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Standard Test Methods for Bleeding of Pigments
Automaticky preložený názov:
Štandardné skúšobné metódy pre krvácanie Pigmenty
NORMA vydaná dňa 1.11.2012
Označenie normy: ASTM D279-02(2012)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.11.2012
Kód tovaru: NS-21485
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
bleeding pigments, migration, overstripe, pigment bleeding test, ICS Number Code 87.060.10 (Pigments and extenders)
Significance and Use | ||||
4.1 Test Method A determines the amount of color produced when the pigment is in direct contact with a selected solvent such as toluene. It is useful as a rapid, easily conducted test of the general bleeding characteristics of pigments. 4.2 Test Method B determines the amount of color migration into a white film applied over a base coat containing the pigment. It may give a more practical evaluation of whether a pigment will meet specific requirements for bleed resistance. 4.3 Both Test Method A and Test Method B measure the extent of bleed. |
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1. Scope | ||||
1.1 These test methods cover procedures for determining the bleeding characteristics of dry pigments by direct solvent extraction of the pigment and by overstriping a film with a white coating and observing for the color migration from the base coat containing the pigment. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety problems, 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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