "",
  "3507": "",
  "3508": "",
  "3509": "",
  "3510": "",
  "3511": "",
  "3512": "",
  "3513": "",
  "3514": "",
  "3515": "",
  "3516": "",
  "3518": "",
  "3570": "3570 ~ EPA-RCA . Organic Compounds from Solids by Microscale Solvent Extraction",
  "3571": "",
  "3700": "",
  "3701": "",
  "3702": "",
  "3810": "",
  "3820": "",
  "4000": "",
  "4102": "https://aem.asm.org/content/aem/68/8/4102.full.pdf  https://aem.asm.org/content/68/8/4102",
  "4670": "",
  "5000": "",
  "5001": "",
  "5002": "",
  "5003": "",
  "5004": "",
  "5005": "",
  "5006": "",
  "5007": "",
  "5008": "",
  "5009": "",
  "5010": "",
  "5011": "",
  "5012": "",
  "5013": "",
  "5014": "",
  "5016": "",
  "5017": "",
  "5018": "",
  "5019": "",
  "5020": "",
  "5021": "",
  "5022": "",
  "5025": "",
  "5026": "",
  "5027": "",
  "5029": "",
  "5030": "",
  "5031": "",
  "5032": "",
  "5033": "",
  "5034": "",
  "5035": "",
  "5036": "",
  "5037": "",
  "5038": "",
  "5039": "",
  "5041": "",
  "5100": "",
  "5110": "",
  "5502": "",
  "5503": "",
  "5504": "",
  "5506": "",
  "5508": "",
  "5509": "",
  "5510": "",
  "5512": "",
  "5514": "",
  "5515": "",
  "5516": "",
  "5517": "",
  "5518": "",
  "5519": "",
  "5521": "",
  "5600": "",
  "5700": "",
  "6001": "",
  "6002": "",
  "6004": "",
  "6005": "",
  "6006": "",
  "6007": "",
  "6008": "",
  "6009": "",
  "6010": "",
  "6011": "",
  "6012": "",
  "6013": "",
  "6014": "",
  "6015": "",
  "6020": "",
  "6402": "",
  "6600": "",
  "6601": "",
  "6602": "",
  "6603": "",
  "7010": "",
  "7013": "",
  "7020": "",
  "7024": "",
  "7027": "https://www.comm-tec.com/Docs/Brochure/Turner/ISO_7027_S-0132.pdf",
  "7029": "",
  "7030": "",
  "7040": "",
  "7041": "",
  "7048": "",
  "7056": "",
  "7062": "",
  "7063": "",
  "7081": "",
  "7082": "",
  "7090": "",
  "7091": "",
  "7102": "",
  "7105": "",
  "7130": "",
  "7140": "",
  "7190": "",
  "7191": "",
  "7195": "",
  "7197": "",
  "7198": "",
  "7199": "7199 ~ EPA-RCA . Chromium in Water by Ion Chromatography",
  "7200": "",
  "7201": "",
  "7210": "",
  "7211": "",
  "7300": "",
  "7380": "",
  "7381": "",
  "7400": "",
  "7401": "",
  "7402": "",
  "7420": "",
  "7421": "",
  "7430": "",
  "7450": "",
  "7460": "",
  "7461": "",
  "7472": "",
  "7473": "7473 ~ EPA-RCA . Mercury in Solids and Solutions by Thermal Decomposition and AA",
  "7480": "",
  "7481": "",
  "7500": "",
  "7501": "",
  "7502": "",
  "7504": "",
  "7505": "",
  "7506": "",
  "7520": "",
  "7521": "",
  "7550": "",
  "7580": "7580 ~ EPA-RCA . White Phosphorus in water, soil, and sediment by GC/NPD",
  "7600": "",
  "7601": "",
  "7602": "",
  "7603": "",
  "7604": "",
  "7610": "",
  "7740": "7740 ~ EPA-RCA . Selenium by GFAA",
  "7742": "",
  "7761": "",
  "7770": "",
  "7780": "",
  "7840": "",
  "7841": "",
  "7870": "",
  "7900": "",
  "7901": "",
  "7902": "",
  "7903": "",
  "7904": "",
  "7905": "",
  "7906": "",
  "7910": "",
  "7911": "",
  "7950": "",
  "7951": "",
  "8000": "",
  "8001": "",
  "8002": "",
  "8003": "",
  "8004": "",
  "8005": "",
  "8008": "",
  "8009": "",
  "8010": "8010 ~ Hach Co. . Acidity of Water by Buret Titration",
  "8011": "8011 ~ EPA-RCA . EDB and DBCP by Microextraction and Gas Chromatography",
  "8012": "8012 ~ Hach Co. . Aluminum in water by Aluminon Indicator",
  "8013": "",
  "8021": "",
  "8023": "",
  "8024": "",
  "8025": "",
  "8026": "https://www.hach.com/p-cuver-2-copper-reagent-accuvac-ampules-pk25/2504025",
  "8027": "",
  "8029": "",
  "8030": "",
  "8031": "8031 ~ EPA-RCA . Acrylonitrile in Water Using Gas Chromatography",
  "8032": "",
  "8033": "",
  "8034": "",
  "8037": "",
  "8038": "",
  "8039": "",
  "8041": "",
  "8043": "",
  "8047": "",
  "8048": "8048 ~ Hach Co. . Orthophosphate by Colorimetry",
  "8049": "",
  "8051": "",
  "8061": "",
  "8070": "",
  "8071": "",
  "8081": "",
  "8082": "",
  "8091": "",
  "8100": "8100 ~ EPA-RCA . Polynuclear Aromatic Hydrocarbons in Water and Solid Samples by GC-FID",
  "8110": "",
  "8111": "8111 ~ EPA-RCA . Haloethers in Water, Soil, and Waste Samples by Chromatography and Electron Capture Detection",
  "8112": "",
  "8113": "",
  "8116": "",
  "8121": "",
  "8131": "",
  "8140": "",
  "8141": "",
  "8146": "",
  "8149": "0.006 to 0.700 mg/L Mn (LR).  Scope and application: For water and wastewater. digestion is necessary for total manganese determinations. Adapted from Goto, K., et al., Talanta, 24, 652-3 (1977). https://www.hach.com/asset-get.download.jsa?id=7639983728",
  "8155": "http://www.hach.com/asset-get.download.jsa?id=7639982436",
  "8156": "8156 ~ Hach Co. . pH in Water",
  "8157": "",
  "8158": "",
  "8160": "",
  "8163": "",
  "8164": "",
  "8165": "",
  "8167": "",
  "8168": "",
  "8171": "",
  "8172": "",
  "8186": "",
  "8190": "",
  "8192": "For determination of Nitrate Nitrogen by the Cadmium Reduction method.",
