Impact test temperature for ASTM A 333 Gr.6

[ligin18]

Hi All
The design temperature is for our project is -68 degree C.The material selected is ASTM A333 Gr.6.As per my understanding impact test temperature for ASTM A 333 gr.6 is -45 degree C.Please clarify whether impact test can be done at -70 degree Celsius for ASTM A 333 Gr.6 material.

 

[DGrayPPD]

This question seems better suited for the Piping forum or the ASTM forum rather than Valve forum here.