Many Nigerian households rely on liquefied petroleum gas (LPG) for daily cooking, but few realize that gas cylinders have expiration dates. Contrary to popular belief, these sturdy containers don't last forever and can become safety hazards over time.
Why Gas Cylinders Expire in Nigeria
The steel construction of LPG cylinders gradually weakens due to corrosion, pressure changes, heat exposure, and physical damage. Even if your cylinder appears intact, internal weaknesses can develop that compromise its structural integrity. This is why cylinders have a recommended lifespan of 10-15 years and require periodic safety testing.
How To Check Your Gas Cylinder's Expiry Date
Most cylinders feature stamped codes indicating when they need testing or replacement. Here's how to decode these markings:
First, examine the metal strips, collar, or neck area of your cylinder. Look for codes like A-23, B-24, or sometimes just a number such as "27".
The letter represents the testing quarter: A for January-March, B for April-June, C for July-September, and D for October-December.
The two-digit number indicates the year. For example, B-23 means the cylinder requires testing in the second quarter (April-June) of 2023.
If you only see a number, it typically refers to the year. When no markings are visible, take your cylinder to an authorized dealer or testing center for safety verification.
Dangers of Using Expired Gas Cylinders
Continuing to use an expired gas cylinder creates serious risks for Nigerian families. Weakened cylinders can develop cracks and sudden gas leaks, which in confined kitchen spaces can lead to catastrophic explosions when exposed to sparks or flames.
Additional consequences include damage to cooking appliances, potential legal liability especially in commercial settings, and the obvious threat to lives and property. Never assume that because gas remains inside, the cylinder is automatically safe.
Additional Safety Measures for Nigerian Users
Beyond checking expiration dates, follow these essential precautions: Always store cylinders upright in cool, ventilated areas away from direct sunlight and heat sources. Regularly check for leaks using soapy water solutions. Purchase cylinders only from authorized dealers and use quality regulators and hoses. When changing connections, ensure no open flames or electrical appliances are active nearby.
If you suspect a leak, immediately turn off the cylinder valve, ventilate the area, evacuate the space, and avoid operating electrical switches or creating sparks.
