What is the meaning of A, B, C, D codes on LPG cylinders? Hidden reason behind A-24, B-26 stamps https://ift.tt/RoVsOal

Gas cylinder code meaning: The letters A, B, C, and D on an LPG cylinder indicate the quarter of the year when the cylinder is scheduled for mandatory safety testing.

from Zee News :India National https://ift.tt/aevbc4D