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Standard Test Method for Foaming Tendencies of Engine Coolants at Room Temperature
NORMA vydaná dňa 1.4.2020
Označenie normy: ASTM D4921-20
Dátum vydania normy: 1.4.2020
Kód tovaru: NS-990548
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
aqueous solutions, engine coolant, foam, foam test, foaming tendencies,, ICS Number Code 71.100.40 (Surface active agents)
Significance and Use | ||
4.1 The test method will generally identify coolants that have a tendency to foam excessively at room temperature. Note 1: In use, the foaming tendency of a coolant solution may
be increased by service aging or contamination.
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1. Scope | ||
1.1 This test method applies to a simple shake test for evaluating the tendency of an aqueous solution of engine coolant to foam at room temperature. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||
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