Engineering Circular No. 41
Dated November 03, 2004
2. As pasting of stickers is not a routine practice, (please refer to the Engineering Circular No.17 date 08.10.2003) it is advised that the date of pressure testing must be stamped on each cylinder after they have under gone satisfactory hydraulic pressure testing.
3. As required by the Gas Cylinders Rules, 1981 marking on cylinders :
a) shall be clearly and permanently marked in accordance with the
following condition by
i) On the shoulder of the cylinder which shall be enforced by forging or other means, or
ii) On such a part which is inseparably bound with the cylinder and which is not, or only, negligibly effected by the stresses due to the gas pressure within it.
nameplate shall not be affixed to the cylinder by soldering if there is a
risk of corrosion or
Markings shall be so carried out
and the letters and numerals used shall be of such shape
e) Every cylinder shall be marked with :
i) The date of the last hydrostatic test or hydrostatic stretch test, as the case may be.