ASTM-D4165:2012 Edition

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D4165-06(2012) Standard Test Method for Cyanogen Chloride in Water

Published By	Publication Date	Number of Pages
ASTM	2012	4

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Categories: 13.060.50 - Examination of water for chemical substances, ASTM

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Description

ASTM D4165-06-Reapproved2012

Historical Standard: Standard Test Method for Cyanogen Chloride in Water

ASTM D4165

Scope

1.1 This test method covers the determination of cyanogen chloride in water. Cyanogen chloride is normally present only at very low concentrations; it is a very labile and sparsely soluble gaseous compound. Water samples may contain cyanogen chloride after the chlorination of waste waters containing cyanide or thiocyanate compounds.

1.2 Cyanogen chloride is unstable. A quick test using a spot plate or comparator as soon as the sample is collected may be the best test, reducing the loss of cyanogen chloride during the time lapse between sampling and analysis. (See Fig. 1 for a typical decay curve for cyanogen chloride in a solution.)

1.3 This test method has been used successfully with reagent water. The analyst is responsible for determining whether the test method is applicable to the water matrix being tested. Reference is made to Test Method D of Test Methods D2036 which is based on similar chemical reactions and has been evaluated by collaborative testing in this matrix.

1.4 The lower limit of detectability is 0.005 mg CN ⁻/L.

1.5 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 Note 1 and Note 2 and Section 9.

FIG. 1 Cyanogen Chloride Stability

Keywords

cynanide; cyanogen chloride; pyridine-barbituric acid; spectrophotometer

ICS Code

ICS Number Code 13.060.50 (Examination of water for chemical substances)

DOI: 10.1520/D4165-06R12

Additional information

Standard Title	D4165-06(2012) Standard Test Method for Cyanogen Chloride in Water
Published Code	ASTM
Publication Date	2012
Pages Count	4
ICS Codes	13.060.50 - Examination of water for chemical substances