GB/T 39997-2021Thermoplastic pipework for underground installation at petrol filling stations (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

1 Scope

This document specifies the terms and definitions, materials, classification, working pressure and life, Requirements, test methods, inspection rules, marking and packaging, transportation and storage.

This document is applicable to thermoplastic plastics and their reinforced/composite pipes, fittings or systems that transport liquid fuel oil and its oil and gas at gas stations include.

---The positive pressure refueling pipeline from the oil storage tank to the fuel dispenser (using submersible pump pressure) and the negative pressure refueling pipeline (using self-priming tanker);

---The unloading pipeline from the unloading port to the oil storage tank;

---Ventilation and oil and gas recovery pipelines;

---Impermeable jacket pipe.

This document does not apply to liquefied petroleum gas pipelines.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 1408.2 Insulating material electric strength test method Part 2: Additional requirements for applied DC voltage test

GB/T 2790 Adhesive 180° peel strength test method Flexible material vs. rigid material

GB/T 2791 Adhesive T peel strength test method flexible material vs. flexible material

GB/T 2828.1 Sampling inspection procedure by attributes Part 1: Batch inspection sampling plan retrieved by acceptance quality limit (AQL)

GB/T 2918 Standard environment for condition adjustment and testing of plastic samples

GB/T 5776 Corrosion of metals and alloys. Guidelines for the exposure and assessment of metals and alloys in surface seawater

GB/T 6111 Thermoplastic piping system for fluid transportation-Determination of internal pressure resistance

GB/T 7306.1 55° Sealed Pipe Thread Part 1: Cylindrical Internal Thread and Conical External Thread

GB/T 7306.2 55° Sealed Pipe Thread Part 2: Conical Internal Thread and Conical External Thread

GB/T 8806 Plastic piping system plastic parts size determination

GB/T 9572 Determination of resistance and conductivity of rubber and plastic hoses and hose assemblies

GB/T 16422.2-2014 Plastic laboratory light source exposure test method Part 2: Xenon arc lamp

GB/T 19278-2018 General terms and definitions for thermoplastic pipes, fittings and valves

GB/T 30040.1 Double-layer tank leakage detection system Part 1: General rules

GB/T 30040.2 Double-layer tank leakage detection system Part 2: Pressure and vacuum system

GB/T 30040.7 Double-layer tank leakage detection system Part 7: General requirements for double-layer gaps, anti-leakage linings and anti-leakage jackets Summation test method

ISO 11922-1 Dimensions and tolerances of thermoplastic pipes for conveying liquids-Part 1: Metric series (Thermoplastics pipesfortheconveyanceoffluids-Dimensionsandtolerances-Part 1: Metricseries)

ISO 13056 Plastic piping system cold and hot water pressure system vacuum tightness test method (Plasticspipingsystems. Pressuresystemsforhotandcoldwater-Testmethodforleaktightnessundervacuum)