  "8195": "",
  "8201": "8201 ~ Hach Co. . Acidity of Water",
  "8202": "8202 ~ Hach Co. . Phenolphthalein (Total) Acidity of Water",
  "8203": "8203 ~ Hach Co. . Alkalinity of Water By Digital Titration",
  "8207": "Chloride DOC316.53.01171 Silver Nitrate Method Method 8207 10 to 10,000 mg/L as Cl- Digital Titrator Scope and application: For water, wastewater and seawater. Test preparation. URL: https://www.hach.com/asset-get.download-en.jsa?code=56134",
  "8219": "8219 ~ Hach Co. . Acidity, Methyl Orange, of Water by Buret Titration",
  "8221": "8221 ~ Hach Co. . Alkalinity by Buret Titration",
  "8222": "",
  "8224": "",
  "8225": "",
  "8226": "8226 ~ Hach Co. . Total Hardness in Water",
  "8229": "8229 ~ Hach Co. . Dissolved Oxygen - Winkler Method",
  "8230": "",
  "8233": "",
  "8237": "",
  "8241": "",
  "8271": "",
  "8275": "",
  "8276": "",
  "8277": "",
  "8288": "8288 ~ Hach Co. . Acid/Base Milliequivalent Determination Using Sodium Hydroxide",
  "8289": "8289 ~ Hach Co. . Acid/Base Milliequivalent Determination Using Sulfuric Acid",
  "8290": "",
  "8300": "",
  "8301": "",
  "8302": "",
  "8303": "",
  "8305": "",
  "8306": "",
  "8308": "",
  "8310": "",
  "8311": "",
  "8315": "",
  "8316": "8316 ~ EPA-RCA . Acrylamide, Acrylonitrile, and Acrolein by HPLC",
  "8321": "",
  "8323": "",
  "8326": "0.006 to 0.250 mg/L Al3+.  Scope and application: For water.  Adapted from Standard Methods for the Examination of Water and Wastewater. https://www.hach.com/asset-get.download-en.jsa?id=7639983676",
  "8327": "https://www.epa.gov/hw-sw846/validated-test-method-8327-and-polyfluoroalkyl-substances-pfas-using-external-standard",
  "8332": "",
  "8334": "",
  "8368": "",
  "8375": "",
  "8430": "",
  "8440": "",
  "8506": "",
  "8507": "",
  "8515": "",
  "8520": "",
  "9000": "",
  "9002": "",
  "9012": "",
  "9013": "",
  "9014": "",
  "9016": "https://www.epa.gov/hw-sw846/validated-test-method-9016-free-cyanide-water-soils-and-solid-wastes-microdiffusion",
  "9021": "",
  "9022": "",
  "9023": "",
  "9031": "",
  "9034": "https://www.epa.gov/hw-sw846/sw-846-test-method-9034-titrimetric-procedure-acid-soluble-and-acid-insoluble-sulfides",
  "9035": "",
  "9036": "",
  "9038": "",
  "9050": "",
  "9056": "",
  "9057": "",
  "9060": "",
  "9065": "",
  "9066": "",
  "9067": "",
  "9070": "",
  "9075": "",
  "9076": "",
  "9078": "",
  "9079": "",
  "9080": "",
  "9081": "",
  "9131": "",
  "9132": "",
  "9200": "",
  "9210": "",
  "9211": "",
  "9212": "",
  "9213": "",
  "9214": "",
  "9215": "",
  "9223": "Standard Methods for the Examination of Water and Wastewater 18th Edition 1992. https://law.resource.org/pub/us/cfr/ibr/002/apha.method.9223.1992.pdf",
  "9250": "",
  "9251": "",
  "9253": "",
  "9310": "9310 ~ EPA-RCA . Gross Alpha and Beta Determination",
  "9315": "9315 ~ EPA-RCA . Alpha-emitting radium isotopes in water by Alpha Scintillation or AGPC",
  "9320": "9320 ~ EPA-RCA . Radium-228 in groundwater",
  "9562": "",
  "10001": "",
  "10002": "",
  "10018": "",
  "10019": "URL: http://http://www.hach.com/asset-get.download.jsa?id=7639983742",
  "10020": "",
  "10021": "",
  "10023": "",
  "10027": "",
  "10028": "",
  "10029": "Coliforms: Membrane Filtration (simultaneous detection) In: Hach Analytical Procedures. m-ColiBlue24 Broth Procedure for Membrane Filtration. Hach Product Literature #8433. Hach: Loveland, CO. Dec.",
  "10031": "",
  "10071": "",
  "10072": "",
  "10129": "",
  "10205": "",
  "10206": "",
  "10207": "",
  "10208": "",
  "10209": "",
  "10210": "",
  "10214": "",
  "10215": "",
  "10216": "",
  "10217": "",
  "10218": "",
  "10219": "",
  "10220": "",
  "10227": "",
  "10229": "",
  "10237": "http://www.hach.com/asset-get.download.jsa?id=7639982519",
  "10238": "",
  "10239": "",
  "10242": "http://www.hach.com/asset-get.download.jsa?id=17043310572",
  "10360": "This luminescence-based sensor procedure measures the light emission characteristics from a luminescence-based reaction that takes place at the sensor-water interface. A light emitting diode (LED) provides incident light required to excite the luminophore substrate. In the presence of dissolved oxygen the reaction is suppressed. The resulting dynamic lifetime of the excited luminophore is evaluated and equated to DO concentration.",
  "70606": "70606 ~ MWI . PAH in soils/sediment by immunoassay",
  "70620": "70620 ~ MWI . PAH in water by immunoassay",
  "70950": "70950 ~ MWI . Silvex (2,4,5-TP) in soils/sediment by immunoassay",
  "72920": "72920 ~ MWI . 2,4-D in Water by Immunoassay",
  "73100": "73100 ~ MWI . DDT in soils/sediment by immunoassay",
  "73110": "73110 ~ MWI . Chlordane (cyclodiene) in soils/sediment by immunoassay",
  "73300": "73300 ~ MWI . Chlordane (cyclodiene) in water by immunoassay",
