Pipe threads where pressure tight joints are made on the threads - Taper external threads and parallel internal threads. Dimensions, tolerances and designation not-eligible electrical apparatus complying with this

electrical apparatus complying with this standard is intended for use in hazardous areas in which explosive gas atmospheres

additional safety measures may be necessary

1 Testing machine and force measurement

abnormal operation and fault conditions

3 Measuring equipment

Pipe threads where pressure tight joints are made on the threads - Taper external threads and parallel internal threads. Dimensions, tolerances and designation not-eligible electrical apparatus complying with thisBS EN 10226 1: 2004 Pipe threads where pressure tight joints are made on the threads. Taper external threads and parallel internal threads. Dimensions, tolerances and designation BS EN 10226 1 specifies the requirements for thread form, dimensions, tolerances and designation for jointing pipe threads, sizes 1 16 to 6 inclusive. It applies to joints made pressure tight by means of mating of the threads. These threads are taper external and parallel