Gas purity conformation

[JITHIN GOPINATH]

Sir,

 As per sec IX and API 1104 purity of gas is not an essential variable but in sec II C they had mentioned about the purity percentage. For example I have a gas certificate for CO2 with 99.5% but as per sec II C the purity percentage is given as 99.8%.

 So please advise me can I go with 99.5%...

Thanks and Regards

Jithin 

[Vishwas Keskar Welding Manager WELDING]

You can use 99.5 % 

Pl. qualify PQR and address in WPS as

Shielding Gas - CO2 

Composition - 99.5 % minimum 

In the said case you can NOT write Shielding gas - SFA 5.32  SG-C in WPS ,PQR 

Thanks and regards

Vishwas -IWE