  "73310": "73310 ~ MWI . Chlordane (cyclodiene) in water by immunoassay",
  "74200": "74200 ~ MWI . Toxaphene in soils/sediment by immunoassay",
  "75900": "75900 ~ MWI . Endosulfan in water by immunoassay",
  "76300": "76300 ~ MWI . Lindane in soils/sediment by immunoassay",
  "77000": "",
  "78900": "78900 ~ MWI . Picloram in water by Immunoassay",
  "481297": "",
  "481300": "",
  "500001": "500001 ~ Abraxis . Atrazine by Immunoassay, Magnetic Particle",
  "500007": "500007 ~ Abraxis . Atrazine by Immunoassay, High Sensitivity, Magnetic Particle",
  "500021": "500021 ~ Abraxis . Acetochlor by Immunoassay, Magnetic Particle",
  "500061": "500061 ~ Abraxis . Metolachlor by Immunoassay, Magnetic Particle",
  "500065": "500065 ~ Abraxis . Metolachlor by Immunoassay, Microtiter Plate",
  "500071": "500071 ~ Abraxis . Alachlor by Immunoassay, Magnetic Particle",
  "500076": "500076 ~ Abraxis . Alachlor by Immunoassay, Microtiter Plate",
  "500081": "500081 ~ Abraxis . Glyphosate by Immunoassay, Magnetic Particle",
  "500086": "500086 ~ Abraxis . Glyphosate by Immunoassay, Microtiter Plate",
  "500090": "500090 ~ Abraxis . PBDEs in water by Immunoassay, Magnetic Particle",
  "500201": "500201 ~ Abraxis . Pyrethroid by Immunoassay, Magnetic Particle",
  "500501": "500501 ~ Abraxis . Penoxsulam by Immunoassay, Magnetic Particle",
  "500511": "500511 ~ Abraxis . Fluridone by Immunoassay, Magnetic Particle",
  "515001": "515001 ~ Abraxis . Sulfmethazine by Immunoassay, Magnetic Particle",
  "515006": "515006 ~ Abraxis . Sulfamethazine by Immunoassay, Microtiter Plate",
  "515565": "515565 ~ Abraxis . Cotinine by Immunoassay, Microtiter Plate",
  "515575": "515575 ~ Abraxis . Caffeine by Immunoassay, Microtiter Plate",
  "515585": "515585 ~ Abraxis . Carbamazepine by Immunoassay, Microtiter Plate",
  "520001": "520001 ~ Abraxis . Diuron by Immunoassay, Microtiter Plate",
  "520005": "520005 ~ Abraxis . Atrazine by Immunoassay, Microtiter Plate",
  "520006": "520006 ~ Abraxis . Triazine Metabolite by Immunoassay, Microtiter Plate",
  "520011": "520011 ~ Abraxis . Microcystins and Nodularins by Immunoassay, Microtiter Plate",
  "520012": "520012 ~ Abraxis . Microcystins in water by Immunoassay, Coated Tube",
  "520016": "",
  "520019": "",
  "520023": "520023 ~ Abraxis .",
  "520042": "520042 ~ Abraxis . https://www.eurofins-technologies.com/anatoxin-a-vfdf-0-2-5-ppb-dipstick-source-drinking-water-5-tests.htmlhttps://www.atzlabs.com/pdf/Anatoxin-a-Strip-Test-for-Water-052016.pdf",
  "520050": "520050 ~ Abraxis . Anatoxin-a in water by Receptor-Binding Assay, Microtiter Plate http://www.abraxiskits.com/wp-content/uploads/2017/02/Anatoxin-a-Receptor-Binding-Assay-Insert-R050316.pdf",
  "520060": "The description is: 520060 ~ Abraxis . Anatoxin-a in water by ELISA, Microtiter Plate   URL to use: http://www.abraxiskits.com/wp-content/uploads/2017/03/Anatoxin-a-ELISA-Plate-Insert.pdf",
  "522003": "522003 ~ Abraxis . Sulfamethoxazole(SMX) by Immunoassay, Microtiter Plate",
  "522011": "522011 ~ Abraxis . Cylindrospermopsin in water by Immunoassay, Microtiter Plate",
  "522015": "522015 ~ Abraxis . Microcystins in water by Immunoassay, Direct Monoclonal Microtiter Plate",
  "530001": "530001 ~ Abraxis . PCBs by Immunoassay, Higher Chlorinated, Magnetic Particle",
  "530011": "530011 ~ Abraxis . Coplanar PCBs by Immunoassay, Microtiter Plate",
  "530021": "530021 ~ Abraxis . PCBs by Immunoassay, Lower Chlorinated, Magnetic Particle",
  "530039": "530039 ~ Abraxis . Benzo(a)Pyrene by Immunoassay, Microtiter Plate",
  "530111": "530111 ~ Abraxis . Triclosan by Immunoassay, Magnetic Particle",
  "530114": "530114 ~ Abraxis . Triclosan by Immunoassay, Microtiter Plate",
  "540021": "540021 ~ Abraxis . Cyclodienes by Immunoassay, Microtiter Plate",
  "540041": "540041 ~ Abraxis . DDE/DDT by Immunoassay, Microtiter Plate",
  "550051": "550051 ~ Abraxis . Organophosphate and Carbamate Pesticides by Cholinesterase Inhibition, Tube",
  "550055": "550055 ~ Abraxis . OP/Carbamate by Immunoassay, Microtiter Plate",
  "580002": "580002 ~ Abraxis . 17-B Estradiol by Immunoassay, Microtiter Plate",
  "7000301": "7000301 ~ MWI . PCP (pentachlorophenol) in soils/sediment by immunoassay",
  "7061301": "7061301 ~ MWI . PAH in soils/sediment by immunoassay",
  "00-01": "",
  "00-02": "",
  "00-03": "",
  "00-04": "",
  "00-05": "",
  "00-06": "",
  "00-07": "",
  "00-09": "",
  "0010(B)": "",
  "0010(BT)": "",
  "0010(W)": " in Water",
  "0011-0": "",
  "0011A": "",
  "002(A)": "",
  "002(W)": " in Water",
  "0023A": "",
  "004(A)": "",
  "004(S)": " in Sediment",
  "004(W)": " in Water",
  "005(A)": "",
  "005(BT)": "",
  "005(S)": " in Sediment",
  "005(W)": " in Water",
  "008(BT)": "",
  "008(S)": " in Sediment",
  "008(V)": "",
  "008(W)": " in Water",
  "10-107-04-1-A": "http://www.uvm.edu/bwrl/lab_docs/protocols/Nitrate_water_lachat.pdf",
