SIST ISO 6503:1996

Oznaka standarda: SIST ISO 6503:1996
Koda projekta: 012880
Organizacija: SIST
Naslov (angleški): Paints and varnishes -- Determination of total lead -- Flame atomic absorption spectrometric method
Naslov (slovenski): Barve in laki - Določanje skupne vsebnosti svinca - Plamenska atomska absorpcijska spektrometrijska metoda
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SIST ISO 6503:1996 angleški jezik Active SIST-B: 38.72 EUR
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Tehnični odbor: IBLP - Barve, laki in premazi
ICS: 87.040
Status: Objavljen
Objavljen: 01-maj-1996
Refer. št. objave: Sporocila 1996-05-01
Referenčna oznaka: ISO 6503:1984
Področje projekta (angleško): 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.

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