1 Scope
This standard specifies the product classification, requirements, test methods, inspection rules and marking, packaging, transportation and storage of supply stops for sanitary appliance and steam pipe.
This standard is applicable to the supply stops for sanitary appliance and steam pipe intended for controlling the on and off of media (cold and hot water and steam).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2828.1 Sampling procedures for inspection by attributes—Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 7306.1 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1: Parallel internal and taper external threads
GB/T 7306.2 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2: Taper internal and external threads
GB/T 7307 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads
GB/T 17219 Standard for safety evaluation of equipment and protective materials in drinking water system
QB/T 3827 Corrosion-resistant testing method of the metal deposits and conversion coatings for the light industrial products—Acetic salt spraying test (ASS)
QB/T 3832 Evaluation of the corrosion test results of the metal deposits for the light industrial products
3 Product classification
3.1 Designation
3.1.1 The designation of product type is specified in Table 1.
Foreword I
1 Scope
2 Normative references
3 Product classification
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation and storage
Annex A
