PPR管件尺寸抽检数据

PPR管件是一种用于建筑工程的管道连接材料，具有重要的作用。PPR管件标准化的尺寸要求和精度是影响管件性能的关键参数之一。通过了解管件的尺寸可以更好地选择和使用合格的PPR管件，确保管道系统的正常运行和安全性。采用随机抽样评价法。1、数据检测：通过在同一型号同一个批次的PPR管件产品中随机抽取5件，采用双内钩槽游标卡尺/游标卡尺对管件进行检测。2、数据记录：记录管件、管件型号、管件批号、管件数量、抽检数量、检测仪器、检测条件和5件样品的承口口部、承口根部、承口深度和最小通径数据。3、数据判定标准：根据产品型号制定判定标准，其中S32型号标准为承口口部30.70~31.30mm，承口根部为30.40~31.00mm，承口深度为min 18.10mm，最小通径为min 25.00mm；T25型号标准为承口口部23.80~24.40mm，承口根部为23.50~24.10mm，承口深度为min 16.00mm，最小通径为min 18.00mm；L20型号 标准为承口口部19.00~19.50mm，承口根部为18.80~19.30mm，承口深度为min 14.50mm，最小通径为min 13.00mm。4、数据处理：如果检测的数据结果在标准范围内，怎判定样品的尺寸合格，反之则不合格，记录合格样品数量。5、数据评价：如果所有样品均为合格，则综合判定改同型号同批次产品总体合格。PPR pipe fittings are a type of piping connection material used in construction engineering, playing a critical role. Standardized dimensional requirements and precision of PPR pipe fittings are among the key parameters affecting the performance of the fittings. Understanding the dimensions of the fittings helps to better select and use qualified PPR pipe fittings, ensuring the normal operation and safety of the piping system. The random sampling evaluation method is adopted here. 1. Data detection: Randomly select 5 pieces from PPR pipe fitting products of the same model and batch, and detect the fittings using a double internal hook groove vernier caliper / standard vernier caliper. 2. Data recording: Record the fitting information, fitting model, batch number, total quantity of fittings, sampled quantity, testing instrument, testing conditions, as well as the data of socket mouth, socket root, socket depth and minimum through diameter of the 5 samples. 3. Data judgment criteria: Develop judgment criteria based on the product model. Specifically: - For S32 model: The socket mouth should be within 30.70~31.30 mm, the socket root within 30.40~31.00 mm, the socket depth no less than 18.10 mm, and the minimum through diameter no less than 25.00 mm; - For T25 model: The socket mouth should be within 23.80~24.40 mm, the socket root within 23.50~24.10 mm, the socket depth no less than 16.00 mm, and the minimum through diameter no less than 18.00 mm; - For L20 model: The socket mouth should be within 19.00~19.50 mm, the socket root within 18.80~19.30 mm, the socket depth no less than 14.50 mm, and the minimum through diameter no less than 13.00 mm. 4. Data processing: If the detected data falls within the standard range, the sample is judged as dimensionally qualified; otherwise, it is judged as unqualified, and the quantity of qualified samples shall be recorded. 5. Data evaluation: If all samples are qualified, comprehensively judge that the products of the same model and batch are generally qualified.