ISO 17380:2013 PDF

Scope: This International Standard specifies a method for the photometric determination of the total cyanide and easily-liberatable cyanide content in soil using automated distillation/continuous-flow analysis. The International Standard applies to all types of soil with cyanide contents above 1 mg/kg on the basis of dry matter, expressed as cyanide ion. NOTE Sulfide concentrations in the sample higher than 40 mg/kg dry matter cause interference. This effect can be recognized by the split peaks and as a slow decrease of the detector signal and can only be prevented by diluting the sample extract.

ISO 17380:2013 Referenced Document

ISO 11262 Soil quality - Determination of total cyanide
ISO 11465 Soil quality; determination of dry matter and water content on a mass basis; gravimetric method; technical corrigendum 1
ISO 14507:2003 Soil quality - Pretreatment of samples for determination of organic contaminants
ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 9297 Water quality; determination of chloride; silver nitrate titration with chromate indicator (Mohr's method)

2013 ISO 17380:2013 Soil quality - Determination of total cyanide and easily liberatable cyanide - Continuous-flow analysis method
2004 ISO 17380:2004 Soil quality - Determination of total cyanide and easily released cyanide - Continuous-flow analysis method