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ASTM D 6888 : 2009

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Available Cyanide with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection
Available format(s)

Hardcopy , PDF

Superseded date

12-15-2023

Language(s)

English

Published date

10-01-2009

1.1 This method is used to determine the concentration of available inorganic cyanide in an aqueous wastewater or effluent. The method detects the cyanides that are free (HCN and CN-) and metal-cyanide complexes that are easily dissociated into free cyanide ions. The method does not detect the less toxic strong metal-cyanide complexes, cyanides that are not amenable to chlorination.

1.2 Total cyanide can be determined for samples that have been distilled as described in Test Methods D 2036, Test Method A, Total Cyanides after Distillation. The cyanide complexes are dissociated and absorbed into the sodium hydroxide capture solution, which can be analyzed with this test method; therefore, ligand exchange reagents from Sections 8.12 and 8.13 would not be required when determining total cyanide after distillation.

1.3 This procedure is applicable over a range of approximately 2 to 400 μg/L (parts per billion) available cyanide. Higher concentrations can be analyzed by dilution or lower injection volume.

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

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 2 and Section 9.

Committee
D 19
DocumentType
Test Method
Pages
7
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 7365 : 2009 : REV A : R2015 Standard Practice for Sampling, Preservation and Mitigating Interferences in Water Samples for Analysis of Cyanide
ASTM D 6696 : 2016 Standard Guide for Understanding Cyanide Species
ASTM D 7284 : 2013 : R2017 Standard Test Method for Total Cyanide in Water by Micro Distillation followed by Flow Injection Analysis with Gas Diffusion Separation and Amperometric Detection
ASTM E 800 : 2014 Standard Guide for Measurement of Gases Present or Generated During Fires
ASTM E 1600 : 2015 Standard Test Methods for Determination of Gold in Cyanide Solutions
ASTM D 7237 : 2018 Standard Test Method for Free Cyanide and Aquatic Free Cyanide with Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection
ASTM D 7572 : 2015 Standard Guide for Recovery of Aqueous Cyanides by Extraction from Mine Rock and Soil
ASTM D 2036 : 2009 : R2015 Standard Test Methods for Cyanides in Water

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