  "10-107-04-1-C": "",
  "10-107-04-1-D": "",
  "10-107-04-1-J": "http://www.lachatinstruments.com/download/Ultra-Low-Flow-Datapack_9-09.pdf",
  "10-107-04-1-O": "URL: http://www.lachatinstruments.com/download/LL022-Rev-7.pdf",
  "10-107-04-3-P": "",
  "10-107-04-4-A": "http://www.lachatinstruments.com/download/LL022_Methods-List_Rev%206.pdf",
  "10-107-04-4-B": "http://www.lachatinstruments.com/download/LL022_Methods-List_Rev%206.pdf",
  "10-107-04-6-A": "",
  "10-107-06-1-B": "This method covers the determination of ammonia in drinking, ground,surface, and saline waters, domestic and industrial wastes. Determination of ammonia nitrogen by semi-automated colorimetry. https://www.hach.com/asset-get.download.jsa?id=32128559557",
  "10-107-06-1-J": "",
  "10-107-06-1-K": "",
  "10-107-06-2-A": "",
  "10-107-06-2-B": "URL: http://www.lachatinstruments.com/download/LL022-Rev-7.pdf",
  "10-107-06-2-E": "",
  "10-107-06-2-H": "http://www.lachatinstruments.com/download/LL022_Methods-List_Rev%206.pdf",
  "10-107-06-2-M": "URL: http://www.lachatinstruments.com/download/LL022-Rev-7.pdf",
  "10-107-06-2-O": "URL: (page 19 on pdf): http://www.lachatinstruments.com/download/LL022-Rev-7.pdf",
  "10-107-06-3-D": "http://www.lachatinstruments.com/download/LL022_Methods-List_Rev%206.pdf",
  "10-109-12-2-A": "",
  "10-115-01-1-A": "0.01 to 2.0 mg P L-1. Total P (method 10-115-01-1-F) 3 to 200 ug P L-1 (pre-digested using persulfate digestion method)",
  "10-115-01-1-B": "",
  "10-115-01-1-F": "",
  "10-115-01-1-O": "URL: (page 48 on pdf): http://www.lachatinstruments.com/download/LL022-Rev-7.pdf",
  "10-115-01-2-B": "URL: http://www.lachatinstruments.com/download/LL022-Rev-7.pdf",
  "10-115-01-4-B": "http://www.lachatinstruments.com/download/LL022_Methods-List_Rev%206.pdf",
  "10-117-07-1-A": "",
  "10-117-07-1-B": "",
  "10-204-00-1-X": "",
  "10-3.3": "",
  "10-308-00-1-A": "http://www.lachatinstruments.com/download/LL022Rev5.pdf",
  "10-510-00-1-A": "",
  "10-510-00-1-E": "https://lams.nelac-institute.org/TestMethodDetails?code=60008108",
  "10-511-00-1-A": "",
  "100.1": "100.1 ~ EPA-NERL . Asbestos in Water by TEM",
  "100.2": "100.2 ~ EPA-NERL . Asbestos in Water by TEM",
  "1000.0": "",
  "1002-8-2009": "",
  "1002.0**ret**use TEST METHOD 1002.0": "DO NOT USE ~ ",
  "1002G": "",
  "100P": "100P EPA ASB.pdf",
  "10150 B": "Determining Chlorophyll a in the Presence of Pheophytin a.  https://www.standardmethods.org/doi/10.2105/SMWW.2882.253",
  "101A": "",
  "10200-F": "",
  "10200-G": "",
  "10200-H": "",
  "10200-I": "",
  "10200-J": "",
  "10200H(2)": "",
  "10200H(3)": "",
  "1020A": "",
  "1020B": "STANDARD TEST METHODS FOR FLASH POINT BY SETAFLASH (SMALL SCALE) CLOSED-CUP APPARATUS; https://19january2017snapshot.epa.gov/hw-sw846/sw-846-test-method-1020b-standard-test-methods-flash-point-setaflash-small-scale-closed-cup_.html",
  "1030-E": "",
  "10300-C": "",
  "10300-D": "",
  "10400-D": "",
  "10400-E": "",
  "10500-C": "",
  "107A": "",
  "10A": "",
  "10AU": "http://www.turnerdesigns.com/t2/doc/manuals/998-0011.pdf",
  "10B": "",
  "110.1": "110.1 ~ EPA-NERL . Color by Spectrophotometry",
  "110.2": "110.2 ~ EPA-NERL . Color by Spectrophotometry",
  "110.3": "110.3 ~ EPA-NERL . Color by Spectrophotometry",
  "1103.1": "https://www.nemi.gov/methods/method_summary/5575/",
  "1103.1 (MODIFIED)": "1103.1 (modified) ~ EPA-MICRO . Membrane filtration plating of E. coli on modified mTEC agar",
  "1106.1": "1106.1 ~ EPA-OW . Enterococci in water by MF using mE-EI Agar",
  "12 (ATM PB)": "",
  "12 (ISOTOPES)": "",
  "120.1": "120.1 ~ EPA-NERL . Conductance by Conductivity Meter",
  "120.1_M": "",
  "120.6": "",
  "129-71W": "Industrial Method No. 129-71W, Fluoride in Water and Wastewater, Technicon Industrial Systems, Bran and Luebbe, 1972 (Technicon)",
  "130***retired***use 130..0": "DO NOT USE ~ ",
  "130.0": "130 ~ NOAA NST . Capillary gas chromatography analysis for organic contaminates in marine sediments.",
  "130.01": "130.01 ~ NOAA NST . Organic contaminates in marine animal tissues by GC-FPD",
  "130.1": "130.1 ~ NOAA NST . Organic contaminants in marine sediments by GC-ECD",
  "130.11": "130.11 ~ NOAA NST . Organic contaminants in marine animal tissues by GC-ECD",
  "130.2": "130.2 ~ EPA-NERL . Total Hardness of Water by Titrimetry",
  "130.21": "130.21 ~ NOAA NST . Dioxins and Furans in marine bivalve tissues by GC-MS",
  "130.3": "130.3 ~ NOAA NST . Organic contaminants in marine sediments by GC-MS",
  "130.31": "130.31 ~ NOAA NST . Organic contaminants in marine animal tissues by GC-MS",
  "131.0": "",
  "131.01": "131.01 ~ NOAA NST . Trace mercury in marine animal tissues by CVAA",
  "132.0": "",
  "132.1": "132.1 ~ NOAA NST . Trace metals in marine animal tissue by neutron activation",
