Forum Discussion
mobeewan
Aug 31, 2017Explorer
mike-s wrote:352 wrote:So you have a cylinder which is good to the 19th day of the 20th month of 2021?
Use a cheap Harbor Freight engraver. $1.99. Engrave BT1400a212019 or any other combination of numbers and I bet you they will fill it. Just make sure the last numbers are a future date.
Not exactly. The recertification marking is 5 digits.
The first 4 are the month and year. The last is a letter.
E for first visual inspection good for 5 years, ex. 0817E.
I'm not sure but I believe F is used for the second visual inspection which is good for an additional 5 years, ex. 0817F.
S for pressure test good for 7 years, ex. 0817S.
IIRC the visual inspection can only be done twice in the lifetime of the cylinder. Then it might be time for a pressure test or a new cylinder. I never got that far with a cylinder yet.
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