ASTM D4047 Test Method for Phosphorus in Lubricating Oils and Additives
ASTM D4047 Standard Test Method for Phosphorus in Lubricating Oils and Additives by Quinoline Phosphomolybdate Method
1. Scope
1.1 This test method covers the determination of 0.005 to 10.0 mass % phosphorus in unused lubricating oil and additive concentrates. There is no reason to doubt its applicability to filtered, used lubricating oils, but no systematic study of this application has been made.
1.2 The test method is applicable to samples containing any of the phosphorus compounds in normal use.
NOTE 1 - This test method extends the scope of the previous version of IP 149 and replaces IP 148 and the previous version of IP 149 as a referee method.
1.3 The preferred units are acceptable metric units.
1.4 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. For specific hazard statements, see 6.9.
2. Referenced Documents
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D6299 Practice for Applying Statistical Quality Assurance Techniques to Evaluate Analytical Measurement System Performance
2.2 IP Standard:
IP 148 Test Method for Phosphorous in Lubricating Oils and Additives
