Hydrostatic pressure test, test-date stamp and certificate for BRTA fitness, at our group's dedicated CNG cylinder retest facility, following the Department of Explosives guideline.
Call 01765-289999 Call 01765-290000Why retesting matters
- The law: CNG Rules 2005 require a retest every 5 years.
- BRTA checks the retest certificate before fitness renewal.
- Your cylinder holds gas at about 200 bar. Rust and dents weaken it from inside, where you can't see.
- Safety for your family and passengers.
Do you need a retest now?
- 5 years since manufacture or the last test
- Fitness renewal is due
- Rust, dents or bulges on the cylinder
- After an accident or fire
- Used car with unknown cylinder history
How we test your cylinder
- Check papers, serial number and dates
- Release the gas safely and remove the valve
- Inspect inside and outside for corrosion, cracks and dents
- Hydrostatic test: filled with water and pressurised to 300 bar
- Dry, refit the valve and leak test
- Stamp the test date and issue the certificate
Technical details
| Retest interval | Every 5 years |
| Working pressure | 200 bar |
| Test pressure | 300 bar (1.5 times working pressure) |
| Cylinder sizes | 40 to 130 WLC |
| Time | Same day: drop off in the morning, collect the same evening |
| You receive | Test stamp and certificate |
CNG cylinder retest price
From ৳2,800
For 40 and 60 WLC cylinders. Larger cylinders are priced by water capacity. Call for a quote.
If your cylinder fails
A failed cylinder must not go back on the road. We can fit a new CNG cylinder (60 to 130 WLC, made in UAE or India) the same day. See CNG conversion and cylinders.
Hours and location
Every day 9:30 am to 7:30 pm
Plot 68, Road 3, Janata Housing, Ring Road, Adabor, Dhaka-1207
Questions and answers
How often must a CNG cylinder be retested?
Every 5 years, under the CNG Rules 2005. BRTA checks the retest certificate when you renew your vehicle fitness.
How long does a CNG cylinder retest take?
Same day. Drop your car off in the morning and collect it the same evening.
What does a CNG cylinder retest cost in Dhaka?
From ৳2,800 for 40 and 60 WLC cylinders. Larger cylinders are priced by water capacity. Call 01765289999 for a quote.
What documents do I get after the retest?
A retest certificate for BRTA fitness, and the new test date stamped on the cylinder.
What happens if my cylinder fails the retest?
A failed cylinder must not go back on the road. We can fit a new CNG cylinder (60 to 130 WLC, made in UAE or India) the same day.