PROCEDURE:
RISK RANKING:
BUILDING ENTRY
MEDIUM
HAZARD ASSESSMENT:
HAZARD
1. Flammable vapors /
LEL.
POTENTIAL EFFECTS
CONTROL
1. Vapors may ignite
1. Personal or portable
and cause flash fire.
2. Worker could
2. O2 deficiency.
3. Not performing the
building entry procedure.
experience oxygen
deprivation and
become unconscious.
3. Possibility of coming
into contact with
hazardous product.
monitor to be used to
determine if flammable
vapors or LEL are
present.
2. Personal or portable
monitor to be used to
determine if 02 levels
are at acceptable limits.
3. Post warning sign or
this procedure at
entrance to buildings not
equipped with fixed H2S
or LEL detection.
SAFETY EQUIPMENT:
Safety glasses with side shields, hard hat, steel toe boots, FR clothing, personal H2S monitor
or 4-way monitor, communication (cell/radio), SCBA or SABA (if required).
PROCEDURE:
1. Prior to entering location, ensure ALL personal protective equipment is being worn and is
applicable to the hazards and atmosphere in which you are working.
2. When arriving to location, check wind direction. If possible, park up wind at least 25 meters
(80 ft) from the building.
3. Ensure the portable monitor calibration is current and the unit is in the “ON” position.
4. Approach building slowly. Look and listen for irregularities (i.e. vent lines hissing.)
PROCEDURE: BUILDING ENTRY ‐ 1 ‐ Date of Preparation: June 29, 2004 Date of Revision: June 29, 2004 PROCEDURE:
BUILDING ENTRY
5. If operator does not notice anything out of the ordinary, stand clear of and slowly open the
building door (B.C. open the door porthole), then insert the monitor to the inside of the
building for 30 seconds, (if monitor alarms, leave to gas free area). Go to step # 8.
6. If no alarm sounds after 30 seconds has elapsed, check monitor for
acceptable limits (Maximum concentration for H2S is 10 PPM). (Maximum concentration
for explosive gas is 20% LEL). (Minimum Oxygen deficiency level is 19.5% 02).
7. If no hazardous condition exists, carry on with normal daily routine.
8. Should personal monitor reach any of the alarm points. .immediately vacate the building.
10 PPM H2S and >, leave area, notify back-up personnel and don SCBA. Go to building
and check again for H2S (if > 100 PPM,summon standby person). lif >10% LEL, leave area
with doors/windows open, recheck concentration, determine source and isolate if < 19.5%
02 entry to building is permitted only with SABA or SCBA breathing equipment worn Back up man to be present under these circumstances.
. .
-
9. Once standby person arrives, together don SCBA and one operator can go into building
and determine cause of gas concentration, while other operator watches from safe
distance.
10.Once leak is determined, rectify problem, confirm the acceptable limits in the building and
carry on with normal daily routine.
11.Operator is to perform pre-entry testing every time they enter a building that has the
possibility of presenting them to exposure of a hazardous product / gas, and must
document the pre-entry findings at a minimum of once per month and should be able to
make those findings available upon request. This information must then be kept on file.
Failure to comply with this section of the procedure could result in fines levied against
Haltech Testing Inc. should the WCB / OH&S check on an operator.
Buildings with fixed gas and fire detection do not apply.
PROCEDURE: BUILDING ENTRY ‐ 2 ‐ Date of Preparation: June 29, 2004 Date of Revision: June 29, 2004