Parameter and units | Analytical Technology 1 | EPA | Standard methods 27 | AOAC, ASTM, USGS | Other |
Bacteria: |
1. Coliform (fecal), number per 100 mL or number per gram dry weight | Most Probable Number (MPN), 5 tube, 3 dilution, or | p. 132 3 1680 11,15 1681 11,20 | 9221 C-2006 9221 E-2006 |
Membrane filter (MF) 2, single step | p. 124 3 | 9222 D-1997 | B-0050-85 4 |
2. Coliform (fecal) in presence of chlorine, number per 100 mL | MPN, 5 tube, 3 dilution, or | p. 132 3 | 9221 C-2006 9221 E-2006 |
MF 2, single step 5 | p. 124 3 | 9222 D-1997 |
3. Coliform (total), number per 100 mL | MPN, 5 tube, 3 dilution, or | p. 114 3 | 9221 B-2006 |
MF 2, single step or two step | p. 108 3 | 9222 B-1997 | B-0025-85 4 |
4. Coliform (total), in presence of chlorine, number per 100 mL | MPN, 5 tube, 3 dilution, or | p. 114 3 | 9221 B-2006 |
MF 2 with enrichment 5 | p. 111 3 | 9222 (B + B.5c)−1997 |
5.E. coli,number per 100 mL 21 | MPN 6,8,16 multiple tube, or | 9221B.1-2006/ 9221F-2006 12,14 |
multiple tube/multiple well, or | 9223 B-200 413 | 991.15 10 | Colilert® 13, 18 Colilert-18® 13,17,18 |
MF 2,6,7,8 single step | 1603 22 | mColiBlue ®19 |
6. Fecal streptococci, number per 100 mL | MPN, 5 tube 3 dilution, or | p. 139 3 | 9230 B-2007 |
MF 2, or | p. 136 3 | 9230 C-2007 | B-0055-85 4 |
Plate count | p. 143 3 |
7. Enterococci, number per 100 mL 22 | MPN 6, 8, multiple tube/multiple well, or | D6503-99 9 | Enterolert®13, 24 |
MF 2, 6, 7, 8 single step or | 1600 25 | 9230 C-2007 |
Plate count | p. 143 3 |
8.Salmonella,number per gram dry weight 11 | MPN multiple tube | 1682 23 |
Aquatic Toxicity: |
9. Toxicity, acute, fresh water organisms, percent effluent | Daphnia, Ceriodaphnia dubia 48−h static− renewal mortality | Note 27 |
Fathead Minnow, Pimephales promelas, 96−h static renewal mortality, or 96−h flow−through mortality | Note 27 |
10. Toxicity, chronic, fresh water organisms, percent effluent | Daphnia, Ceriodaphnia dubia, survival and reproduction | Note 27 |
Fathead minnow, Pimephales promelas , larval survival and growth | Note 27 |
Parameter, Units | Analytical Technology 58 | EPA 52 | Standard methods | ASTM | USGS AOAC Other |
1. Acidity, as CaCO3, mg/L | Electrometric endpoint or phenolphthalein endpoint | 2310 B-1997 | D1067-06 | I-1020-85 2 |
2. Alkalinity, as CaCO3, mg/L | Electrometric or Colorimetric titration to pH 4.5, Manual | 2320 B-1997 | D1067-06 | I-1030-85 2 973.43 3 |
Automatic | 310.2 (Rev. 1974)1 | I-2030-85 2 |
3. Aluminum—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 D-1999 or 3111 E-1999 | I-3051-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 |
Stabilized temperature graphite furnace AA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma− atomic emission spectrometry (ICP-AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | I-4471-97 50 |
Inductively coupled plasma− mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct Current Plasma (DCP) 36 | D4190-08 | Note 34 |
Colorimetric (Eriochrome cyanine R) | 3500-Al B-2001 |
4. Ammonia (as N), mg/L | Manual distillation 6or gas diffusion (pH > 11), followed by any of the following: | 350.1, Rev. 2.0 (1993) | 4500-NH3B-1997 | 973.49 3 |
Titration | 4500-NH3C-1997 |
Electrode | 4500-NH3D-1997 or E-1997 | D1426-08 (B) |
