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Standard Test Method for Measuring Apparent pH of Electrocoat Baths
Automaticky preložený názov:
Štandardná skúšobná metóda pre meranie hodnoty pH ELECTROcom kúpeľov
NORMA vydaná dňa 1.6.2010
Označenie normy: ASTM D4584-05(2010)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.6.2010
Kód tovaru: NS-27800
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
electrocoat baths, pH, pH measurement, ultrafiltrates, Acidity, alkalinity, pH--paints/related coatings/materials, Electrocoat baths, pH--paints/related coatings/applications, Ultrafiltrates/ultrafiltration (UF) systems, ICS Number Code 25.220.40 (Metallic coatings)
Significance and Use | ||||||||
The pH is the measure of the free hydrogen ion concentration of a sample, and it indicates whether an electrocoat bath is acidic, neutral, or basic. Since pH measurements of good precision are made in aqueous solutions, it is suggested that the pH measurements of electrocoat baths are only semi-quantitative, and therefore such measurements should be referred to as apparent pH measurements. The pH of electrocoat paints is used for research, production, and quality control or electrocoat bath process control. Other related methods for determining the pH of water or aqueous systems are described in Test Methods D1293 and E70. |
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1. Scope | ||||||||
1.1 This test method covers the measurement of the free hydrogen ion concentration of electrocoat baths and their ultrafiltrates. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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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