ASTM-D6888 Standard Test Method for Available Cyanides with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection

ASTM-D6888 - 2016 R23 EDITION - CURRENT
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Standard Test Method for Available Cyanides with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection
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Scope

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 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.

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 8.

Keywords

amperometry; available cyanide; syanide; cyanide amenable to chlorination; flow injection analysis; free cyanide; gas diffusion membrane; ligand exchange; pervaporation; silver electrode; weak acid dissociable cyanide; ICS Number Code 17.120.10 (Flow in closed conduits)

To find similar documents by ASTM Volume:

11.02 (Water (II))

To find similar documents by classification:

17.120.10 (Flow in closed conduits Gas meters in buildings, see 91.140.40 Water meters in buildings, see 91.140.60)

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Document Number

ASTM-D6888-16R23

Revision Level

2016 R23 EDITION

Status

Current

Modification Type

New

Publication Date

Dec. 12, 2023

Document Type

Test Method

Page Count

8 pages

Committee Number

D19.06