Manual phenate, salicylate, or other substituted phenols in Berthelot reaction based methods | 4500-NH3F-1997 | Note 60 |
Automated phenate, salicylate, or other substituted phenols in Berthelot reaction based methods | 350.130, Rev. 2.0 (1993) | 4500-NH3G-1997 4500-NH3H-1997. | I-4523-85 2 |
Automated electrode | Note 7 |
Ion Chromatography | D6919-09 |
5. Antimony—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 |
Graphite furnace AA (GFAA) | 3113 B-2004 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma− mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
6. Arsenic-Total,4 mg/L | Digestion,4 followed by any of the following: | 206.5 (Issued 1978) 1 |
AA gaseous hydride | 3114 B-2009 or 3114 C-2009 | D2972-08 (B) | I-3062-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D2972-08 (C) | I-4063-98 49 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma− atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 |
Inductively coupled plasma− mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4020-05 70 |
Colorimetric (SDDC) | 3500-As B-1997 | D2972-08 (A) | I-3060-85 2 |
7. Barium-Total,4 mg/L | Digestion4, followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 D-1999 | I-3084-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D4382-02(07) |
Inductively coupled plasma− atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | I-4471-97 50 |
Inductively coupled plasma− mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct current plasma (DCP) 36 | Note 34 |
8. Beryllium—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) | 3111 D-1999 or 3111 E-1999 | D3645-08 (A) | I-3095-85.2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D3645-08 (B) |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma− atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma− mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct current plasma (DCP) | D4190-08 | Note 34 |
Colorimetric (Aluminon) | Note 61 |
9. Biochemical oxygen demand (BOD5), mg/L | Dissolved Oxygen Depletion | 5210 B-2001 | 973.44 3, p. 17 9, I-1578-78 8 Notes 10,63 |
10. Boron—Total,37mg/L | Colorimetric (Curcumin) | 4500-B B -2000 | I-3112-85 2 |
Inductively coupled plasma− atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma− mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct current plasma (DCP) | D4190-08 | Note 34 |
11. Bromide, mg/L | Titrimetric | I-1125-85 2 |
Ion selective electrode (ISE) | D1246-05 |
Ion Chromatography | 300.0, Rev 2.1 (1993) 300.1-1, Rev 1.0 (1997) | 4110 B-2000, C-2000, D-2000 | D4327-03 | 993.30 3 |
CIE/UV | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
12. Cadmium—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 or 3111 C-1999 | D3557-02(07) (A or B) | 974.27 3, p. 37 9, I-3135-85 2 or I-3136-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D3557-02(07) (D) | I-4138-89 51 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-1472-85 2 or I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct current plasma (DCP) 36 | D4190-08 | Note 34 |
Voltametry 11 | D3557-02(07) (C) |
Colorimetric (Dithizone) | 3500-Cd-D-1990 |
13. Calcium—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 | D511-08(B) | I-3152-85 2 |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
