supply of compressed oxygen gas to is:309/2005 (fourth revision).terms and conditions:1. the empty gas cylinders are to be collected from sse/c&w/gy and refilled oxygen gas cylinders are to be delivered to consignee end by the firm whenever required by the consignee. 2.collection of empty and delivery of refilled oxygen cylinders should be done within 48 hrs.from the date of intimation. 3. [a]loading/unloading of empty/refilled oxygen gas cylinders will be provided at consignee end only. [b]loading/unloading of empty/refilled oxygen gas cylinders at the refilling point should be done by the firm. , compressed oxygen gas to is:309/2005 (fourth revision). terms and conditions: 1. the empty gas cyli nders are to be collected from sse/c&w/gy and refilled oxygen gas cylinders are to be delivered to consignee end by th e firm whenever required by the consignee. 2.collection of empty and delivery of refilled oxygen cylinders should be do ne within 48 hrs.from the date of intimation. 3. [a]loading/unloading of empty/refilled oxygen gas cylinders will be pro vided at consignee end only. [b]loading/unloading of empty/refilled oxygen gas cylinders at the refilling point should be done by the firm. ]