ASTM D3707 test method for storage stability of water-in-oil emulsions
ASTM D3707 standard test method for storage stability of water-in-oil emulsions by the oven test method
1. Scope
1.1 This test method covers the stability of water-in-oil emulsions when held at a constant elevated temperature.
1.2 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.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents
2.1 ASTM Standards:
D1744 Test Method for Water in Liquid Petroleum Products by Karl Fischer Reagent
E 145 Specification for Gravity-Convection and Forced-Ventilation Ovens
3. Summary of Test Method
3.1 A 100-mL sample contained in a graduated 100-mL cylinder is placed in a thermostatically controlled oven at 85°C (185°F) for 48 or 96 h. The sample is then examined for the amount of free oil and free water separated. In addition, water contents of the sample at specified levels in the upper and lower layers of the sample are also obtained.
4. Significance and Use
4.1 This test method indicates the stability of the emulsion during storage and normal usage.
