supply of refilling of compressed ready mix oxygen cum argon gas cylinder of 47 ltr. capacity gas mixture composition should be 98% argon & 2% oxygen note : 1) refilling is to be done as and when required. howerver, refilling shall be done in a batch of four cylinders. 2) batch wise test certificate of gas shall be provided along with every supply 3) empty cylinders to be collected from sse/cr ii/pl and return duly filled with gas mixture composition should be 98% argon & 2% oxygen at filling pressure of 130kg/cm2 to sse/cr ii/pl within 04 working days after intimation. 4) transportation of cylinders either empty or full lies with supplier , refilling of compressed ready mix oxygen cum argon gas cylinder of 47 ltr. capacity gas mixt ure composition should be 98% argon & 2% oxygen note : 1) refilling is to be done as and when required. h owerver, refilling shall be done in a batch of four cylinders. 2) batch wise test certificate of gas shall be pro vided along with every supply 3) empty cylinders to be collected from sse/cr ii/pl and return duly filled wit h gas mixture composition should be 98% argon & 2% oxygen at filling pressure of 130kg/cm2 to sse/cr i /pl within 04 working days after intimation. 4) transportation of cylinders either empty or full lies with supp lier [ warranty period: 30 months after the date of delivery ] ]