REFILLING OF ARGON GAS GRADE-III, PURITY 99.991 Percent , CAPACITY OF EACH CYLINDER IS 07 CUBIC METER TO IS 5760/1998, AMENDMENT NO.1 OF 2008, REV.2 OR LATEST. NOTE : 1) REFILLING IS TO BE DONE AS AND WHEN REQUIRED. HOWERVER, REFILLING SHALL BE DONE IN A BATCH OF FIVE CYLINDERS (35 CUM) ONLY. 2) BATCH WISE TEST CERTIFICATE OF GAS SHALL BE PROVIDED ALONG WITH EVRY SUPPLY 3) EMPTY CYLINDERS TO BE COLLECTED FROM SSE/CR-IV/PL AND RETURN DULY FILLED WITH ARGON GAS TO STORES / CONSIGNEE WITHIN 5 W