ASTM D6594 method for evaluation of corrosiveness of diesel engine oil at 135 °C
1. Scope
1.1 This test method covers testing diesel engine lubricants to determine their tendency to corrode various metals, specifically alloys of lead and copper commonly used in cam followers and bearings.
1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D130 Test Method for Detection of Copper Corrosion from Petroleum Products by the Copper Strip Tarnish Test
D5185 Test Method for Determination of Additive Elements, Wear Metals, and Contaminants in Used Lubricating Oils and Determination of Selected Elements in Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
D5844 Test Method for Evaluation of Automotive Engine Oils for Inhibition of Rusting (Sequence IID)
D6557 Test Method for Evaluation of the Rust Preventive Characteristics of Automotive Engine Oils
E 691 Practice for Conducting an Inter-Laboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions:
3.1.1 corrosion, n - the chemical or electrochemical reaction between a material, usually a metal surface, and its environment that can produce a deterioration of the material and its properties.
3.1.2 developer, n - of an ASTM test method, the assigned ASTM group, working under the supervision of its governing subcommittee and main committee, that formats the test method in accordance with the Form and Style for ASTM Standards, and continually refines the test method.
3.1.3 developer, n - of a test procedure, an individual or organization that selects the test apparatus and operating conditions.
3.1.4 non-reference oil, n - any oil other than a reference oil; such as a research formulation, commercial oil, or candidate oil.
3.1.5 reference oil, n - an oil of known performance characteristics, used as a basis for comparison.
3.1.5.1 Discussion - Reference oils are used to calibrate testing facilities, to compare the performance of other oils, or to evaluate other materials (such as seals) that interact with oils.
3.1.6 specimen, n - a piece or portion of a sample used to make a test.
3.1.7 sponsor, n - of an ASTM test method, an organization that is responsible for ensuring supply of the apparatus used in the test procedure portion of the test method.
3.1.7.1 Discussion - In some instances, such as a test method for chemical analysis, an ASTM working group can be the sponsor of a test method. In other instances, a company with a self-interest may or may not be the developer of the test procedure used within the test method, but is the sponsor of the test method.
3.1.8 test oil, n - any oil subjected to evaluation in an established procedure.