Direct current plasma (DCP) | Note 34 |
Titrimetric (EDTA) | 3500-Ca B-1997 | D511-08 (A) |
Ion Chromatography | D6919-09 |
14. Carbonaceous biochemical oxygen demand (CBOD5), mg/L12 | Dissolved Oxygen Depletion with nitrification inhibitor | 5210 B-2001 | Note 35,63 |
15. Chemical oxygen demand (COD), mg/L | Titrimetric | 410.3 (Rev. 1978)1 | 5220 B-1997 or C-1997 | D1252-06 (A) | I-3560-85 2, 973.46 3, p. 17 9 |
Spectrophotometric, manual or automatic | 410.4, Rev. 2.0 (1993) | 5220 D-1997 | D1252-06 (B) | Note 13,14 I-3561-85.2 |
16. Chloride, mg/L | Titrimetric: (silver nitrate) | 4500-Cl− B-1997 | D512-04 (B) | I-1183-85 2 |
Colorimetric: manual | I-1187-85 2 |
Colorimetric, Automated (Ferricyanide) | 4500-Cl− E-1997 | I-2187-85 2 |
Potentiometric Titration | 4500-Cl− D-1997 |
Ion Selective Electrode | D512-04 (C) |
Ion Chromatography | 300.0, Rev 2.1 (1993) and 300.1-1, Rev 1.0 (1997) | 4110 B-2000 or 4110 C-2000 | D4327-03 | 993.30 3, I-2057-90 51 |
Capillary ion electrophoresis ( CIE/UV) | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
17. Chlorine-Total residual, mg/L | Amperometric direct | 4500-Cl D-2000 | D1253-08 |
Amperometric direct (low level) | 4500-Cl E-2000 |
Iodometric direct | 4500-Cl B-2000 |
Back titration ether end-point15 | 4500-Cl C-2000 |
Colorimetric, DPD-FAS | 4500-Cl F-2000 |
Spectrophotometric, DPD | 4500-Cl G-2000 |
Ion selective electrode (ISE) | Note 16 |
17A. Chlorine-Free Available, mg/L | Amperometric direct | 4500-Cl D-2000 | D1253-08 |
Amperometric direct (low level) | 4500-Cl E-2000 |
DPD-FAS | 4500-Cl F-2000 |
Spectrophotometric, DPD | 4500-Cl G-2000 |
18. Chromium VI dissolved, mg/L | 0.45-micron Filtration followed by any of the following: |
AA chelation-extraction | 3111 C-1999 | I-1232-85 2 |
Ion Chromatography | 218.6, Rev. 3.3 (1994) | 3500-Cr C-2009 | D5257-03 | 993.23 |
Colorimetric (Diphenyl-carbazide) | 3500-Cr B-2009 | D1687-02(07) (A) | I-1230-85 2 |
19. Chromium—Total,4mg/L | Digestion,4followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 | D1687-02(07) (B) | 974.27,3 I-3236-85 2 |
AA chelation-extraction | 3111 C-1999 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D1687-02(07) (C) | I-3233-93 46 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003),68 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4020-05 70 |
Direct current plasma (DCP) 36 | D4190-08 | Note 34 |
Colorimetric (Diphenyl-carbazide) | 3500-Cr B-2009 |
20. Cobalt—Total,4mg/L | Digestion,4followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 or 3111 C-1999 | D3558-08 (A or B) | p. 37,9 I-3239-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D3558-08 (C) | I-4243-89 51 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4020-05 70 |
Direct current plasma (DCP) | D4190-08 | Note 34 |
21. Color, platinum cobalt units or dominant wavelength, hue, luminance purity | Colorimetric (ADMI) | Note 18 |
Colorimetric (Platinum cobalt) | 2120 B-2001 | I-1250-85 2 |
22. Copper—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 or 3111 C-1999 | D1688-07 (A or B) | 974.27,3 p. 37,9 I-3270-85 2 or I-3271-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D1688-07 (C) | I-4274-89 51 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4020-05 70 |
Direct current plasma (DCP) 36 | D4190-08 | Note 34 |
