Technical Support

Chemetrics Technical Data Sheets

Total Alkalinity

Method: Acid Titrant with pH Indicator

APHA Standard Methods, 21st ed., Method 2320 B (2005); ASTM D 1067-02, Acidity or Alkalinity of Water, Test Method B; USEPA Methods for Chemical Analysis of Water and Wastes, method 310.1 (1983)

Ammonia

Direct Nesslerization Method

ASTM D 1426-03, Ammonia Nitrogen in Water, Test Method A. APHA Standard Methods, 18th ed., Method 4500-NH3 C (1992).

Bromine

DDPD Method

The DDPD methodology was developed by CHEMetrics, Inc.

Carbon Dioxide (dissolved)

Method: Caustic Titrant with pH Indicator

APHA Standard Methods, 21st ed., Method 4500-CO2 C (2005). ASTM D 513-82, Total and Dissolved Carbon Dioxide in Water, Test Method E.

Chloride

Mercuric Nitrate Method

APHA Standard Methods, 21st ed., method 4500-Cl- C (2005); ASTM D 512-04, Chloride Ion in Water, Test Method A; EPA Methods for Chemical Analysis of Water and Wastes, method 325.3 (1983)

Chlorine (free & total)

DDPD Method

The DDPD methodology was developed by CHEMetrics, Inc.

Chlorine Dioxide

DDPD Method

APHA Standard Methods, 20th ed., Method 4500-ClO2 D (1998) and 21st ed., Method 4500-Cl G (2005). EPA Methods for Chemical Analysis of Water and Wastes, Method 330.5 (1983)

Chromate (hexavalent)

Diphenylcarbazide Method

APHA Standard Methods, 21st ed., Method 3500-Cr B (2005); ASTM D 1687-02, Chromium in Water, Test Method A.

Copper

Bathocuproine Method

APHA Standard Methods, 21st ed., Method 3500-Cu C (2005).

Cyanide (free)

Isonicotinic-Barbituric Acid Method

Nagashima, S., “Spectrophotometric Determination of Cyanide with Isonicotinic Acid and Barbituric Acid,” International Journal of Environ. Anal. Chem., Vol. 10, pp. 99-106, 1981.

Detergents (Anionic Surfactants, MBAS)

Methylene Blue Method

APHA Standard Methods, 21st ed., method 5540 C (2005). EPA Methods for Chemical Analysis of Water and Wastes, method 425.1 (1983). ASTM D 2330-02, Methylene Blue Active Substances.

Filming Amine (aliphatic amine)

Methyl Orange Method

ASTM D 2327-80, Mono- and Dioctadecylamines in Water (1989).

Formaldehyde

Purpald® Method

Purpald® developed by Aldrich Chemical Co.

Glycol

Purpald®-Periodate Method

Purpald® developed by Aldrich Chemical Company. Fritz, James S. and Schenk, George H. Quantitative Analytical Chemistry, 4th ed., p. 277, 1979.

Hydrazine

PDMAB Method

ASTM D 1385-01, Hydrazine in Water. L.C. Thomas and G.J. Chamberlin, Colorimetric Chemical Analytical Method, 8th ed., pp. 194-195, Method I (1974).

Hydrogen Peroxide

DDPD Method

The DDPD methodology was developed by CHEMetrics, Inc.

Hydrogen Peroxide

Ferric Thiocyanate Method

D.F. Boltz and J.A. Howell, eds., Colorimetric Determination of Nonmetals, 2nd. Ed., Vol. 8, p. 304 (1978).

Iron (total, soluble, ferrous)

Phenanthroline Method

APHA Standard Methods, 21st ed., Method 3500-Fe B (2005). ASTM D 1068-77, Iron in Water, Test Method A.

Nitrite

Azo Dye Formation Method

APHA Standard Methods, 21st ed., Method 4500-NO2- B (2005). USEPA Methods for Chemical Analysis of Water and Wastes, Method 354.1 (1983).

Nitrite

Ceric Sulfate Titrimetric Method

The ceric sulfate methodology was developed by CHEMetrics, Inc.

Oxygen (dissolved)

Indigo Carmine Method

ASTM D 888-87, Dissolved Oxygen in Water, Test Method A. Gilbert, T.W., Behymer, T.D., Castaneda, H.B., “Determination of Dissolved Oxygen in Natural and Wastewaters,” American Laboratory, March 1982, pp. 119-134.

Oxygen (dissolved)

Rhodazine D Method

Developed by CHEMetrics, Inc. ASTM Power Plant Manual, 1st ed. p. 169 (1984). ASTM D 5543-94 (2005), Low Level Dissolved Oxygen in Water, Test Method A. Department of the Navy, Final Report of NAVSECPHILADIV Project A-1598, Evaluation of CHEMetrics Feedwater Dissolved Oxygen Test Kit (1975).

Ozone

DDPD Method

The DDPD methodology was developed by CHEMetrics, Inc.

Ozone

Indigo Method

Bader, H. and J. Hoigne, “Determination of Ozone in Water by the Indigo Method,” Water Research Vol., 15, pp. 449-456, 1981. APHA Standard Methods, 21st ed., method 4500-O3 B (2005).

Persulfate

Ferric Thiocyanate Method

D.F. Boltz and J.A. Howell, eds., Colorimetric Determination of Nonmetals, 2nd. Ed., Vol. 8, p. 304 (1978).

Phenols

4-Aminoantipyrine Method

APHA Standard Methods, 14th ed., Method 510 C (1975). ASTM D 1783-01, Phenolic Compounds in Water, Test Method B. USEPA Methods for Chemical Analysis of Water and Wastes, Method 420.1 (1983).

Phosphate (reactive, ortho)

Stannous Chloride Method

APHA Standard Methods, 21st ed., Method 4500-P D (2005).

Phosphate (reactive, ortho)

Vanadomolybdophosphoric Acid Method

APHA Standard Methods, 21st ed., method 4500-P C (2005). ASTM D 515-82, Phosphorous in Water, Test Method C.

Silica

Heteropoly Blue Method

APHA Standard Methods, 21st ed., Method 4500-SiO2 D (2005); USEPA Methods for Chemical Analysis of Water and Wastes, method 370.1 (1983); ASTM D859-05, Silica in Water

Sulfate

Turbidimetric Method

APHA Standard Methods, 15th ed., Method 426 C (1980); EPA Methods for Chemical Analysis of Water and Wastes, method 375.4 (1983); ASTM 516-02, Sulfate Ion in Water.

Sulfide

Methylene Blue Method

APHA Standard Methods, 21st ed., Method 4500-S2- D (2005). EPA Methods for Chemical Analysis of Water and Wastes, Method 376.2 (1983).

Sulfite

Iodometric Method

ASTM D 1339-84, Sulfite Ion in Water, Test Method C. APHA Standard Methods, 21st ed., Method 4500-SO3
2- B (2005). USEPA Methods for Chemical Analysis of Water and Wastes, Method 377.1 (1983).

Zinc

Zincon Method

APHA Standard Methods, 21st ed., Method 3500-Zn B (2005). ASTM D 1691-84, Zinc in
Water, Test Method A.

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