TB150

Question 1

On gas meter when the 1/3rd battery alarm goes off how much longer will battery last

Answer 1

Approx 20 mins

Question 2

When is bump test required?

Answer 2

Any time after meter registers readings in IDLH

Question 3

When does gas meter need to be exposed to fresh air

Answer 3

Before and after hse

Question 4

When are gas meter calibrations done

Answer 4

Every 6 months and then the meters self start indicates a problem

Question 5

How many and what time of batteries for gas meter

Answer 5

2 AA

Question 6

What is TWA in reference to gas meter

Answer 6

Time weighted average.

Level a worker can be exposed to a substance based on 8/hr a day 40 hour week

Question 7

What is STEL in regards to gas meter

Answer 7

Short term exposure limit

15 minutes exposure without side affects

Question 8

What are the IDLH measurements in Ppm

Answer 8

CO - 1200 PPM

H2S - 100 PPM

HCN - 50 PPM

Question 9

What’re the lower and upper alarm levels on 5 gas?

Answer 9

02 19.5-23.5

CO 25PPM- 50PPM

H2S 10PPM-15PPM

HCN- 4.7PPM- 10PPM

CH4- 10%LEL 20%LEL

Question 10

What’re the 5 items measured by 5 gas?

Answer 10

Oxygen
Carbon monoxide
Hydrogen Sulfide
Hydrogen Cyanide
Methane

Question 11

Gas meter batteries last no longer than

Answer 11

2-3 weeks

Question 12

5 gas batteries must be replaced at

Answer 12

Less than 3/4