BS 949-3-1993
丝锥.管螺纹丝锥规格
Screwing taps - Specification for pipe thread taps
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- 标准号
- BS 949-3-1993
- 发布日期
- 1993年03月15日
- 实施日期
- 1993年03月15日
- 废止日期
- 无
- 中国标准分类号
- J41
- 国际标准分类号
- 25.100.50
- 发布单位
- GB-BSI
- 代替标准
- BS ISO 2284-2017
- 被代替标准
- 90/79113 DC-1990 BS 949 Part 3-1982
- 适用范围
- This Part of BS 949 specifies dimensions and tolerances for screwing taps for the following thread series: a) parallel internal pipe threads for use where pressure-tight joints are not required to be made on the threads, i.e. G series threads, in accordance with BS 2779 : 1986; b) parallel internal pipe threads for use with taper external pipe threads in making pressure-tight joints on the threads, i.e. Rp series threads, in accordance with BS 21 : 1985; c) taper internal pipe threads for use with taper external pipe threads in making pressure-tight joints on the threads, i.e. Rc series threads, in accordance with BS 21 : 1985.