JSA JIS K 6779

Abstract

Scope: This Standard specifies pipe fittings (hereafter referred to as "fittings") to be used for jointing with polybutene pipes (hereafter referred to as "pipes") specified in JIS K 6778 mainly for the conveyance of water at .90oC or lower The polybutene pipes, as well as the pipe fittings, are intended to be used for installations within buildings for the conveyance of water whose working pressure is 0.75 MPa or lower NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows. ISO 15876-3: 2003 Plastics piping systems for hot and cold water installations - Polybutylene (FB) - Part 3 : Fittings (MOD) In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.