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Normas ASTM – AENOR
ASTM D3624-85a(2015)

ASTM D3624-85a(2015)

Standard Test Method for Low Concentrations of Mercury in Paint by Atomic Absorption Spectroscopy

Fecha:
2016-12-27 /Active
Significance and Use:

4.1 The permissible level of heavy metals in certain coatings is specified by governmental regulatory agencies. This test method provides a fully documented procedure for determining low concentrations of mercury present in both water and solvent-reducible coatings to determine compliance.

Scope:

1.1 This test method covers the determination of the content of mercury in the range between 10 and 1000 ppm (mg/kg) present in liquid coatings, coatings vehicles, or in dried films obtained from previously coated substrates. There is no reason to believe that higher levels could not be determined by this test method, provided that appropriate dilutions and adjustments in specimen size and reagent quantities are made.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 7 and 9.1.1.

Keywords:
AAS; low concentration of mercury in paints; mercury;
38,43
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