ASTM D4684-20a PDF
Standard Test Method for Determination of Yield Stress and Apparent Viscosity of Engine Oils at Low Temperature
Standard Test Method for Determination of Yield Stress and Apparent Viscosity of Engine Oils at Low Temperature
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 17 ноября 2020 г.
- SKU:
- ASTM D4684-20a
Abstract
Significance and Use 5.1 When an engine oil is cooled, the rate and duration of cooling can affect its yield stress and viscosity. In this laboratory test, a fresh engine oil is slowly cooled through a temperature range where wax crystalli...
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