Colorimetric (Neocuproine) | 3500-Cu B-1999 |
Colorimetric (Bathocuproine) | 3500-Cu C-1999 | Note 19 |
23. Cyanide—Total, mg/L | Automated UV digestion/distillation and Colorimetry | Kelada-01.55 |
Segmented Flow Injection, In-Line Ultraviolet Digestion, followed by gas diffusion amperometry | D7511-09 |
Manual distillation with MgCl2, followed by any of the following: | 335.4, Rev. 1.0 (1993) 57 | 4500-CN−B-1999 or C-1999 | D2036-09(A), D7284-08 | 10-204-00-1-X 56 |
Flow Injection, gas diffusion amperometry | D2036-09(A) D7284-08 |
Titrimetric | 4500-CN−D-1999 | D2036-09(A) | p. 22 9 |
Colorimetry; Spectrophotometric, manual | 4500-CN−E-1999 | D2036-09(A) | I-3300-85 2 |
Colorimetry; Semi-Automated 20 | 335.4, Rev. 1.0 (1993) 57 | 10-204-00-1-X,56 I-4302-85 2 |
Ion Chromatography | D2036-09(A) |
Ion Selective Electrode | 4500-CN−F-1999 | D2036-09(A) |
24. Cyanide-Available, mg/L | Cyanide Amenable to Chlorination (CATC); Manual distillation with MgCl2, followed by Titrimetric or Spectrophotometric | 4500-CN−G-1999 | D2036-09(B) |
Flow injection and ligand exchange, followed by gas diffusion amperometry 59 | D6888-09 | OIA-1677-09 44 |
Automated Distillation and Colorimetry (no UV digestion) | Kelada-01 55 |
24.A Cyanide-Free, mg/L | Flow Injection, followed by gas diffusion amperometry | D7237-10 | OIA-1677-09 44 |
Manual micro-diffusion and colorimetry | D4282-02 |
25. Fluoride—Total, mg/L | Manual distillation,6followed by any of the following: | 4500-F−B-1997 |
Electrode, manual (ISE) | 4500-F−C-1997 | D1179-04 (B) |
Electrode, automated (ISE) | I-4327-85 2 |
Colorimetric, (SPADNS) | 4500-F−D-1997 | D1179-04 (A) |
Automated complexone | 4500-F−E-1997 |
Ion Chromatography | 300.0, Rev 2.1 (1993) and 300.1-1, Rev 1.0 (1997) | 4110 B-2000 or C-2000 | D4327-03 | 993.30 3 |
Capillary ion electrophoresis (CIE/UV) | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
26. Gold—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 |
Graphite furnace AA (GFAA) | 231.2 (Issued 1978)1 | 3113 B-2004 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
Direct current plasma (DCP) | Note 34 |
27. Hardness—Total, as CaCO3, mg/L | Automated colorimetric | 130.1 (Issued 1971)1 |
Titrimetric (EDTA) | 2340 C-1997 | D1126-02(07) | 973.52B,3 I-1338-85 2 |
Ca plus Mg as their carbonates, by inductively coupled plasma or AA direct aspiration. (See Parameters 13 and 33). | 2340 B-1997 |
28. Hydrogen ion (pH), pH units | Electrometric measurement | 4500-H+B-2000 | D1293-99 (A or B) | 973.41,3 I-1586-85 2 |
Automated electrode | 150.2 (Dec. 1982)1 | See footnote,21 I-2587-85 2 |
29. Iridium—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 |
Graphite furnace AA (GFAA) | 235.2 (Issued 1978)1 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 3125 B-2009 |
30. Iron—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 or 3111 C-1999 | D1068-05 (A or B) | 974.27,3 I-3381-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D1068-05 (C) |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14.3 |
Direct current plasma (DCP) 36 | D4190-08 | Note 34 |
Colorimetric (Phenanthroline) | 3500-Fe B-1997 | D1068-05 (D) | Note 22 |
