BS EN 62321-7-2:2017 - Determination of certain substances in electrotechnical products. Hexavalent chromium. Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method

BS EN 62321-7-2:2017

Determination of certain substances in electrotechnical products. Hexavalent chromium. Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method

Status : Current   Published : August 2017

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HARDCOPY



IEC 62321-7-2:2017 describes procedures to measure hexavalent chromium, Cr(VI), quantitatively in samples of polymers and electronics. This method employs organic solvent to dissolve or swell the sample matrix, followed by an alkaline digestion procedure to extract Cr(VI) from samples. Studies have shown that organic/alkaline solution is more effective than acidic solution in extracting Cr(VI) from soluble and insoluble samples. Minimal reduction of Cr(VI) to Cr(III) or oxidation of Cr(III) to Cr(VI) occurs under alkaline conditions. The first edition of IEC 62321:2008 was a ‘stand-alone’ standard that included an introduction, an overview of test methods, a mechanical sample preparation as well as various test method clauses. This first edition of IEC 62321-7-2 is a partial replacement of IEC 62321:2008, forming a structural revision and generally replacing Annex C. IEC 62321-7-2 is the final replacement part of the corresponding clauses in IEC 62321:2008.




Standard NumberBS EN 62321-7-2:2017
TitleDetermination of certain substances in electrotechnical products. Hexavalent chromium. Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method
StatusCurrent
Publication Date18 August 2017
Normative References(Required to achieve compliance to this standard)IEC 62321-1:2013, ISO 3696:1987, EN ISO 3696, EN 62321-1:2013
Informative References(Provided for Information)EN 62321-2, EN 62321:2009, EN ISO 648, ISO 648:2008, IEC 62321-5:2013, IEC 62321:2008, ASTM E1272 - 02(2012)
ReplacesBS EN 62321:2009
International RelationshipsEN 62321-7-2:2017,IEC 62321-7-2:2017
Draft Superseded By11/30241791 DC
DescriptorsChromium, Electronic equipment and components, Cadmium, Lead, Dangerous materials, Determination of content, Electrical components, Biphenyl, Flame retardants, Environmental engineering, Electrical equipment, Chemical analysis and testing, Mercury
ICS31.020
71.040.50
Title in FrenchDétermination de certaines substances dans les produits électrotechniques Chrome hexavalent. Détermination du chrome hexavalent (Cr(VI)) dans les polymères et les produits électroniques par méthode colorimétrique
Title in GermanVerfahren zur Bestimmung von bestimmten Substanzen in Produkten der Elektrotechnik Bestimmung von sechswertigem Chrom (Cr(VI)) in Polymeren und Elektronik durch kolorimetrische Verfahren
CommitteeGEL/111
ISBN978 0 580 74418 1
PublisherBSI
FormatA4
DeliveryYes
Pages24
File Size1.116 MB
Price£182.00


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