At our CNG cylinder testing center in Patna, we perform degassing and testing of CNG cylinders. The cylinders are fully degassed till they show zero reading for the absence of flammable gas when tested with explosives meter before subjection for further tests. All provisions of the relevant Indian standard code of practice for cylinders inclusive visual inspection are observed ISO:9001.

Some of the steps for testing followed from our end are as follows :

  • De-Valving

  • Purging of each cylinder individually

  • Internal cleaning

  • Visual inspection

  • Wire brushing

  • Weighing

  • Hydrostatic stretch test

  • Internal Drying

  • Stamping

  • Leak testing of cylinder

  • Painting of Cylinder

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