31. Kjeldahl Nitrogen 5—Total, (as N), mg/L | Manual digestion 20 and distillation or gas diffusion, followed by any of the following: | 4500-NorgB-1997 or C-1997 and 4500-NH3B-1997 | D3590-02(06) (A) | I-4515-91 45 |
Titration | 4500-NH3C-1997 | 973.48 3 |
Electrode | 4500-NH3D-1997 or E-1997 | D1426-08 (B) |
Semi-automated phenate | 350.1 Rev 2.0 1993 | 4500-NH3 G-1997, 4500-NH3 H-1997 |
Manual phenate, salicylate, or other substituted phenols in Berthelot reaction based methods | 4500-NH3F-1997 | Note 60 |
Automated Methods for TKN that do not require manual distillation |
Automated phenate, salicylate, or other substituted phenols in Berthelot reaction based methods colorimetric (auto digestion and distillation) | 351.1 (Rev. 1978)1 | I-4551-78.8 |
Semi-automated block digestor colorimetric (distillation not required) | 351.2, Rev. 2.0 (1993) | 4500-NorgD-1997 | D3590-02(06) (B) | I-4515-91 45 |
Block digester, followed by Auto distillation and Titration | Note 39 |
Block Digester, followed by Flow injection gas diffusion (distillation not required) | Note 41 |
32. Lead—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 or 3111 C-1999. | D3559-08 (A or B) | 974.27,3 I-3399-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D3559-08 (D) | I-4403-89 51 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct current plasma (DCP) 36 | D4190-08 | Note 34 |
Voltametry11 | D3559-08 (C) |
Colorimetric (Dithizone) | 3500-Pb B-1997 |
33. Magnesium—Total,4 mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 | D511-08 (B) | 974.27,3 I-3447-85 2 |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
Direct current plasma (DCP) | Note 34 |
Ion Chromatography | D6919-09 |
34. Manganese—Total 4 , mg/L | Digestion 4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 | D858-07 (A or B) | 974.27,3 I-3454-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D858-07 (C) |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct current plasma (DCP) 36 | D4190-08 | Note 34 |
Colorimetric (Persulfate) | 3500-Mn B-1999 | 920.203 3 |
Colorimetric (Periodate) | Note 23 |
35. Mercury—Total,4 mg/L | Cold vapor, Manual | 245.1, Rev. 3.0 (1994) | 3112 B-2009 | D3223-02(07) | 977.22,3 I-3462-85 2 |
Cold vapor, Automated | 245.2 (Issued 1974)1 |
Cold vapor atomic fluorescence spectrometry (CVAFS) | 245.7 Rev. 2.0 (2005)17 | I-4464-01 71 |
Purge and Trap CVAFS | 1631E43 |
36. Molybdenum—Total,4mg/L | Digestion,4 followed by any of the following: |
AA direct aspiration (FLAA) | 3111 D-1999 | I-3490-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | I-3492-96 47 |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4471-97 50 |
Direct current plasma (DCP) | Note 34 |
37. Nickel—Total,4mg/L | Digestion 4 followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 or 3111 C-1999 | D1886-08 (A or B) | I-3499-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D1886-08 (C) | I-4503-89 51 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) 36 | 200.5, Rev 4.2 (2003) 68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14,3 I-4020-05 70 |
Direct current plasma (DCP) 36 | D4190-08 | Note 34 |
38. Nitrate (as N), mg/L | Ion Chromatography | 300.0, Rev 2.1 (1993) and 300.1-1, Rev 1.0 (1997) | 4110 B-2000 or C-2000 | D4327-03 | 993.30 3 |
Capillary ion electrophoresis (CIE/UV) | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
