1 Scope
This standard specifies the definition, symbols and abbreviations, material, product classification, technical requirements, test methods, inspection rules, and marking, packaging, transportation and storage of polypropylene pipes with circular cross section made of polypropylene pipes material through extrusion molding (hereinafter referred to as pipes).
This standard along with GB/T 18742.1 Polypropylene Piping Systems for Hot and Cold Water Installation - Part 1: General and GB/T 18742.3 Polypropylene Piping Systems for Hot and Cold Water Installation - Part 3: Fittings is applicable to pipes used in piping systems for hot and cold water installation within structures, including industry and civil cold and hot water, drinking water and heating system.
This standard is not applicable to fire extinguishing system and pipes for systems not using water as medium.
2 Normative References
The provisions of the following standards, through reference into this standard, constitute provisions of this standard. At the time of publication, the editions indicated were valid. As all the standards are subject to revision, each party using this standard shall discuss the feasibility of using the latest edition of the following standards.
GB/T 2828-1987 Sampling Procedures and Tables for Lot-by-lot Inspection by Attributes (Apply to Inspection of Successive Lots or Batches)
GB/T 2918-1988 Plastics - Standard Atmospheres for Conditioning and Testing (idt ISO 291:1997)
GB/T 3682-2000 Determination of the Melt Mass-flow Rate (MFR) and the Melt Volume-Flow Rate (MVR) of Thermoplastics (ISO 1133:1997)
GB/T 6111-1985 Standard Test Method for Time-to-failure of Thermoplastic Pipe under Constant Internal Pressure (eqv ISO/DP 1167:1978)
GB/T 6671-2001 Thermoplastics Pipes - Determination of Longitudinal Reversion (ISO 2505:1994)
GB/T 8806-1988 Method for Dimension Measuring of Plastic Pipes ((eqv ISO 3126:1974)
GB/T 10798-2001 Table of Universal Wall Thickness of Thermoplastics Pipe(idt ISO 4065:1996)
Foreword i
1 Scope
2 Normative References
3 Definition, Symbol and Abbreviation
4 Materials
5 Product Classification
6 Selection of Pipe Series S
7 Technical Requirements
8 Test Method
9 Inspection Rules
10 Marking, Packaging, Transportation and Storage
Annex A (Normative) Heat cycle Test Method
Annex B (Informative) Relationship between Pipe Series S and Nominal Pressure PN
