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Last reviewed: 17 December 2009 Due for review: 17 December 2011 Custodian: Manager Occupational Safety and Health Aqua doc # 2706375 (pdf version)

WC-OSH-SWMS-012-Chlorine Drum Change

Chlorine Drum Change Training and qualifications • • • • • •

Chlorine module 1 Chlorine module 2 or 3 (depending on draw) Self Contained Breathing Apparatus (SCBA) Crane operation (drum site) Authorised operator on chlorine register Third-party report

Other SWMS/documents that may be required •

SWMS 001 Working Alone or in Isolation

Task specific PPE (In addition to mandatory PPE) • • •

1

Ensure appropriate PPE, tools and equipment including Material Safety Data Sheet (MSDS).

2

Site preparation 1: Turn on fans, wait 2 minutes before opening door then latch door open for whole duration of drum change.

3

Site preparation 2: Check the operation of the safety shower and eye wash.

4

Safe handling of drums with approved mechanical lifting devices.

5

Disconnection and reconnection

6

Label appropriately and reinstate the site- turn off fans and tidy up the work site.

Gloves (nitrile) Single Operator o SCBA must be worn Operator with standby o Operator may use canisterrespirator (preferably SCBA) o Standby person beside door with SCBA donned and 1st operator visible at all times

Safety equipment (Specific to the task) • • • • • • •

Material Safety Data Sheet (MSDS) Appropriate respiratory equipment (above) Ammonia puffer (approved bottle/conc.) see aqua doc # 1080880 Safety shower/eye wash working Multi chlorine spanner – see aqua #1081431 Appropriate chlorine washers – see aqua # 1081434 Approved rubber chlorine mallet – see aqua doc # 1081371

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1 operator: SCBA must be worn 2 operators: Canister-respirator must be worn with 2nd person wearing SCBA and standing beside door Complete the whole disconnection and reconnection without distraction!

This satisfies the requirements for high risk construction work under the national construction safety regulations DOCUMENT UNCONTROLLED WHEN PRINTED


Chlorine Drum Change

1 2 3 4

Action

Hazard and risk

Ensure appropriate PPE, tools and equipment including Material Safety Data Sheet (MSDS).

Exposure to chlorine gas respiratory failure, death (0.1% concentration can be fatal)

• •

Slips/trips from poor housekeeping various physical injuries Manual handling strains and sprains from lifting and wearing SCBA

Site Preparation 1: Turn on fans, wait 2 minutes before opening door and latching door open for whole duration of drum change.

Exposure to chlorine gas respiratory failure, death

• • •

Slips/trips various physical injuries Incorrect chlorine alarm Chlorine reaction with other chemicals explosion, fires

Site Preparation 2: Check safety shower and eye wash • Slip and trip hazards • Other workers/visitors • Position of standby operator

• •

Safe handling of drums with approved mechanical lifting devices.

Disconnection and reconnection

5

6

1 operator: SCBA must be worn 2 operators: Canister-respirator must be worn with 2nd person wearing SCBA and standing beside door Use ammonia puffer to check for leaks

Label appropriately and reinstate the site- turn off fans and tidy up the work site.

Control • • • • • •

Complete JHA and review SWMS or Work Instruction Additional PPE includes gloves and respiratory equipment Review MSDS before commencing work Ensure ammonia puffer used to detect leaks is in date Keep area tidy and free of hazards Bend knees when putting on SCBA and get assistance from other operator

• • • • • •

Turn on fan for 2 minutes before entering building Keep doors to chlorine room latched open always Check gas detector display in safe room before entering building Keep area tidy and free of hazards Contact Operations Centre if required Segregate items such as fuels and other chemicals in a separate store

• •

Exposure to chlorine gas respiratory failure, death Working alone or in isolation if operator performing cylinder change is not visible to standby operator Slips/trips various physical injuries

Check safety shower and eye wash 2nd operator keeps view of 1st operator at all times and positioned with SCBA near closest exit. Remember SCBA checks. Keep area tidy and free of hazards

Crane failure crush injury, severe injury or death

• • • • •

Exposure to chlorine gas respiratory failure, death Poorly controlled drum impact injuries to the body Drum dropping on ground exposure to chlorine gas Slips/trips various physical injuries Bystanders/other workers various injuries, chlorine exposure Exposure to chlorine gas respiratory failure, death

• • • • • • • • • • •

• • • • •

• •

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One safe way or not at all!

Manual handling sprains/strains from work in awkward postures Slips/trips various physical injuries Chlorine reaction with other chemicals explosion, fires Exposure to chlorine gas respiratory failure, death

Manual handling sprains and strains from work in awkward postures Slips/trips various physical injuries

• • • • • •

Maintain a safe distance from load, keep in sight at all times Check certified lifting beam has correct Safe Work Limit (SWL) Check lifting chains/equipment has been inspected and tagged Continue to wear respirator and maintain contact with standby person Lift and lower the drum slowly using crane, ask bystanders to move Do not lift higher than 20cm above ground when moving drums Keep area tidy and safe from hazards Clear area of all other people before commencing work Wear respirator and gloves at all times Use correct washers to maintain seal, use ammonia to detect leaks Adopt comfortable postures whilst disconnecting, change position regularly Keep area tidy and safe from hazards Segregate items such as fuels and other chemicals in a separate store Wear respiratory equipment, seal connections properly, reset ESD if fitted, turn fans off and close door Label drums with appropriate stickers, check gas detector if available Maintain safe postures with reconnection. Take care when removing SCBA Collect all equipment, keep tidy, recall Operations Centre if required

If you are unable to apply appropriate controls you must check with your supervisor before proceeding with any work DOCUMENT UNCONTROLLED WHEN PRINTED

test  

testing the system

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