Ion Selective Electrode | 4500-NO3−D-2000 |
Nitrate-nitrite N minus Nitrite N (See parameters 39 and 40) | Note 62 |
39. Nitrate + nitrite (as N), mg/L | Cadmium reduction, Manual | 4500-NO3−E-2000 | D3867-04 (B) |
Cadmium reduction, Automated | 353.2, Rev. 2.0 (1993) | 4500-NO3−F-2000 | D3867-04 (A) | I-2545-90 51 |
Automated hydrazine | 4500-NO3−H-2000 |
Reduction/Colorimetric | Note 62 |
Ion Chromatography | 300.0, Rev 2.1 (1993) and 300.1-1, Rev 1.0 (1997) | 4110 B-2000 or C-2000 | D4327-03 | 993.30 3 |
Capillary ion electrophoresis (CIE/UV) | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
40. Nitrite (as N), mg/L | Spectrophotometric: Manual | 4500-NO2−B-2000 | Note 25 |
Automated (Diazotization) | I-4540-852, Note 62 |
Automated (*bypass cadmium reduction) | 353.2, Rev. 2.0 (1993) | 4500-NO3−F-2000 | D3867-04 (A) | I-4545-85 2 |
Manual (*bypass cadmium reduction) | 4500-NO3−E-2000 | D3867-04 (B) |
Ion Chromatography | 300.0, Rev 2.1 (1993) and 300.1-1, Rev 1.0 (1997) | 4110 B-2000 or C-2000 | D4327-03 | 993.30 3 |
Capillary ion electrophoresis (CIE/UV) | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
41. Oil and grease—Total recoverable, mg/L | Hexane extractable material (HEM): n-Hexane extraction and gravimetry | 1664 Rev. A; 1664 Rev. B 42 | 5520 B-2001 38 |
Silica gel treated HEM (SGT-HEM): Silica gel treatment and gravimetry | 1664 Rev. A; 1664 Rev. B42 | 5520 B-200138and 5520 F-200138 |
42. Organic carbon—Total (TOC), mg/L | Combustion | 5310 B-2000 | D7573-09 | 973.473, p. 14 24 |
Heated persulfate or UV persulfate oxidation | 5310 C- 2000 5310 D-2000 | D4839-03 | 973.473,, p. 14 24 |
43. Organic nitrogen (as N), mg/L | Total Kjeldahl N (Parameter 31) minus ammonia N (Parameter 4) |
44. Ortho-phosphate (as P), mg/L | Colorimetry, Ascorbic acid, Automated | 365.1, Rev. 2.0 (1993) | 4500-P F-1999 or G-1999 | 973.563, I-4601-85 2 |
Colorimetry, Ascorbic Acid, Manual single reagent | 4500-P E-1999 | D515-88(A) | 973.55 3 |
Colorimetry, Ascorbic Acid, Manual two reagent | 365.3 (Issued 1978)1 |
Ion Chromatography | 300.0, Rev 2.1 (1993) and 300.1-1, Rev 1.0 (1997) | 4110 B-2000 or C-2000 | D4327-03 | 993.30 3 |
Capillary ion electrophoresis ( CIE/UV) | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
45. Osmium—Total4, mg/L | Digestion4, followed by any of the following: |
AA direct aspiration (FLAA) | 3111 D-1999 |
Graphite furnace AA (GFAA) | 252.2 (Issued 1978)1 |
46. Oxygen, dissolved, mg/L | Winkler (Azide modification) | 4500-O B-2001, C-2001, D-2001, E-2001, F-2001 | D888-09 (A) | 973.45B 3, I-1575-78 8 |
Electrode | 4500-O G-2001 | D888-09 (B) | I-1576-78 8 |
Luminescence Based Sensor | D888-09 (C) | Note 63 Note 64 |
47. Palladium—Total,4 mg/L | Digestion 4, followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 |
Graphite furnace AA (GFAA) | 253.21(Issued 1978) |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 3125 B-2009 |
Direct current plasma (DCP) | Note 34 |
48. Phenols, mg/L | Manual distillation26, followed by any of the following: | 420.11(Rev. 1978) | 5530 B-2005 | D1783-01 |
Colorimetric (4AAP) manual | 420.11(Rev. 1978) | 5530 D-200527 | D1783-01 (A or B) |
Colorimetric (4AAP), Automated | 420.4 Rev. 1.0 (1993) |
