NF EN 28659-1991 标准详情
- 标准号:NF EN 28659-1991
- 中文标题:
- 英文标题:Thermoplastics valves. Fatigue strength. Test method. Robinets en matiaux thermoplastiques. Ristance la fatigue. Mhode d'essai.
- 标准类别:法国国家标准
- 发布日期:1991-04-01
Specifies the test needed to confirm the ability of hand-operated plastics valves to withstand prolonged use, with repeated closure and openings. Does not specify the ability of valves to withstand adverse conditions; particularly those of chemically
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