DB44/T 402.7-2007
Heat exchanger for domestic gas instantaneous water heater (English Version)

Standard No.

DB44/T 402.7-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

Guangdong Provincial Standard of the People's Republic of China

Latest

DB44/T 402.7-2007

Scope

This standard specifies the terms and definitions, model classification, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of household gas instant water heater heat exchangers. This standard applies to heat exchangers for household gas instant water heaters and gas boilers for hot water supply and heating.

DB44/T 402.7-2007 Referenced Document

• GB 9969.1 General principles for preparation of instructions for use of industrial products
• GB/T 191-2000 Packaging-Pictorial marking for handling of goods
• GB/T 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads

DB44/T 402.7-2007 history

• 2007 DB44/T 402.7-2007 Heat exchanger for domestic gas instantaneous water heater