EPA Method 335.1

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View Actual EPA Method 335.1 (PDF File)


EPA Method 335.1:
Cyanides, amenable to chlorination. Official Name: Cyanides, Amenable to Chlorination (Titrimetric; Spectrophotometric)

Summary:
A portion of sample is dechlorinated at pH > 11 to decompose cyanides amenable to chlorination (CATC). Cyanide levels in the chlorinated sample and unchlorinated sample are determined using a total cyanide procedure (e.g., EPA Method 335.2). CATC is determined by difference of cyanide concentrations in the unchlorinated and chlorinated sample.

Scope:
This method determines cyanides amenable to chlorination (CATC) in drinking, surface, and saline waters; domestic and industrial wastes.

Citation:
Methods for the Chemical Analysis of Water and Wastes (MCAWW) (EPA/600/4-79/020)

Interferences:
None given.

QC Requirements:
None given.

Maximum Holding Time:
None given.

Media:
WATER

Subcategory:
Inorganic

Concentration:
See EPA Method 335.2

Precision:
-

Detection:
-

Revision Number:
Issued 1974

Test Description:
Cyanides, Available

Report Number:
600/4-79-020

Instrument used for this test:
None