  "135-00 (QUALITATIVE)": "B-9135-00 (Qualitative) ~ USGS-NWQL . Benthic Macroinvertebrate Sample Processing: Qualitative Visual Sort Method",
  "1367-99": "1367-99 ~ ASTM . Sediment Toxicity Test Using Leptocheirus plumulosus",
  "13A": "",
  "13B": "",
  "140.0": "",
  "140.1": "https://www.nemi.gov/methods/method_summary/7185/",
  "15-2": "Klute, Arnold, Ed. Methods of Soil Analysis Part 1:Physical and Mineralogical Methods. Book Series No 5. 2nd ed. Madison, Wisconsin: Soil Society of America, Inc. and American Society of Agronomy, Inc.. 1986: 385-398",
  "15-5": "https://www.agronomy.org/publications/aj/articles/103/6/1635, and American Society of Agronomy, Inc.. 1996. Pages 404-411.",
  "150.1": "150.1 ~ EPA-NERL . pH in Water by Electrometric Method",
  "150.2": "150.2 ~ EPA-NERL . pH in Water",
  "150.2_M": "",
  "150.6": "",
  "151.0": "",
  "151.1": "151.1 ~ NOAA NST . Trace metals in marine animal tissue by FAA",
  "155.1": "155.1 ~ NOAA NST . Trace metals in marine animal tissues by X-ray fluorescence",
  "160.0": "",
  "160.1": "160.1 ~ EPA-NERL . Filterable Residue by Drying Oven",
  "160.1_M": "",
  "160.2": "160.2 ~ EPA-NERL . Non-filterable Residue by Drying Oven",
  "160.2_M": "",
  "160.3": "160.3 ~ EPA-NERL . Total Residue by Drying Oven",
  "160.4": "160.4 ~ EPA-NERL . Volatile Residue by Muffle Furnace",
  "160.5": "160.5 ~ EPA-NERL . Determination Settleable Matter in Water Using an Imhoff Cone",
  "1609.1": "with Internal Amplification Control (IAC) Assay",
  "1611.1": "",
  "1611.1B": "Acceptability of the EPA qPCR Test at Your Beach (PDF)(4 pp, 36 K,December 2013,820-R-13-012) . Detection and Quantification Limits of EPA Enterococcus qPCR Methods (PDF)(7 pp, 62 K,December 2013,820-R-13-013)",
  "1613(B)": "http://www.epa.gov/region3/1613.pdf",
  "1613(S)": " in Solids",
  "1613(W)": " in Water",
  "1620(A)": "",
  "1620(B)": "",
  "1620(C)": "",
  "1620(D)": "",
  "1624(S)": " in Sediment",
  "1624(W)": " in Water",
  "1625(AW)": "",
  "1625(BNW)": "",
  "1625(S)": " in Sediment",
  "1625(T)": "",
  "1630 Mod": "1630 MOD~ EPA-EAD . Methyl Mercury in Water, Method 1630: Methyl Mercury in Water by Distillation, Aqueous Ethylation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry as described in https://www.epa.gov/sites/default/files/2015-08/documents/method_1630_1998.pdf . And then modified as described in Guidance for Implementing the January 2001 Methylmercury Water Quality Criterion (EPA 823-R-10-001) which can be found at https://www.epa.gov/sites/default/files/2019-02/documents/guidance-implement-methylmercury-2001.pdf . Table C1 in Appendix C describes the technique for the modification involving digesting tissue with acid solution and neutralizing with acetate buffer.",
  "1631A": "http://www.tekran.com/files/EPA_1631_Appendix_for_Solids.pdf",
  "1631B": "http://nepis.epa.gov/Exe/ZyNET.exe/40001EQ2.TXT?ZyActionD=ZyDocument&Client=EPA&Index=1995+Thru+1999&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%5C95thru99%5CTxt%5C00000022%5C40001EQ2.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=p%7Cf&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPage=x&ZyPURL",
  "1631E": "",
  "1633A": "https://www.epa.gov/system/files/documents/2024-12/method-1633a-december-5-2024-508-compliant.pdf",
  "1656(ECD)": "",
  "1656(HSD)": "",
  "1657A": "",
  "1664A": "",
  "1664B": "Source: https://www.epa.gov/sites/production/files/2015-08/documents/method_1664b_2010.pdf",
  "1668A": "",
  "1668A (TISSUE)": "1668a (Tissue) ~ EPA-OGWDW/TSC . Chlorinated Biphenyls in Tissue by HRGC/HRMS",
  "1668A (WATER)": "1668a (Water) ~ EPA-OGWDW/TSC . Chlorinated Biphenyls in Aqueous Samples by HRGC/HRMS",
  "1668B": "",
  "1668C": "",
  "1668a (Soil/Sediment)": "",
  "16A": "",
  "16B": "",
  "170.1": "170.1 ~ EPA-NERL . Temperature by Thermometer",
  "172.0": "",
  "172.1": "172.1 ~ NOAA NST . Trace metals in marine animal tissues by ICP/MS",
  "180.1": "180.1 ~ EPA-NERL . Turbidity by Turbidimeter",
  "1A": "",
  "1AP73-7": "",
  "1AP77-A": "",
  "1RM-1": "",
  "1RM-15": "",
  "1RM-19": "",
  "1RM-20": "",
  "1RM-5": "",
  "1RM-6": "",
  "1RM-7": "",
  "1SRM-1": "",
  "2.1 (ATM SO2)": "",
  "2.1 (PART.PM10)": "",
  "2.11": "",
  "2.1A": "",
  "2.2": "",
  "2.3": "",
  "2.6": "",
  "2.8": "",
  "2.9": "",
  "20-0001": "",
  "20-0011": "",
  "20-0017": "",
  "20-0020": "",
  "20-0068": "",
  "20-0098": "",
  "20-0099": "",
  "20-0149": "",
  "20-0173": "",
  "20-0218": "",
  "20-0230": "",
  "200.1": "200.1 ~ EPA-NERL . Trace Elements in Marine Waters by ICPMS",
  "200.1(FLAA)": "",
  "200.1(GFAA)": "",
  "200.1(ICP)": "",
  "200.10": "",
  "200.10_M": "",
  "200.11": "",
  "200.12": "200.12 ~ EPA-NERL . Trace Elements in Marine Waters by GFAA",
  "200.13": "200.13 ~ EPA-NERL . Trace Elements by GFAA (w/ Preconcentration)",
  "200.15": "",
  "200.2": "",
