This specification covers chemically resistant, low expansion borosilicate glasses (Type I, Class A) used to manufacture beaded and end flanged-glass pipes and fittings for pressure and vacuum applications. Both the inside and outside surfaces of the glass shall be reasonably free of surface defects, such as open blisters or airlines and scratches, and shall be completely free of chips and checks. Pipe and fittings may be suitably heat treated (tempered) or annealed as specified by the manufacturer. Products should adhere to chemical, physical, and dimensional requirements, as well as minimum and maximum operating temperature, thermal shock resistance, and pressure ratings.
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1.1 This specification covers chemically resistant, low expansion Type-I borosilicate glass, Class A, (see Specification E438) used to manufacture beaded end flanged-glass pipe and fittings for pressure and vacuum applications.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C162 Terminology of Glass and Glass Products
C600 Test Method of Thermal Shock Test on Glass Pipe
C601 Test Method for Pressure Test on Glass Pipe
C623 Test Method for Youngs Modulus, Shear Modulus, and Poissons Ratio for Glass and Glass-Ceramics by Resonance
C693 Test Method for Density of Glass by Buoyancy
E438 Specification for Glasses in Laboratory Apparatus
ICS Number Code 81.040.30 (Glass products)
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