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Introduction to the ASTM Designation System
ASTM specifications represent a consensus among producers, specifiers, fabricators, and users of steel mill products. ASTM's designation system for metals consists of a letter (A for ferrous materials) followed by an arbitrary sequentially assigned number. These designations often apply to specific products, for example A548 is applicable to ...
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Standard Specification for Seamless, Welded, and
1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
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Standard Test Methods for DC Resistance or
1.1 These test methods cover direct-current procedures for the measurement of dc insulation resistance, volume resistance, and surface resistance. From such measurements and the geometric dimensions of specimen and electrodes, both volume and surface resistivity of electrical insulating materials can be calculated, as well as the …
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Standards by Category
Fastener Standards. Fatigue Standards and Fracture Standards. Fire Standards and Flammability Standards. Forensic Science Standards. Geotechnical Engineering Standards. Glass Standards and Ceramic Standards. Industrial Chemical Standards. Industrial Hygiene Standards and Safety Standards. Laboratory Testing Standards.
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Standard Specification for Poly(Vinyl Chloride) Sheet Roofing
Scope. 1.1 This specification covers flexible sheet made from poly (vinyl chloride) resin as the primary polymer intended for use in single-ply roofing membranes exposed to the weather. The sheet shall contain reinforcing fibers or reinforcing fabrics. 1.2 The tests and property limits used to characterize the sheet are values intended to ...
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