欧盟EN 681检测认证

test item测试名称:elastomeric seals-material re 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 re 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 /对水质的影响

4.2 finished seal re/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 re 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