ASTM D6731-01(2005)
Historical Standard: ASTM D6731-01(2005) Standard Test Method for Determining the Aerobic, Aquatic Biodegradability of Lubricants or Lubricant Components in a Closed Respirometer
SUPERSEDED (see Active link, below)
ASTM D6731
1. Scope
1.1 This test method covers a procedure for determining the degree of biodegradability of lubricants or their components in an aerobic aqueous medium on exposure to an inoculum under controlled laboratory conditions. This test method is an ultimate biodegradation test that measures oxygen demand in a closed respirometer.
1.2 This test method is suitable for evaluating the biodegradation of volatile as well as nonvolatile lubricants or lubricant components.
1.3 This test method is applicable to lubricants and lubricant components which are not toxic and not inhibitory to the test microorganisms at the test concentration.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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. Specific hazards are given in Section .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D1293 Test Methods for pH of Water
D4175 Terminology Relating to Petroleum, Petroleum Products, and Lubricants
D4447 Guide for Disposal of Laboratory Chemicals and Samples
D6384 Terminology Relating to Biodegradability and Ecotoxicity of Lubricants
E943 Terminology Relating to Biological Effects and Environmental Fate
ISO Standards
ISO9408:1999 Water QualityEvaluation of Ultimate Aerobic Biodegradability of Organic Compounds in Aqueous Medium by Determination of Oxygen Demand in a Closed RespirometerOECD Standards
OECD301F:1992 Ready Biodegradability-Manometric RespirometryAPHA Standards
9215 Heterotrophic Plate CountKeywords
aerobic; biodegradation; BOD; degree (of biodegradation); municipal; respirometer; sewage sludge; ThO 2 ; water insoluble; Aerobic/anaerobic biodegradation--petroleum products; Biochemical oxygen demand (BOD); Inoculum processing; Lubricant biodegradability; Lubricants; Respirometer; Sewage sludge monitoring; Thorium oxide (ThO 2 ); Water-insoluble material/process ;
ICS Code
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
DOI: 10.1520/D6731-01R05
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