ISO 6503:1984

Status : Published (Under review)

This standard was last reviewed and confirmed in 2018. Therefore this version remains current.

	Format	Language
std 1 40	PDF
std 2 40	Paper

CHF40

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Abstract

The method is principle to coating materials having lead contents in the range of about 0,01 % (m/m) to 2 % (m/m), may also be applicable to products with a total lead content of more than 2 % (m/m) when the requirements of precision does not exceed the specified values. two methods are given. The principle of the dry ashing method consists in evaporation of a test portion to dryness and ashing at 475 C and extraction of any lead in the residue with hydrochloric acid; that of the wet oxidation method consists in wet oxidation of a test portion with a mixture of sulfuric acid and hydrogen peroxide or with sulfuric acid and nitric acid and extraction of any lead in the residue with EDTA and ammonia solution.

General information

Status
: Published

Publication date
: 1984-10

Stage
: International Standard under systematic review [90.20]
Edition
: 1

Number of pages
: 6
Technical Committee :
ISO/TC 256

ICS :
87.040
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