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ASTM D2036-09(2015)

Historical Reaffirmation

Standard Test Methods for Cyanides in Water

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

 

Sections

Test Method A
 Total Cyanides after Distillation

12 – 18

Test Method B
 Cyanides Amenable to Chlorination2
 by Difference

19 – 25

Test Method C
 Weak Acid Dissociable Cyanides

26 – 32

Test Method D
 Cyanides Amenable to Chlorination without
 Distillation (Short-Cut Method)

33 – 39

1.2 Cyanogen halides may be determined separately.

Note 1: Cyanogen chloride is the most common of the cyanogen halide complexes as it is a reaction product and is usually present when chlorinating cyanide-containing industrial waste water. For the presence or absence of CNCl, the spot test method given in Annex A1 can be used.

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.

Note 2: The cyanate complexes are decomposed when the sample is acidified in the distillation procedure.

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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in 5.1, 8.8, 8.18, Section 9, 11.3, and 16.1.9.


5.1 Cyanide is highly toxic. Regulations have been established to require the monitoring of cyanide in industrial and domestic wastes and in surface waters (Appendix X1).

5.2 Test Method D is applicable for natural water and clean metal finishing or heat treatment effluents. It may be used for process control in wastewater treatment facilities providing its applicability has been validated by Test Method B or C.

5.3 The spot test outlined in Annex A1 can be used to detect cyanide and thiocyanate in water or wastewater, and to approximate its concentration.

SDO ASTM: ASTM International
Document Number D2036
Publication Date July 15, 2015
Language en - English
Page Count 20
Revision Level 09(2015)
Supercedes
Committee D19.06
Publish Date Document Id Type View
Oct. 1, 2009 D2036-09 Revision
Feb. 15, 2006 D2036-06 Revision
July 10, 1998 D2036-98 Revision
Not Available D2036-91 Revision
May 1, 2022 D2036-09R22 Reaffirmation
July 15, 2015 D2036-09R15 Reaffirmation