ASTM D2036-09(2022)

1.1''These test methods cover the determination of cyanides in water. The following test methods are included:

1.2''Cyanogen halides may be determined separately.

1.3''These test methods do not distinguish between cyanide ions and metallocyanide compounds and complexes. Furthermore, they do not detect the cyanates. Cyanates can be determined using ion chromatography without digestion.

1.4''The cyanide in cyanocomplexes of gold, platinum, cobalt and some other transition metals is not completely recovered by these test methods. Refer to Test Method D6994 for the determination of cyanometal complexes.

1.5''Cyanide from only a few organic cyanides are recovered, and those only to a minor extent.

1.6''Part or all of these test methods have been used successfully with reagent water and various waste waters. It is the user's responsibility to assure the validity of the test method for the water matrix being tested.

1.7''The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.8''This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environme

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