Core Insights - The 2024 quality supervision inspection results for plastic pipe products in Hainan Province revealed a non-conformity rate of 16%, with 4 out of 25 batches failing to meet standards [1] Group 1: Inspection Results - A total of 25 batches of plastic pipe products were inspected, with 4 batches found to be non-compliant, resulting in a non-conformity rate of 16% [1] - The inspection was conducted based on multiple national standards, including GB/T 5836.1-2018 and GB/T 10002.1-2023, among others [1] Group 2: Non-Conformity Details - The non-compliant products included building drainage pipes and MPP power cable protective pipes, with issues related to density, longitudinal shrinkage rate, and tensile yield strength [1] - The primary reasons for non-compliance were identified as improper production process control, unreasonable formula design, and the use of inferior raw materials [1] Group 3: Implications of Non-Conformity - Non-compliant building drainage pipes exhibited poor aging performance and ductility, leading to potential deformation and cracking, which could result in serious issues such as water leakage [1] - The MPP power cable protective pipes showed low elongation at break, indicating a risk of breakage during installation and use, posing significant quality and safety hazards [1]