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Description of ASTM-E3265 2020ASTM E3265-20Historical Standard: Standard Guide for Evaluating Water-Miscible Metalworking Fluid Foaming TendencyASTM E3265Scope 1.1 This guide provides an overview of foaming tendency evaluation protocols and their appropriate use. 1.2 ASTM Test Methods D3519 and D3601 were withdrawn in 2018. Although each method had some utility, neither method reliably predicted in-use foaming tendency. Since Test Methods D3519 and D3601 were first adopted, several more predictive test protocols have been developed. However, it is also common knowledge that no single protocol is universally suitable for predicting water-miscible metalworking fluid (MWF) foaming tendency. 1.3 Moreover, there are no generally recognized reference standard fluids (either MWF or foam-control additive). Instead it is important to include a relevant reference sample in all testing. 1.4 The age of the reference and test fluid concentrates can be an important factor in their foaming behavior. Ideally, freshly prepared concentrates should be held at laboratory room temperature for at least one week before diluting for foam testing. This ensures that any neutralization reactions have reached equilibrium and enables microemulsions to reach particle size equilibrium. During screening tests, it is also advisable to test fluids after the concentrates have been heat aged and subjected to freeze/thaw treatment. 1.5 The dilution water quality can have a major impact on foaming properties. In general, fluid concentrates diluted with hard water will foam less than those diluted with soft, deionized, or reverse osmosis water. Screening tests using the expected range of dilution water quality are highly recommended. 1.6 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 1.7 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. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Keywords coolant; foaming; metalworking fluid; MWF; ICS Code ICS Number Code 75.100 (Lubricants, industrial oils and related products) DOI: 10.1520/E3265-20 The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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