SERVICE MANUAL
Page 523
CHAPTER 5
9107
May/12
CHAPTER 5
Page 523
Feb/11
283
SERVICE MANUAL
ISO 9650
Observations
(a) All tests are to be recorded on a sheet similar to sample
provided in Appendix 3.
(b) Carbon dioxide leaking from the cylinder will cause the pink
color of the test solution to be lost and the test solution will
become clear.
(c) If no color change is observed there is no leak of gas from the
cylinder.
(d) The control sample shall not change color during the test.
If a color change takes place, this indicates that the atmos-
phere in the test area is contaminated with carbon dioxide and
tests carried out under this control sample are therefore invali-
dated.
(e) Tests shall be repeated after corrective action has been taken
on the atmosphere, i.e. area ventilated.
NOTE:
This method may also be adapted to check CO
2
leakage from the base of cylinders, by taping a suitable
sized plastic bag over the cylinder. Ensure the welded
seam is inside the bag. The test is then carried out as
per the above method.
4.10.3 Weight testing
Check the cylinder weight. The weight must be the same as that given on
the cylinder data label. The weight recorded on the cylinder data label does
not include the cylinder recoil caps.
WARNING:
INSTALL A RECOIL CAP ON THE OUTLET OF A FULLY
CHARGED GAS CYLINDER BEFORE MOVING IT. THE
GAS CYLINDER CAN BECOME A PROJECTILE IF IT IS
DISCHARGED ACCIDENTALLY AND CAN CAUSE INJURY AND
DEATH.
WARNING:
HOLD THE GAS CYLINDER IN A VICE OR SAFE CLAMPING
MECHANISM WHEN INSTALLING OR REMOVING AN
OPERATING HEAD.
