JSA JIS K 6778

Abstract

Scope: This Standard specifies polybutene pipes (hereafter referred to as "pipes") to be used mainly for the conveyance of water at 90 °C or lower. The polybutene pipes 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 representing the degree of correspondence are as follows. ISO 15876-2 : 2003 Plastics piping systems for hot and cold water installations - Polybutylene (FB) - Part 2 : Pipes and Amendment 1 : 2007 (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/lEC Guide 21 -1.