Aula 0. Q1 – Trecho 2 [17:35 – 20:04 ]

Vídeo Original: https://youtu.be/JCQnx29au4g?feature=shared

Transcrição

17:41

work air monitoring instruments are also used at our projects as another means of

protecting our workers

while it is not common there is the potential for Airborne chemicals or similar hazards to exist at some of our project sites

depending upon the tasks being performed and the specific area

the most common air monitor we use is a 4 gas meter this instrument measures four different  potential hazards in the air

the level of oxygen

the amount of flammables

the level of carbon monoxide

and the level of hydrogen sulfide

once the monitor is calibrated it will alarm if any one of these hazards is present at an unacceptable level

and therefore warns you of the hazard before you work in the area

air monitoring instruments are very important for your safety when used at our project sites

be sure that you understand completely how the air  monitor works and always follow the recommendations made from the monitoring results

it could very well save your life

this is a chart that describes the readings of the for gas meter with related action levels and the corrective  actions that must be taken when these levels are determined unsafe

if there are any questions with the readings

always

Evacuate the area until your questions are addressed and resolved

the following gas level readings require that you either Evacuate the area

ventilate the area

or both again if there are any questions in your mind about the readings always air on the side of caution

that means evacuate

for O2 or oxygen the Action level is required for a reading less than 19.5%

for the amount of gas or vapor in the air capable of producing a flash  fire in the presence of an ignition Source better known as LEL a percentage  greater than 10% demands protective measures

for CO or carbon monoxide the Action level is required for a percentage greater than 35 parts per million or PPM

and for H2S or hydrogen sulfide a reading greater than 10 parts per million requires that action be taken

if you are unsure on how to operate or

read the four gas meter be sure to talk with your supervisor

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