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Description of ASTM-C135 2009ASTM C135 - 96(2009)e1Standard Test Method for True Specific Gravity of Refractory Materials by Water ImmersionActive Standard ASTM C135 | Developed by Subcommittee: C08.03 Book of Standards Volume: 15.01
Translated Standard: Russian ASTM C135Significance and Use The true specific gravity of a material is the ratio of its true density, determined at a specific temperature, to the true density of water, determined at a specific temperature. Thus, the true specific gravity of a material is a primary property which is related to chemical and mineralogical composition. For refractory raw materials and products the true specific gravity is a useful value for: classification, detecting differences in chemical composition between supposedly like samples, indicating mineralogical phases or phase changes, calculating total porosity when the bulk density is known, and for any other test method which requires this value for the calculation of results. This test method is a primary standard method which is suitable for use in specifications, quality control, and research and development. It can also serve as a referee test method in purchasing contracts or agreements. Fundamental assumptions inherent in this test method are the following: The sample is representative of the material in general, The total sample has been reduced to the particle size specified, No impurity has been introduced during processing of the sample, The sample itself is not magnetic and all magnetic material introduced during processing of the sample has been removed, The material is not hydratable or reactive with water, and The test method has been conducted in a meticulous manner. Deviation from any of these assumptions negates the usefulness of the results. In interpreting the results of this test method it must be recognized that the specified sample particle size does not guarantee that all closed pores have been eliminated. The amount of residual closed pores may vary between materials or even between samples of the same or like materials, and the specified sample particle size is not the same as that specified for Test Method C 604 . The values generated by this test method may, therefore, be close approximations rather than accurate representations of true specific gravities. Thus, comparisons of results should only be judiciously made between like materials tested by this test method or with full recognition of potentially inherent differences between the materials being compared or the test method used. 1. Scope 1.1 This test method covers the determination of true specific gravity of refractory materials under prescribed conditions. It is not applicable to materials attacked by water. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.2.1 Exception The equipment used in this standard for weights and volumes is only available in SI 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 and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards C604 Test Method for True Specific Gravity of Refractory Materials by Gas-Comparison Pycnometer D153 Test Methods for Specific Gravity of Pigments E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves Keywords nonhydratable; pycnometer; refractory material; true specific gravity; water immersion; Refractories (general); Specific gravity--refractory materials; True specific gravity; Water immersion testing; ICS Code ICS Number Code 81.080 (Refractories) DOI: 10.1520/C0135-96R09E01 ASTM International is a member of CrossRef. ASTM C135This 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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