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Significance and Use
5.1 These test methods are useful in indicating the differences in flexure (breaking load, modulus of rupture) between various slates. These test methods also provide one element in the comparison of roofing slates under Specification and structural slates under Specification .
1.1 These test methods cover determination of the breaking load of roofing slate and modulus of rupture of structural slate by use of simple three-point loading.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C119 Terminology Relating to Dimension Stone
C406 Specification for Roofing Slate
C629 Specification for Slate Dimension Stone
E4 Practices for Force Verification of Testing Machines
E145 Specification for Gravity-Convection and Forced-Ventilation Ovens
ICS Number Code 91.100.15 (Mineral materials and products)
UNSPSC Code 11111606(Slate)
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ASTM C120 / C120M-15a, Standard Test Methods for Flexure Testing of Structural and Roofing Slate, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top