Guangdong Provincial Standard of the People's Republic of China
Latest
DB44/T 402.1-2007
Scope
This standard specifies the classification, structural requirements, performance requirements, test methods, rules and signs, packaging, transportation and storage of exhaust pipes and supply and exhaust pipes for gas water heaters. This standard applies to exhaust pipes and supply and exhaust pipes made of metal materials used in household gas water heaters [hereinafter referred to as "(supply) exhaust pipes"], but does not include exhaust pipes and supply and exhaust pipes using public flues. Tube.
DB44/T 402.1-2007 Referenced Document
GB 6932 Domestic gas instantaneous water heater*， 2015-09-18 Update
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
QB/T 3826-1999 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products.Neutral salt spraying test (NSS)
QB/T 3832-1999 Evaluation of the corrosion test results of the metal deposits for the light industrial products