欧盟EN 681检测认证

Test item测试名称:Elastomeric seals-Material requirements for pipejoint 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 jointseals used in water and drainage applications

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（ISO37、GB/T 528）

4.2.5 Compression set in air/在空气中的压缩变形

4.2.5.1 General/总则

4.2.5.2 Compression set at 23°C,70°C and125°C/在23°C,70°C和125°C下的压缩变形(ISO 815、GB/T 7759)

4.2.5.3 Low temperature compression setat(-10°C)/在-10°下的低温压缩变形(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/T1685)

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 watersupply/撕裂强度(ISO 816、GB/T 12829)

4.2.11 Compression set in water for joint seals for hot watersupply/在水中的压缩变形

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 watersupply,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