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Standard Test Method for Clay and Zeolite in Powdered Laundry Detergents by Atomic Absorption
NORMA vydaná dňa 1.1.2017
Označenie normy: ASTM D5547-95(2017)
Dátum vydania normy: 1.1.2017
Kód tovaru: NS-674344
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
This test method covers atomic absorption tests applicable to powdered laundry detergents containing clay and zeolite. The test sample is fused with lithium metaborate, dissolved in acid, its silicon and aluminum content measured by atomic absorption, and the silicon/aluminum (Si/Al) ratio calculated. The clay and zeolite content of the test sample is calculated from the Si/Al ratio of the test sample and the Si/Al ratio of the clay and zeolite expected in the test sample. This test method is based on the linear relationship between the relative composition (or ratio) of clay/zeolite in detergent powders and the Si/Al ratio of such detergents.
Keywords:
aluminum, atomic absorption, clay, ICP, powdered laundry detergents, silicon, zeolite ,, ICS Number Code 71.100.40 (Surface active agents)
1. Scope | ||
1.1 This test method covers atomic absorption tests applicable to powdered laundry detergents containing clay and zeolite.2 1.2 The values stated in SI units are to be regarded as the standard. 1.3 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. |
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2. Referenced Documents | ||
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