(d)  Test specimen - (i) Test specimens required for flattening and expanding/flaring test specified in regulations 54(a), 54(b) and 54(c) shall be taken from ends of finished pipes prior to upsetting, swaging, expanding or any other forming operations or being cut to length.  They shall be smooth on ends and free from burrs and flaws.

(ii)  If desirable and practicable, tensile test may be carried out on full section of the pipe upto the capacity of the testing machine.  For large size pipes the tensile test specimen shall consist of strip cut longitudinally from the pipe and which is not straightened within the gauge length and further heat treated. 

(iii) If any test specimen shows flaws or defective machining it may be discarded and another specimen substituted.

(iv)All specimens shall be tested at room temperature.

(e) Number of tests - (i) The tests specified in regulations 54(a), 54(b) and 54(c) shall be made on minimum 2 pipes for first 100 pipes and 1 per 100 part thereof for pipes over 100 numbers.