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Standard Test Method for Comparison of Metalworking Fluids Using a Tapping Torque Test Machine
1.1 This test method describes a laboratory technique to evaluate the relative performance of metal removal fluids using an instrumented tapping machine that measures and records torque.
1.1.1 The method is applicable to all tap types, machining speeds, and alloys that can be fabricated into a test piece. Comparison can be made between different operating conditions or various types of fluids including straight and emulsifiable oils, semi-synthetics and synthetic fluids (see Classification D2881).
1.2 The values stated in SI units are to be regarded as standard.
1.2.1 Exception—The units for the threads of the tap, M6, are in metric thread units.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International StandardDetails, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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