Standard Svensk standard · SS-ISO 11262:2013

Markundersökningar - Bestämning av total cyanid (ISO 11262:2011, IDT)

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Standard Svensk standard · SS-ISO 11262:2013

Markundersökningar - Bestämning av total cyanid (ISO 11262:2011, IDT)
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Omfattning
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.

Ämnesområden

Kemisk karaktäristik hos jord (13.080.10) Hydrologiska egenskaper hos jord (13.080.40)


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Standard Svensk standard · SS-ISO 11262:2013

Markundersökningar - Bestämning av total cyanid (ISO 11262:2011, IDT)
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Pris: 1 013 SEK
standard ikon pdf

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standard ikon

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Produktinformation

Språk: Engelska

Framtagen av: Karaktärisering av avfall, mark och slam, SIS/TK 535

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

Artikelnummer: STD-99506

Utgåva: 2

Fastställd: 2013-09-19

Antal sidor: 32

Ersätter: SS-ISO 11262:2004