China Quality News Network News According to the website of the Weifang Market Supervision Bureau in Shandong Province on November 25, 2021, from June to October 2021, the Weifang Municipal Market Supervision and Administration Bureau organized the second batch of product quality supervision and random inspections. A total of 9 batches of random copolymer polypropylene (PP-R) pipe products from 7 enterprises in the city were randomly inspected. Among them, 6 enterprises in the production field have 8 batches of products, and 1 enterprise in the circulation field has 1 batch of products.
According to the requirements of GB/T 18742.2-2017 "Polypropylene Pipeline System for Hot and Cold Water Part 2: Pipes" and other standards, the sampling mainly inspected the average outer diameter, wall thickness, longitudinal retraction rate, simple support beam impact test, hydrostatic test 20 °C1h, hydrostatic test 95 °C22h, hydrostatic test 95 °C165h, sanitary performance (lead, cadmium) and other 8 items, and all the product inspections were qualified.
Summary table of product quality municipal supervision and random inspection results
serial number
The product name
Business name
Credit codes
Jurisdiction
Enterprise size
trademark
Nominal production enterprise
Specifications and models
Production date/lot number
Spot check results
Non-conforming items
Inspection agency
1
Random copolymer polypropylene (PP-R) pipe
Qingzhou Master Plastic Industry Co., Ltd
91370781678120663T
Qingzhou City
Small
Gianned
S3.2 dn25×en3.5mm
2021.03
qualified
/
Weifang Product Quality Inspection Institute
2
Zhongtian Pipe Industry (Shandong) Co., Ltd
913707815766079722
ZTAN
S3.2 dn20×en2.8mm
2021.04
3
Shandong Shouguang Hengtong Plastic Co., Ltd
91370783684803954C
Shouguang City
Yukun Jufeng
S4 dn25×en2.8mm
2020.12
4
Shengda Pipe Industry Technology Co., Ltd
91370783740230055Q
medium
St. John's
2021.07
5
6
Weifang Youjia New Energy Technology Co., Ltd
91370703792484276W
Marina Area
Friends
2020.07.17
7
Shandong Dazheng New Material Technology Co., Ltd
91370702266826002K
Weicheng District
Tianhui
2021.06
8
9
Random copolymer polypropylene (PP-R) pipe (green new PP-R hot water pipe)
Weicheng District Development Zone Haonuo Pipe Industry Management Department
91370700793939199P
Linyi Sun Rain New Building Materials Co., Ltd
2021.05.11
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