  "200.3": "Tissue samples are homogenized and sub-sampled prior to hotblock digestion with HNO3, HCl, and H2O2. Analysis is by Collision/Reaction Cell ICPMS.",
  "200.5": "200.5 ~ EPA-ORD / EPA-OST . Trace elements in water by AVICP-AES",
  "200.6": "",
  "200.62(B)": "",
  "200.62(C)": "",
  "200.7": "200.7 ~ EPA-NERL . Metals in Water by ICP-AES",
  "200.7(S)": " in Sediment",
  "200.7(W)": "200.7 ~ EPA-NERL . Metals in Water by ICP-AES",
  "200.7_M": "",
  "200.8": "200.8 ~ EPA-NERL . Metals in Waters by ICP/MS",
  "200.8(S)": " in Sediment",
  "200.8(W)": "200.8 ~ EPA-NERL . Metals in Waters by ICP/MS",
  "200.9": "https://www.epa.gov/sites/production/files/2015-08/documents/method_200-9_rev_2-2_1994.pdf",
  "2000.0": "",
  "2002.0": "",
  "2004.0": "https://www.epa.gov/cwa-methods/acute-toxicity-wet-methods",
  "2005.06": "",
  "2006.0": "https://www.epa.gov/cwa-methods/acute-toxicity-wet-methods",
  "2007.0": "https://www.epa.gov/cwa-methods/acute-toxicity-wet-methods",
  "201(CSR)": "",
  "201(EGR)": "",
  "2015.01": "https://www.scribd.com/document/307771009/00-AOAC-Method-2015-01",
  "2015.03": "http://www.aoac.org/imis15_prod/AOAC_Docs/NEWS/2015_03_Rev_2.pdf",
  "2019.0": "https://www.epa.gov/cwa-methods/acute-toxicity-wet-methods",
  "202.1": "202.1 ~ EPA-NERL . Aluminum by Flame AA",
  "202.1_M": "",
  "202.2": "202.2 ~ EPA-NERL . Aluminum by Graphite Furnace AA",
  "202.2_M": "",
  "202.2_M/HG)": "",
  "202.62(D)": "",
  "2021.0": "https://www.epa.gov/cwa-methods/acute-toxicity-wet-methods",
  "203A": "",
  "203B": "",
  "203C": "",
  "204.1": "204.1 ~ EPA-NERL . Antimony by Flame AA",
  "204.1_M": "",
  "204.2": "204.2 ~ EPA-NERL . Antimony by Graphite Furnace AA",
  "204.2_M": "",
  "206.2": "206.2 ~ EPA-NERL . Arsenic by Graphite Furnace AA",
  "206.2_M": "",
  "206.3": "206.3 ~ EPA-NERL . Arsenic by Gaseous Hydride Generation and AA",
  "206.3_M": "",
  "206.4": "206.4 ~ EPA-NERL . Arsenic by Spectrophotometry",
  "206.5": "206.5 ~ EPA-NERL . Sample Digestion for Arsenic",
  "208.1": "208.1 ~ EPA-NERL . Barium by Flame AA",
  "208.1_M": "",
  "208.2": "208.2 ~ EPA-NERL . Barium by Graphite Furnace AA",
  "208.2_M": "",
  "209C": "Standard Methods (19th ed.) 209C (gravimetric, 103-105 degree C post washing of residue) mg/L",
  "210.1": "210.1 ~ EPA-NERL . Beryllium by Flame AA",
  "210.1_M": "",
  "210.2": "210.2 ~ EPA-NERL . Beryllium by Graphite Furnace AA",
  "210.2_M": "",
  "211.1": "",
  "212.3": "212.3 ~ EPA-NERL . Boron by Colorimetry",
  "2120-B": "2120 B ~ Standard Methods . Color in Water by Visual Comparison Method",
  "2120-C": "2120 C ~ Standard Methods . Color in Water by Spectrophotometry",
  "2120-D": "",
  "2120-E": "2120 E ~ Standard Methods . Color in Water by ADMI Tristimulus Method",
  "213.1": "213.1 ~ EPA-NERL . Cadmium by Flame AA",
  "213.1_M": "",
  "213.2": "213.2 ~ EPA-NERL . Cadmium by GFAA",
  "213.2_M": "",
  "2130-B": "Not current version URL: https://www.nemi.gov/methods/method_summary/9645/",
  "215.1": "215.1 ~ EPA-NERL . Calcium by Flame AA",
  "215.1_M": "",
  "215.2": "215.2 ~ EPA-NERL . Calcium by Titrimetry",
  "2150 B": "2150B / 2150 B ~ Standard Methods . Threshold Odor Test",
  "2160-B": "",
  "2160-C": "",
  "218.1": "218.1 ~ EPA-NERL . Chromium by Flame AA",
  "218.1_M": "",
  "218.2": "218.2 ~ EPA-NERL . Chromium by Graphite Furnace AA",
  "218.2_M": "",
  "218.3": "218.3 ~ EPA-NERL . Chromium by Chelation Extraction and Flame AA",
  "218.4": "218.4 ~ EPA-NERL . Hexavalent Chromium Using Chelation Extraction and AA",
  "218.5": "",
  "218.6": "218.6 ~ EPA-ORD / EPA-OST . Hexavalent Chromium in Water by Ion Chromatography",
  "218.7": "Determination of Hexavalent Chromium in Drinking Water by Ion Chromatography with Post-Column Derivatization and UV-Visible Spectroscopic Detection",
  "219.1": "219.1 ~ EPA-NERL . Cobalt by Flame AA",
  "219.1_M": "",
  "219.2": "219.2 ~ EPA-NERL . Cobalt by Graphite Furnace AA",
  "219.2_M": "",
  "220.1": "220.1 ~ EPA-NERL . Copper by Flame AA",
  "220.1_M": "",
  "220.2": "220.2 ~ EPA-NERL . Copper by Graphite Furnace AA",
  "220.2_M": "",
  "221.1": "",
  "2241-2": "",
  "231.1": "231.1 ~ EPA-NERL . Gold by Flame AA",
  "231.2": "231.2 ~ EPA-NERL . Gold by Graphite Furnace AA",
  "2310 B": "2310B / 2310 B ~ Standard Methods . Acidity by Titration",
  "2320 B": "",
  "2320-B": "2320B ~ Standard Methods . Alkalinity by Titration",
  "2330-B": "",
  "2340B": "2340B ~ Standard Methods . Hardness in Water by EDTA Titration",
  "2340C": "",
  "235.1": "235.1 ~ EPA-NERL . Iridium by Flame AA",
  "235.2": "235.2 ~ EPA-NERL . Iridium by Graphite Furnace AA",
  "2350-B": "",
  "2350-C": "",
  "2350-D": "",
  "2350-E": "",
  "236.1": "236.1 ~ EPA-NERL . Iron by Flame AA",
  "236.1_M": "",
  "236.2": "236.2 ~ EPA-NERL . Iron by Graphite Furnace AA",
  "236.2_M": "",
