Thermoplastics valves - Torque - Test method (ISO 8233:1988)
热塑性阀门 - 扭矩 - 试验方法(ISO 8233:1988)
发布日期:
1990-12-12
实施日期:
1990-12-12
指定热塑性阀门开闭扭矩测定方法。试验应在调节期之前和之后通过公称压力进行
Specifies a test method for the determination of the opening and closing torque of thermoplastic valves. Testing shall be carried out by nominal pressure before and after a conditioning period.