Typical markings for a permanent gas cylinder according to TPED

1. 25E = Thread Specification – Important to ensure the correct valve is used with your cylinder.
2. GB = Country of Manufacture
3. LUXFER = Cylinder Manufacturer
4. P3136Z ….= Cylinder Type Number and Serial Number – This number is recorded by Luxfer which means, if ever necessary, the entire manufacturing history of your cylinder can be traced.
   
5. AA6061 T6 = Alloy of Construction
6. 11,8MM = Design Minimum Wall Thickness.
7. 12,4KG = Empty Weight of Cylinder Only (kg)
8. 10L = Minimum Water Capacity (litres)
9. PW200 BAR = (Working Pressure) – Shows the pressure that the cylinder should be filled to – this must not be exceeded.
10. PH300 BAR = (Test Pressure) – Shows the pressure that the cylinder should be tested to – this must not be exceeded.
11. p 0038 = The mark of Conformity and Notified Body reference number to the Transportable Pressure Equipment Directive 1999/36/EC.
    
12. e2UK907 GB = Pattern Approval number according to Directive 84/526. Replaced by EN1975 when this specification is design basis. 
    
13. [STAMP] = Stamp of Notified Body.
14. 2002/09 = Year and Month of initial test.