EN 681检测和认证

EN 681检测内容概述
Test item 测试名称: Elastomeric seals-Material requirements for pipe joint seals used in water and drainage applications
Part 1: Vulcanized rubber, 弹性密封件-给水排水用管道连接密封件的材料要求.第1部分:硫化橡胶
 
Test info 测试内容:
EN 681-1 Elastomeric seals-Material requirements for pipe joint seals used in water and drainage applications
Part 1: Vulcanized rubber, 弹性密封件-给水排水用管道连接密封件的材料要求.第1部分:硫化橡胶
4 Materials/ 材料要求
4.1.1 General/ 总则
4.1.2 Effect on water quality/ 对水质的影响
4.2 Finished seal requirements/ 成品密封圈的要求
4.2.1 Dimensional tolerances /尺寸公差
4.2.2 Imperfections and defects/ 疵点和缺点
4.2.3 Hardness/ 硬度(ISO 48、GB/T 6031)
4.2.4 Tensile strength and elongation at break/ 拉伸强度和扯断伸长率(ISO 37、GB/T 528)
4.2.5 Compression set in air/ 在空气中的压缩永久变形
4.2.5.1 General/ 总则
4.2.5.2 Compression set at 23°C, 70°C and 125°C/ 在23°C,70°C 和125°C下的压缩永久变形(ISO 815、GB/T 7759)
4.2.5.3 Low temperature compression set at (-10°C)/ 在-10°下的低温压缩永久变形(ISO 815、GB/T 7759)
4.2.6 Accelerated ageing in air/ 在空气中的加速老化(ISO 188、GB/T 3512)
4.2.7 Stress relaxation in compression/ 压缩应力松弛(ISO 3384、GB/T 1685)
4.2.8 Volume change in water/ 在水中的体积变化(ISO 1817、GB/T 1690)
4.2.9 Ozone resistance/ 耐臭氧(ISO 1431-1、GB/T 7762)
4.2.10 Tear strength for joint seals for hot water supply/撕裂强度(ISO 816、GB/T 12829)
4.2.11 Compression set in water for joint seals for hot water supply/ 在水中的压缩永久变形
4.2.12 Splices of prevulcanized profile ends/ 预硫化橡胶型材首尾的搭接
4.2.12.1 Spliced joints shall be vulcanized/ 接头
4.2.12.2 Strength of spliced joints/ 接头的强度
4.3 Optional requirements for joint seals for cold water supply, drainage and sewerage/ 给水排水用管道连接密封件的可选要求
4.3.1 General/ 总则
4.3.2 Low temperature performance at -25°C/ -25°C下的低温性能
4.3.3 Volume change in oil/ 在油中的体积变化
9 Designation/ 标识代码
10 Marking and labeling/ 标志与标签
 
Lead time 测试周期: 常规 regular service 15 working days
 
Sample size 送样规格: on reuqest
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