DS DS/EN ISO 228-2
DS DSEN SO 228-2 2003-APR-30 Ppe threads where pressure-tght jonts are not made on the threads - Part 2 Verfcaton by means of lmt gauges
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This part of ISO 228 specifies the verification by means of limit gauges, of cylindrical threads, the dimensions and tolerances of which are given in ISO 228-1.