ASTM UOP682 - 84 - Total Cyanide in Refinery Waters by Visible Spectrophotometry

ASTM UOP682 - 84

Total Cyanide in Refinery Waters by Visible Spectrophotometry

Status : Current   Published : July 2002



This method is for determining cyanide in aqueous solutions in the presence of large quantities of sulfide. The lower limit of detection in the presence of 1.0% or 0.1% sulfide is 0.2 or 0.02 mass-ppm cyanide, respectively. The upper limit of detection can range from 200 ppm to 10,000 ppm cyanide depending on the size of the sample selected for analysis. Thiosulfate above a level of 0.1% will interfere with the test. Significant amounts of sulfite, thiocyanate, aldehydes, amines and other materials can also interfere with the analysis. The instability of cyanide in the presence of air requires that the analysis be performed as soon as possible after sampling.

Standard NumberASTM UOP682 - 84
TitleTotal Cyanide in Refinery Waters by Visible Spectrophotometry
Publication Date26 July 2002
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
File Size78 KB

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