SS-ISO-11262 Soil quality - Determination of total cyanide (ISO 11262:2011, IDT)

SS-ISO-11262 - 2013 EDITION - CURRENT
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This International Standard is applicable to as-received (feld-moist) samples and specifies two different procedures for the liberation of cyanide from the soil:- direct liberation of hydrogen cyanide using orthophosphoric acid (normative);- extraction with sodium hydroxide solution and subsequent liberation using orthophosphoric acid (informative, see Annex B).The liberated cyanide is determined either by a photometric method or a titrimetric method using an indicator.The method is applicable to all types of soil.Under the conditions specified in this International Standard, the lower limit of application is 0,5 mg/kg of total cyanide (expressed on the as-received basis) for photometric determination and 10 mg/kg for titrimetric determination.NOTE Using the alkaline extraction followed by liberation using phosphoric acid, the lower limit of application is 1 mg/kg of total cyanide (expressed on the as-received basis) for photometric determination and 30 mg/kg for titrimetric determination.

To find similar documents by classification:

13.080.10 (Chemical characteristics of soils)

13.080.40 (Hydrological properties of soils)

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Designation Name

SS-ISO 11262:2013

Revision Level

2013 EDITION

Status

Current

Publication Date

Sept. 19, 2013

Language(s)

English

Page Count

32

International Equivalent

ISO 11262:2011(IDT)