49. Phosphorus (elemental), mg/L | Gas-liquid chromatography | Note 28 |
50. Phosphorus—Total, mg/L | Digestion20, followed by any of the following: | 4500-P B(5)-1999 | 973.55 3 |
Colorimetric, Manual ascorbic acid | 365.31(Issued 1978) | 4500-P E-1999 | D515-88 (A) |
Colorimetric, Automated ascorbic acid reduction | 365.1 Rev. 2.0 (1993) | 4500-P F-1999, G-1999, H-1999 | 973.56 3, I-4600-85 2 |
Colorimetric, Semi-automated block digestor (TKP digestion) | 365.41(Issued 1974) | D515-88 (B) | I-4610-91 48 |
51. Platinum—Total,4mg/L | Digestion 4 followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 |
Graphite furnace AA (GFAA) | 255.2 (Issued 1978)1 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 3125 B-2009 |
Direct current plasma (DCP) | Note 34 |
52. Potassium—Total,4mg/L | Digestion 4, followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 | 973.53 3, I-3630-85 2 |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.7, Rev. 4.4 (1994) | 3120 B-1999 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
Flame photometric | 3500-K B-1997 |
Electrode | 3500-K C-1997 |
Ion Chromatography | D6919-09 |
53. Residue—Total, mg/L | Gravimetric, 103-105°C | 2540 B-1997 | I-3750-85 2 |
54. Residue—filterable (TDS), mg/L | Gravimetric, 180°C | 2540 C-1997 | D5907-03 | I-1750-85 2 |
55. Residue—non-filterable (TSS), mg/L | Gravimetric, 103-105°C post washing of residue | 2540 D-1997 | D5907-03 | I-3765-85 2 |
56. Residue—settleable, mg/L | Volumetric, (Imhoff cone), or gravimetric | 2540 F-1997 |
57. Residue—Volatile, mg/L | Gravimetric, 550°C | 160.4 (Issued 1971)1 | 2540-E-1997 | I-3753-85 2 |
58. Rhodium—Total,4 mg/L | Digestion 4 followed by any of the following: |
AA direct aspiration (FLAA), or | 3111 B-1999 |
Graphite furnace AA (GFAA) | 265.2 (Issued 1978)1 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 3125 B-2009 |
59. Ruthenium—Total,4mg/L | Digestion4 followed by any of the following: |
AA direct aspiration (FLAA), or | 3111 B-1999 |
Graphite furnace AA (GFAA) | 267.21 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8 | 3125 B-2009 |
60. Selenium—Total,4mg/L | Digestion4, followed by any of the following: |
Graphite furnace AA (GFAA) | 3113 B-2004 | D3859-08 (B) | I-4668-98 49 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES)36 | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3, I-4020-05 70 |
AA gaseous hydride | 3114 B-2009, or 3111 C-2009 | D3859-08 (A) | I-3667-85 2 |
61. Silica—Dissolved,37mg/L | 0.45-micron filtration followed by any of the following: |
Colorimetric, Manual | 4500-SiO2C-1997 | D859-05 | I-1700-85 2 |
Colorimetric, Automated (Molybdosilicate) | 4500-SiO2E-1997 or F-1997 | I-2700-85 2 |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
62. Silver—Total,4, 31 mg/L | Digestion4, 29, followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 or 3111 C-1999 | 974.27 3, p. 37 9, I-3720-85 2 |
Graphite furnace AA (GFAA) | 3113 B-2004 | I-4724-89 51 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3, I-4471-97 50 |
Direct current plasma (DCP) | Note 34 |
63. Sodium—Total,4mg/L | Digestion 4 , followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 | 973.54 3, I-3735-85 2 |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
Direct current plasma (DCP) | Note 34 |
