|Water Committee Issues Significant New Cyanide-Monitoring Standard
A task group of
Subcommittee D19.06, Methods for Analysis for Organic Substances in Water, has developed new ASTM D 6888, Standard Test Method for Available Cyanide with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection.
The method detects the cyanides that are free and metal cyanide complexes that are easily dissociated into free cyanide ions in water, says principal author and task group chair, John Sebroski, environmental chemist, Environmental Testing Services, Bayer Polymers LLC, New Martinsville, W.Va. The new standard does not rely on distillation techniques and does not suffer from many of the interference issues that are associated with other cyanide methods. The standard will be useful to monitor cyanide in a variety of water matrices, including natural water and wastewater effluent samples.
According to Sebroski, the subcommittee task group that developed new Standard D 6888 included representatives of instrument vendors, U.S. Environmental Protection Agency, industry, and environmental laboratories. The subcommittee is part of ASTM Committee D19 on Water.
For further technical information, contact Sebroski (phone: 304/451-2227). ASTM Committee D19 on Water meets Jan. 25-29 in Cocoa Beach, Fla. For membership or meeting details, contact Leonard Morrissey, Jr., manager, Technical Committee Operations, ASTM International (phone: 610/832-9719). //
Copyright 2003, ASTM