  "239.1": "239.1 ~ EPA-NERL . Lead by Flame AA",
  "239.1_M": "",
  "239.2": "239.2 ~ EPA-NERL . Lead by Graphite Furnace AA",
  "239.2_M": "",
  "24-5.4": "",
  "242.1": "242.1 ~ EPA-NERL . Magnesium by Flame AA",
  "242.1_M": "",
  "242.4": "",
  "243.1": "243.1 ~ EPA-NERL . Manganese by Flame AA",
  "243.1_M": "",
  "243.2": "243.2 ~ EPA-NERL . Manganese by Graphite Furnace AA",
  "243.2_M": "",
  "245.1": "245.1 ~ EPA-NERL . Mercury by CVAA",
  "245.1_M": "",
  "245.2": "245.2 ~ EPA-NERL . Mercury by CVAA (Automated)",
  "245.2_M": "",
  "245.3": "",
  "245.5": "",
  "245.5_M": "",
  "245.6": "",
  "245.7": "245.7 ~ EPA-ORD / EPA-OST . Mercury in water by cold-vapor atomic fluorescence spectrometry",
  "246.1": "246.1 ~ EPA-NERL . Molybdenum by Flame AA",
  "246.2": "246.2 ~ EPA-NERL . Molybdenum by Graphite Furnace AA",
  "249.1": "249.1 ~ EPA-NERL . Nickel by Flame AA",
  "249.1_M": "",
  "249.2": "249.2 ~ EPA-NERL . Nickel by Graphite Furnace AA",
  "249.2_M": "",
  "2510B": "In the laboratory, conductance (or resistance) of a standard KCl solution is measured and from the corresponding conductivity, a cell constant is calculated. Once the cell constant has been determined, or set, the conductivity of an unknown solution will be displayed by the meter. https://archive.org/details/gov.law.apha.method.2510.1992",
  "252.1": "252.1 ~ EPA-NERL . Osmium by Flame AA",
  "252.2": "252.2 ~ EPA-NERL . Osmium by Graphite Furnace AA",
  "2520-B": "",
  "2520-C": "",
  "2520-D": "",
  "253.1": "253.1 ~ EPA-NERL . Palladium by Flame AA",
  "253.2": "253.2 ~ EPA-NERL . Palladium by Graphite Furnace AA",
  "2530-B": "",
  "2530-C": "",
  "2540-B": "2540 B ~ Standard Methods . Total Solids Dried at 103-105<sup>o</sup>C",
  "2540-C": "Not current version URL: https://www.nemi.gov/methods/method_summary/9818/",
  "2540-D": "2540 D ~ Standard Methods . Total Suspended Solids Dried at 103-105<sup>o</sup>C",
  "2540-E": "Not current version URL: ",
  "2540-F": "2540 F ~ Standard Methods . Settleable Solids",
  "2540-G": "",
  "2540C": "2540 C,   Url: https://www.standardmethods.org/store/ProductView.cfm?ProductID=63",
  "255.1": "255.1 ~ EPA-NERL . Platinum by Flame AA",
  "255.2": "255.2 ~ EPA-NERL . Platinum by Graphite Furnace AA",
  "2550 B": "2550B / 2550 B ~ Standard Methods . Temperature of Water, Laboratory and Field Methods",
  "2560-B": "",
  "2560-C": "",
  "2560-D": "",
  "2570-B": "",
  "258.1": "258.1 ~ EPA-NERL . Potassium by Flame AA",
  "258.1_M": "",
  "25A": "",
  "25B": "",
  "25C": "",
  "25D": "",
  "25E": "",
  "264.1": "",
  "264.2": "",
  "265.1": "265.1 ~ EPA-NERL . Rhodium by Flame AA",
  "265.2": "265.2 ~ EPA-NERL . Rhodium by Graphite Furnace AA",
  "267.1": "267.1 ~ EPA-NERL . Ruthenium by Flame AA",
  "267.2": "267.2 ~ EPA-NERL . Ruthenium by Graphite Furnace AA",
  "26A": "",
  "270.2": "270.2 ~ EPA-NERL . Selenium by Graphite Furnace AA",
  "270.2_M": "",
  "270.3": "",
  "272.1": "272.1 ~ EPA-NERL . Silver by Flame AA",
  "272.1_M": "",
  "272.2": "272.2 ~ EPA-NERL . Silver by Graphite Furnace AA",
  "272.2_M": "",
  "273.1": "273.1 ~ EPA-NERL . Sodium by Flame AA",
  "273.1_M": "",
  "273.2": "",
  "279.1": "279.1 ~ EPA-NERL . Thallium by Flame AA",
  "279.1_M": "",
  "279.2": "279.2 ~ EPA-NERL . Thallium by GF-AA",
  "279.2_M": "",
  "28000-88": "28000-88 ~ Hach Co. . Arsenic Test Strip",
  "282.1": "282.1 ~ EPA-NERL . Tin by Flame AA",
  "282.2": "282.2 ~ EPA-NERL . Tin by Graphite Furnace AA",
  "283.1": "283.1 ~ EPA-NERL . Titanium by Flame AA",
  "283.2": "283.2 ~ EPA-NERL . Titanium by Graphite Furnace AA",
  "286.1": "286.1 ~ EPA-NERL . Vanadium by Flame AA",
  "286.1_M": "",
  "286.2": "286.2 ~ EPA-NERL . Vanadium by Graphite Furnace AA",
  "286.2_M": "",
  "289.1": "289.1 ~ EPA-NERL . Zinc by Flame AA",
  "289.1_M": "",
  "289.2": "289.2 ~ EPA-NERL . Zinc by Graphite Furnace AA",
  "289.2_M": "",
  "29-3.5.2": "",
  "29-B": "https://www.pacelabs.com/assets/documents/Environmental/capabilities-2015.pdf",
  "3.2-B": "",
  "3.2-C": "",
  "3.2-D": "",
  "3.3-B": "",
  "3.3-C": "",
  "3.4": "",
  "3.5": "",
  "300(A)": "",
  "300(B)": "",
  "300***retired***use 300..0": "DO NOT USE ~ 300 ~ EPA-NERL . Inorganic Anions by Ion Chromatography",
  "300.0": "300 ~ EPA-NERL . Inorganic Anions by Ion Chromatography",
  "300.1": "300.1 ~ EPA-OGWDW/TSC . Anions in Water by IC",
  "300.6": "",
  "300.7": "",
  "300_M": "",
  "302***retired***use 302..0": "DO NOT USE ~ 302 ~ EPA-OGWDW/TSC . Bromate in Drinking Water Using 2-D IC With Suppressed Conductivity Detection",
  "302.0": "",
  "3030 E": "3030E / 3030 E ~ Standard Methods . Nitric Acid Digestion of Metals",
  "3030 F": "3030F / 3030 F ~ Standard Methods . Nitric and Hydrochloric Acid Digestion",
  "3030 G": "3030G / 3030 G ~ Standard Methods . Nitric and Sulfuric Acid Digestion",
