Here is how we can check the expiry of LPG cylinders:
On one of three side stems of the cylinder, the expiry date is coded alpha numerically as follows A or B or C or D and some two digit number following this e.g. D06.
The alphabets stand for quarters -
1. A for March (First Quarter Jan to Mar),
2. B for June (Second Quarter Apr to Jun),
3. C for Sept (Third Quarter Jul to Sept),
4. D for December (Fourth Quarter Oct to Dec).
The digits stand for the year till it is valid. Hence D06 would mean December Quarter of 2006.
D -> December quarter means Oct to Dec
06 -> Year 2006

Please Return Back the Cylinder that you get with a Expiry Date, they are prone to Leak and other Hazardous accidents.
The second example with D13 allows the cylinder to be in use until Dec 2013 .

Please communicate this information to your family and friends.
Kindly pass this to every one, and create awareness among the public