Flame photometric | 3500-Na B-1997 |
Ion Chromatography | D6919-09 |
64. Specific conductance, micromhos/cm at 25 °C | Wheatstone bridge | 120.11(Rev. 1982) | 2510 B-1997 | D1125-95(99) (A) | 973.40 3, I-2781-85 2 |
65. Sulfate (as SO4), mg/L | Colorimetric, Automated | 375.2, Rev. 2.0 (1993) | 4500-SO42-F-1997 or G-1997 |
Gravimetric | 4500-SO42-C-1997 or D-1997 | 925.54 3 |
Turbidimetric | 4500-SO42-E-1997 | D516-07 |
Ion Chromatography | 300.0, Rev 2.1 (1993) and 300.1-1, Rev 1.0 (1997) | 4110 B-2000 or C-2000 | D4327-03 | 993.30 3, I-4020-05 70 |
Capillary ion electrophoresis ( CIE/UV) | 4140 B-1997 | D6508-00(05) | D6508, Rev. 2 54 |
66. Sulfide (as S), mg/L | Sample Pretreatment | 4500-S2−B, C-2000 |
Titrimetric (iodine) | 4500-S2−F-2000 | I-3840-85 2 |
Colorimetric (methylene blue) | 4500-S2−D-2000 |
Ion Selective Electrode | 4500-S2−G-2000 | D4658-08 |
67. Sulfite (as SO3), mg/L | Titrimetric (iodine-iodate) | 4500-SO32−B-2000 |
68. Surfactants, mg/L | Colorimetric (methylene blue) | 5540 C-2000 | D2330-02 |
69. Temperature, °C | Thermometric | 2550 B-2000 | Note 32 |
70. Thallium-Total,4 mg/L | Digestion4, followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 |
Graphite furnace AA (GFAA) | 279.21(Issued 1978) | 3113 B-2004 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.7, Rev. 4.4 (1994); 200.5 Rev. 4.2 (2003)68 | 3120 B-1999 | D1976-07 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3, I-4471-97 50 |
71. Tin-Total,4mg/L | Digestion4, followed by any of the following: |
AA direct aspiration (FLAA) | 3111 B-1999 | I-3850-78 8 |
Graphite furnace AA (GFAA) | 3113 B-2004 |
Stabilized temperature GFAA (STGFAA) | 200.9, Rev. 2.2 (1994) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
72. Titanium-Total,4mg/L | Digestion4followed by any of the following: |
AA direct aspiration (FLAA) | 3111 D-1999 |
Graphite furnace AA (GFAA) | 283.21(Issued 1978) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.7, Rev. 4.4 (1994) |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 |
Direct current plasma (DCP) | Note 34 |
73. Turbidity, NTU53 | Nephelometric | 180.1, Rev. 2.0 (1993) | 2130 B-2001 | D1889-00 | I-3860-85 2 Note 65 Note 66 Note 67 |
74. Vanadium-Total,4mg/L | Digestion4, followed by any of the following: |
AA direct aspiration (FLAA) | 3111 D-1999 |
Graphite furnace AA (GFAA) | 3113 B-2004 | D3373-03(07) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES) | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.143, I-4020-05 70 |
Direct current plasma (DCP) | D4190-08 | Note 34 |
Colorimetric (Gallic Acid) | 3500-V B-1997 |
75. Zinc-Total4, mg/L | Digestion 4, followed by any of the following: |
AA direct aspiration (FLAA) 36 | 3111 B-1999 or 3111 C-1999 | D1691-02(07) (A or B) | 974.27 3, p. 37 9, I-3900-85 2 |
Graphite furnace AA (GFAA) | 289.21(Issued 1978) |
Inductively coupled plasma−atomic emission spectrometry (ICP/AES)36 | 200.5, Rev 4.2 (2003)68; 200.7, Rev. 4.4 (1994) | 3120 B-1999 | D1976-07 | I-4471-97 50 |
Inductively coupled plasma−mass spectrometry (ICP/MS) | 200.8, Rev. 5.4 (1994) | 3125 B-2009 | D5673-05 | 993.14 3 I-4020-05 70 |
Direct current plasma (DCP)36 | D4190-08 | Note 34 |
Colorimetric (Zincon) | 3500 Zn B-1997 | Note 33 |
76. Acid Mine Drainage | 1627 69 |