  "3030 H": "3030H / 3030 H ~ Standard Methods . Nitric and Perchloric Acid Digestion",
  "3030 I": "3030I / 3030 I ~ Standard Methods . Nitric, Perchloric and Hydrofluoric Acid",
  "3030 J": "3030J / 3030 J ~ Standard Methods . Dry Ashing of Metals Samples",
  "3030 K": "3030K / 3030 K ~ Standard Methods . Microwave Assisted Digestion of Metals",
  "3030B": "3030B ~ Standard Methods . Preliminary Filtration of Metals Samples",
  "3030C": "3030C ~ Standard Methods . Treatment for Acid-Extractable Metals",
  "3030D": "3030D ~ Standard Methods . Preliminary Digestion for Metals",
  "304A": "",
  "304B": "",
  "305.1": "305.1 ~ EPA-NERL . Acidity by Titration",
  "305.2": "",
  "3050B": "",
  "306A": "",
  "31-107-04-3-A": "",
  "31-107-04-4-A": "http://www.lachatinstruments.com/applications/UV-Nitrate-Nitrite-Conversion-Methods.asp",
  "310.1": "310.1 ~ EPA-NERL . Alkalinity by Titration",
  "310.1_M": "",
  "310.2": "310.2 ~ EPA-NERL . Alkalinity by Autoanalyzer",
  "3111 C***retired***": "DO NOT USE ~ ",
  "3111 D***retired***": "DO NOT USE ~ ",
  "3111-B": "3111B ~ Standard Methods . Metals in water by FLAA",
  "3111-C": "3111 C ~ Standard Methods . Metals by Flame Atomic Absorption Spectrometry, Extraction/Air-Acetylene Flame Method",
  "3111-D": "3111 D ~ Standard Methods . Metals in water by FLAA",
  "3111-E": "",
  "3111B***retired***": "DO NOT USE ~ ",
  "3112 B***retired*** 3112-B": "DO NOT USE ~ ",
  "3112-B": "3112 B ~ Standard Methods . Metals in Water by CV-AAS",
  "3113 B***retired*** 3113-B": "DO NOT USE ~ ",
  "3113-B": "3113 B ~ Standard Methods . Metals in Water by GFAA",
  "3114 B***retired*** 3114-B": "DO NOT USE ~ ",
  "3114-B": "3114 B ~ Standard Methods . Arsenic and Selenium by Hydride Generation/AAS",
  "3114-C": "",
  "3120 B (TOTAL)": "3120B / 3120 B (total) ~ Standard Methods . Metals (total recoverable) in Water by ICP",
  "3120 B (dissolved)": "",
  "3135.2I": "3135.2I ~ EPA Region 7 ENSV . Cyanide in Water and Soil by Colorimetry",
  "314-B": "Standard Methods (19th ed.) 314B (colorimetric, EDTA titration, manual) mg/L",
  "314.0": "",
  "314.1": "314.1 ~ EPA-OGWDW/TSC . Perchlorate in water using inline column IC",
  "317.0": "",
  "317.0REV2.0": "317.0rev2.0 ~ EPA-OGWDW/TSC . Inorganic Oxyhalide DBPs in Drinking Water By Ion Chromatography With Conductivity Detection and Trace Bromate Using Post Column Reagent Colorimetry",
  "320.1": "320.1 ~ EPA-NERL . Bromide by Titration",
  "321.8": "321.8 ~ EPA-NERL . Bromate by IC/ICP-MS",
  "325.1": "325.1 ~ EPA-NERL . Chloride by Automated Colorimetry",
  "325.2": "325.2 ~ EPA-NERL . Chloride by Automated Colorimetry",
  "325.3": "325.3 ~ EPA-NERL . Chloride by Titrimetry",
  "325.6": "",
  "325_M(A)": "",
  "325_M(B)": "",
  "326.0": "",
  "327.0 REV1.1": "327.0 rev1.1 ~ EPA-OGWDW/TSC . Chlorine Dioxide and Chlorite in Drinking Water by Visible Spectrophotometry",
  "330.1": "330.1 ~ EPA-NERL . Total Residual Chlorine by Titration",
  "330.2": "330.2 ~ EPA-NERL . Total Residual Chlorine by Titration",
  "330.3": "330.3 ~ EPA-NERL . Total Residual Chlorine by Titration",
  "330.4": "330.4 ~ EPA-NERL . Total Residual Chlorine by Titration",
  "330.5": "330.5 ~ EPA-NERL . Total Residual Chlorine by Spectrophotometer",
  "331***retired***use 331..0": "DO NOT USE ~ 331 ~ EPA-TSC/NERL . Perchlorate in water by LC/EMI/MS",
  "331.0": "",
  "332***retired***use 332..0": "DO NOT USE ~ 332 ~ EPA-NERL . Perchlorate in drinking water by IC-ESI/MS",
  "332.0": "",
  "335.1": "335.1 ~ EPA-NERL . Cyanides, amenable to chlorination",
  "335.2": "335.2 ~ EPA-NERL . Cyanide, total, in Water",
  "335.2(MIDI)": "",
  "335.2_M(S)": " in Sediment",
  "335.2_MA(W)": " in Water",
  "335.2_MB(W)": " in Water",
  "335.2_MC(W)": " in Water",
  "335.3": "335.3 ~ EPA-NERL . Cyanide by Automated Colorimetry",
  "335.4": "335.4 ~ EPA-NERL . Cyanide, total, by Colorimetry",
  "335.63": "",
  "340.1": "340.1 ~ EPA-NERL . Fluoride by Colorimetry",
  "340.2": "340.2 ~ EPA-NERL . Fluoride by ISE",
  "340.3": "340.3 ~ EPA-NERL . Fluoride by Colorimetry",
  "340.6": "",
  "345.1": "",
  "349***retired***use 349..0": "DO NOT USE ~ 349 ~ EPA-NERL . Ammonia in Estuarine and Coastal Waters by Colorimetry",
  "349.0": "",
  "35-00 (QUANTITATIVE)": "B-9135-00 (Quantitative) ~ USGS-NWQL . Benthic Macroinvertebrate Sample Processing: Quantitative Fixed-Count Method",
  "35-00 (TAXONOMIC ID)": "B-9135-00 (Taxonomic ID) ~ USGS-NWQL . Benthic Macroinvertebrate Sample Processing: Taxonomic Identification",
  "350.1": "",
  "350.2 (Nesslerization)**ret 350.2 N": "DO NOT USE ~ ",
  "350.2 (TITRATION)": "350.2 (Titration) ~ EPA-NERL . Ammonia by Titrimetry",
  "350.2 NESSLERIZATION": "350.2 (Nesslerization) ~ EPA-NERL . Ammonia by Colorimetry (Nesslerization)",
  "350.2(A)": "",
  "350.2(B)": "",
  "350.2(C)": "",
  "350.3": "350.3 ~ EPA-NERL . Ammonia