Hazards of Nitrogen and Catalyst Handling

TEST YOURSELF

1 Whatever its state, the only risk related to nitrogen is suffocation. True -False

2 The smell of nitrogen immediately identifies an oxygen deficient environment.

True /False

3 Testing for flammable gases in pipe s purged with nitrogen does not pose any problems with explosimeters. True /False

4 There is no risk in leaving a bottle of nitrogen in a small room. True /False

5 An air purifying respirator will adequately protect me in an oxygen deficient atmosphere. True /False

6 It is safe to pour liquid nitrogen on myself. True /False

7 Even if I inhale pure nitrogen, I will be safe for a few minutes thanks to the oxygen stored in my blood.

True /False

8 Nitrogen is not the only gas that can cause suffocation. True /False

9 Nitrogen is only used on the site for preparing equipment for maintenance (never for other purposes or in the tank farms ). True /False

10 Unregenerated catalyst can be pyrophoric. True /False

11 Handling, unloading, storage and shipment of unregenerated catalysts is normally carried out under nitrogen cover. True /False

2 Catalyst dust is not a threat to our health and therefore air-line respirators are not required.

True /False

13 Dust masks always provide adequate protection to prevent inhalation of  catalyst particles.

True /False

14 Specialist contractors for inert gas confined space entry projects use conventional SCBA because they are trained underwater divers. True /False

15 Providing the atmosphere is between 19.5% and 23.5% oxygen, it is always safe to enter the confined space. True /False

16 Open manholes are dangerous because technicians are likely to put their  heads inside.

True /False

17 Oxygen deficient atmospheres can be created outside a confined space.

True /False

18 An occupational health risk assessment is required prior to any possible exposure to catalyst, to protect the technicians and the environment from harmful effects. True /False

19 Conventional breathing apparatus normally found in refineries provides adequate protection for working in an inert / nitrogen-filled confined space. True /False

20 All air compressors provide the quality of air necessary for breathing apparatus. True /False