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What air monitoring needs to be performed prior to entering a confined space?

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Question added by Turki Alhajri PMP NEBOSH , EHS / HSE Manager , Tabuk Pharmaceuticals
Date Posted: 2015/01/15
خالد عبدالقادر
by خالد عبدالقادر , fire fighting engineer , abuodeh consulting company

Ensure entry person can apply job in safe way 

REJEESH SIVARAMAN
by REJEESH SIVARAMAN , HSE Engineer , ALMEER Technical Services Co. W.L.L (EPC)

Gas testing must be done prior to enter  to make sure the

safe oxygen level 

Poisson Gas 

Explosive Gas  

Alok Tiwari
by Alok Tiwari , EHS Assistant Manager , Larsen & Toubro

Confined space environment could be contaminated by poisonous gases, excessive or deficiency of oxygen level, flammable gases like methane should be identified before entering in the confined space. some gases which have more atomic weight than air which could be stick with wall or corner of confined space and can be missed being identified during gas testing, to prevent this situation air blowing should be done in confined space and then only gas monitoring has taken place.

MOHAMMAD M NOMANI
by MOHAMMAD M NOMANI , Senior Safety Engineer , Oryx-GTL-Qatar

GAS TEST

OXYGEN TEST

OXYGEN 21%

FLAMMABILITY TEST

LEL 0%

TOXICITY TEST

PPM 0

Bernard Monte Ongwae
by Bernard Monte Ongwae , Technical Integrity Expert - ORPIC Oman. , Oman Refineries and Petroleum Industries (ORPIC)

1. Toxic

2. Flamable

3. Oxygen Levels

Must be performed continously as long as work is in progress.

sivaprakash  k
by sivaprakash k , GTN Engineering India Ltd

represents the latest leading edge technology in sensor / transmitters today.

HARISH KUMAR
by HARISH KUMAR , Process Engineer , Gulf Spic General Trading and Contracting Company., WLL

Oxygen percentage to be checked. Also the Confined space needs to be verified for Toxic gases like H2S, Other hydrocarbons.

Explosivity of the Confined space entry needs to checked.

Mussa  Abdulla
by Mussa Abdulla , HSE Officer , M/S Heisco Al Ahmadi KOC QHSE Central Workshop

Prior to entery inside confined space Monitor shall be tested and calibrited with 13 % of oxygen level which helps the monitor to give correct reading of gaeses during the gases test. Oxygen deficency Oxygen >19.5 to <23.5 Toxic Gaeses level in ppm And Flammable Gases. LEL %

Syed Muhammad Jawad Amin
by Syed Muhammad Jawad Amin , Process Engineer , Lotte Chemical Pakistan Limited

Oxygen percentage and LEL monitoring if there is any flamable substance stored inside the vessel or if there is any possibility of flamable substance ingress in the confined space during the entry. 

Shamshe Ali
by Shamshe Ali , HSSE Manager / Safety Specialist , Astad Project Management

Confined Space Permits must be required before entering from all concern departments and authority

Haider badawi
by Haider badawi , QHSE , Altaaqa Global CAT Rental Power

H2S , CO , CO2  tests are  very important  before entering any confined spaces . 

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