Provision of marking. On each cylinder the manufacturer shall provide clear permanent markings not less than 6 mm high. Marking shall be made either by labels incorporated into resin coatings, labels attached by adhesive, low stress stamps used on the thickened ends of type CNG-1 and CNG-2 designs, or any combination of the above. Adhesive labels and their application shall be in accordance with ISO 7225, or an equivalent Standard. Multiple labels are allowed and should be located such that they are not obscured by mounting brackets. Each cylinder complying with this annex shall be marked as follows:
(a) Mandatory information:
(i) CNG ONLY";
(ii) DO NOT USE AFTER XX/XXXX", where "XX/XXX" identifies the month and year of expiry 1/;
(iii) Manufacturer’s identification;
(iv) Cylinder identification (applicable part number and a serial number unique for every cylinder);
(v) Working pressure and temperature;
(vi) ECE Regulation number, along with cylinder type and certification registration number;
(vii) The pressure relief devices and/or valves which are qualified for use with the cylinder, or the means for obtaining information on qualified fire protection systems;
(viii) When labels are used, all cylinders shall have a unique identification number stamped on an exposed metal surface to permit tracing in the event that the label is destroyed;
Provision of marking. On each cylinder the manufacturer shall provide clear permanent markings not less than 6 mm high. Marking shall be made either by labels incorporated into resin coatings, labels attached by adhesive, low stress stamps used on the thickened ends of type CNG-1 and CNG-2 designs, or any combination of the above. Adhesive labels and their application shall be in accordance with ISO 7225, or an equivalent Standard. Multiple labels are allowed and should be located such that they are not obscured by mounting brackets. Each cylinder complying with this annex shall be marked as follows:
