Причина отмены This specification covers chemically resistant, low ex- pansion Type-I borosilicate glass, Class A, (see Specification E438) used to manufacture beaded end flanged-glass pipe and fittings for pressure and vacuum applications.

Formerly under the jurisdiction of Committee C14 on Glass and Glass Products, this test method was withdrawn in November 2019. This standard is being withdrawn without replacement due to its limited use by industry.

Реферат

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.

Область применения

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.

1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.