HG/T 4212-2011Phosphorus oxychloride for industrial use - Determination of heavy metal content - Visual colorimetric method (English PDF)

HG/T 4212-2011 is the English-translated version of 工业用三氯氧磷 重金属含量的测定 目视比色法.

Heavy metals in phosphorus oxychloride for industrial use are determined by the method laid down in HG/T 4212-2011, one of the recommended chemical industry standards of China. The determination is made by visual colorimetry. It applies to industrial phosphorus oxychloride in which the heavy metal content is 0.0001% or more. The standard forms part of a set of analytical methods for phosphorus oxychloride and phosphorus trichloride, all placed under the Chinese classification G13 and the international heading 71.060.50. The quoted documents are GB/T 602, GB/T 603 and GB/T 6682. Issued on 20 December 2011, it has applied since 1 July 2012.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

HG/T 5043-2016|HG/T 4209-2011|HG/T 4211-2011|HG/T 4213-2011|GB/T 33336-2016|GB/T 23772-2009

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