GB/T 15558.5-2023Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 5: Fitness for purpose of the system (English PDF)

1 Scope

This document specifies the sample preparation and joint mechanical properties and inspection regulations for the system suitability of buried polyethylene (PE) pipeline systems for gas use:

then the requirements and the corresponding test methods are described:

This document, together with other parts of GB/T 15558, is applicable to operating temperatures of -20°C~40°C and maximum working pressure:

Buried polyethylene piping system for gas with (MOP) not greater than 1:0MPa, including pipes, pipe fittings, ball valves and their joints or components:

Note 1: The MOP of the piping system is related to the operating temperature and the material's rapid crack propagation resistance RCP critical pressure, see Appendix C of GB/T 15558:1-2023:

The reference operating temperature is 20°C:

Note 2: Relevant parties are responsible for appropriately selecting the products specified in GB/T 15558 (all parts) based on specific application requirements and in combination with relevant laws, standards and specification requirements:

product:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 2918 Standard environment for conditioning and testing of plastic specimens (GB/T 2918-2018, ISO 291:2008, MOD)

GB/T 6111 Determination of internal pressure resistance of thermoplastic piping systems for fluid transportation (GB/T 6111-2018, ISO 1167-1:2006, ISO 1167-2:2006, ISO 1167-3:2007, ISO 1167-4:2007, NEQ)

GB/T 15558:1-2023 Buried polyethylene (PE) piping system for gas use Part 1: General principles (ISO 4437-1:2014,

MOD)

GB/T 15558:2-2023 Buried polyethylene (PE) piping systems for gas use Part 2: Pipes (ISO 4437-2:2014,

MOD)

GB/T 15558:3-2023 Buried polyethylene (PE) piping systems for gas use Part 3: Pipe fittings (ISO 4437-3:2014,

MOD)

GB/T 15558:4-2023 Buried polyethylene (PE) piping systems for gas use Part 4: Valves (ISO 4437-4:2022,

MOD)

GB/T 19278 General terms and definitions for thermoplastic pipes, fittings and valves

GB/T 19806 Extrusion peeling test of polyethylene electrofusion components for plastic pipes and fittings (GB/T 19806-2005,

ISO 13955:1997,IDT)

GB/T 19807-2005 Plastic pipes and fittings Preparation of combined test pieces of polyethylene pipes and electrofusion fittings (ISO 11413:

1996,MOD)

GB/T 19808 Tensile peel test for polyethylene electrofusion components of plastic pipes and fittings with a nominal outer diameter greater than or equal to 90mm (GB/T 19808-2005, ISO 13954:1997, IDT)

GB/T 19809 Plastic pipes and fittings Preparation of polyethylene (PE) pipes/tubes or pipes/fittings hot-melt butt joint components (GB/T 19809-2005, ISO 11414:1996, IDT)

GB/T 19810 Determination of tensile strength and failure mode of hot-melt butt joints of polyethylene (PE) pipes and fittings

GB/T 15558.1 | GB/T 18742.1 | GB/T 15560 | GB/T 17643 | GB/T 15558.4 | GB/T 15558.3 | […]