In 2014, a total of 330 batches of random production from 327 enterprises in 14 provinces, autonomous regions, and municipalities, including Anhui, Guizhou, Hebei, Henan, Hubei, Hunan, Jilin, Liaoning, Shaanxi, Sichuan, Jiangsu, Xinjiang, Zhejiang, and Chongqing, were randomly inspected. Copolymer polypropylene (PP-R) products.

　　This spot check has examined key items such as specifications, longitudinal shrinkage, simply supported beam impact test, hydrostatic test at 20 ° C for 1 hour, hydrostatic test at 95 ° C for 22h, hydrostatic test at 95 ° C for 165h, and hygiene performance. 32 batches failed, and the failed items involved specifications and sizes 11 batches failed, accounting for 34.4% of the total number of failures; 0 ° C hydrostatic samples failed 9 batches, accounting for 28.1% of the total number of failures; 95 ° C, 22h 19 batches of hydrostatic test failed, accounting for 59.4% of the total number of disqualifications; 95 batches of 165h hydrostatic test failed, accounting for 59.4% of the total number of disqualifications; hygienic performance (lead) exceeded the standard 1 batch, It accounted for 3.1% of the total number of disqualifications.