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ASTM D4921-20
Standard Test Method for Foaming Tendencies of Engine Coolants at Room Temperature
2 стр.
Действует
Печатное изданиеЭлектронный (pdf)
68.64 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
71.100.40 Surface active agents / Поверхностно-активные вещества
Сборник (ASTM):
15.05 Engine Coolants and Related Fluids; Halogenated Organic Solvents and Fire Extinguishing Agents / Охлаждающие жидкости двигателя, Галогенизированные органические растворители и Огнетушащие вещества; Промышленные и специализированные химикаты
Тематика:
Industrial Chemicals
Описание
Значение и использование

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.

Область применения

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.

Ключевые слова:
aqueous solutions; engine coolant; foam; foam test; foaming tendencies;