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ASTM C416-97(R2018) pdf free download

ASTM C416-97(R2018) pdf free download.Standard Classi fication of Silica Refractory Brick
1. Scope
1.1 This classification is limited to silica brick meeting the following requirements: 1.1.1 Alumina (Al 2 O 3 ) content of less than 1.50 %. 1.1.2 Titania (TiO 2 ) content of less than 0.20 %. 1.1.3 Iron oxide (FeO 3 ) content of less than 2.50 %. 1.1.4 Calcium oxide (CaO) content of less than 4.00 %. 1.1.5 Average modulus of rupture of not less than 500 psi (3.45 MPa). 1.2 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 appro- priate safety, health, and environmental practices and deter- mine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards: C133 Test Methods for Cold Crushing Strength and Modu- lus of Rupture of Refractories N OTE 1—Chemical analysis of refractory products is determined by a combination of X-ray fluorescence (XRF) and inductively coupled plasma (ICP) using standard reference materials (SRM), including various types of minerals and refractory materials that are available from the National This classification is under the jurisdiction of ASTM Committee C08 on Refractories and is the direct responsibility of Subcommittee C08.92 on The Joseph E. Kopanda Subcommittee for Editorial, Terminology and Classification. Current edition approved Oct. 1, 2018. Published October 2018. Originally approved in 1958. Last previous edition approved in 2013 as C416 – 97 (2013). DOI: 10.1520/C0416-97R18.
4. Basis of Classification
4.1 Flux Factor—Silica brick are classified on the basis of impurities by the use of a “flux factor,” which is equal to the percent of alumina plus twice the percent of total alkalies. 4.2 Types: 4.2.1 Type A—Silica brick having a flux factor of 0.50 or less. 4.2.2 Type B—All other silica brick falling within the scope of this classification.
5. Test Methods
5.1 The properties listed in this classification shall be determined in accordance with the following ASTM methods: 5.1.1 Modulus of Rupture—Test Methods C133. 5.1.2 Chemical Analysis—XRF and ICP.
6. Retests
6.1 Because of variables resulting from sampling and the lack of satisfactory reproducibility in tests conducted by different laboratories, the material may be resampled and retested when requested by either the manufacturer or the purchaser. This may apply in instances when the first test results do not conform to the requirements prescribed in this classification. The final results to be used shall be the average of at least two sets of results, each of which has been obtained by following in detail the specified testing procedures.
7. Keywords
7.1 brick; refractories; silica

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