CJ/T 250-2018 in English

VALID

High density polyethylene pipes and fittings for drainage inside buildings

Issued on:2018-10-30
Implemented on:2019-04-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $550.00
$534.00

Standard No:	CJ/T 250-2018
Document status:	VALID
Title in English:	High density polyethylene pipes and fittings for drainage inside buildings
Title in Chinese:	建筑排水用高密度聚乙烯（HDPE）管材及管件
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2018-10-30
Implemented on:	2019-04-01
Superseding:	CJ/T 250-2007 High density polyethylene pipes and fittings for drainage inside buildings
Professional Classification:	CJ-Urban Construction
Related Keywords:	electric fusion pipe fittings inside buildings introduction analysis implementation suggestions pipes new pe100 performance indicators improve pressure bearing capacity testing items localization adaptation material requirements pe100
Related Topics:	high density low density polyethylene high temperature Gold Density by Drainage Method Drainage method for density determination Drainage density Determination of density by drainage method Drainage Density Determination Drainage density method Drainage density Gold Density by Drainage Method Drainage Density Basis Drainage Density Meter high energy density material high energy density material high energy density, material HDPE and LDPE cj/t-2018 High-density polyethylene HDPE LDPE High Density Polyethylene Fusion Han Lead-free drainage pipe Drainage method true density Drainage density Pipe Fittings Pipe Fittings Is HDPE fireproof? Polyethylene pipe High-density polyethylene (HDPE) pipes and fittings for building drainage Polyethylene pipes for drainage pipe pipe fittings Pipes and Fittings Building water supply and drainage pipes Polyethylene pipe Density measurement by drainage method HDPE high density polyethylene material Medical high density polyethylene reference Density of metal using drainage method Drainage method to test density High density polyethylene pipe cj/t250-2018 cj/t526-2018

Introduction

Analysis of the key points of standard revision

Revision content	2007 edition	2018 edition	Technical impact
Referenced standards	EN 1053/1054	GB/T 5836.1	Localization adaptation
Material requirements	PE100 is not specified	New PE100 performance indicators	Improve pressure bearing capacity
Testing items	8 items	4 new items such as impact resistance and welding strength	Strengthening quality control

Key technical requirements

Material properties

The raw materials must be PE80 or PE100 mixed materials, with a carbon black content of (2.5±0.5)%, a melt flow rate of 0.2-1.1g/10min, and an oxidation induction time of ≥20min (200℃).

Pipe series selection

Siphon rainwater system must use S12.5 series pipes with "BD" markings, with a ring stiffness of ≥8kN/m² and a vacuum test pressure of -0.08MPa.

Implementation suggestions

Pipes should be stored away from direct sunlight, and the stacking height should be ≤1.5m
The working voltage of electric fusion pipe fittings is 220V±15V, and a special welding machine is required
After the system is installed, temperature rise resistance cycle (1500 times) and water tightness test are required

Technology evolution analysis

This standard is not equivalent to ISO 8770:2003, and the main differences are: the connection method focuses on butt welding/electric fusion (socket joints are limited to expansion joints), the application scope is extended to siphon rainwater systems, and the PE100 material grade requirement is added.

More samples: JGJ 94-2008 GB 18306-2015 NB/T 47013.2-2015

Sample only — not a preview of CJ/T 250-2018