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AS 4774.1:2026
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AS 4774.1:2026 Work in compressed air and hyperbaric facilities Work in tunnels, shafts and caissons
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AS 4774.1:2026 specifies requirements to ensure safe working conditions for people entering and working under increased ambient pressure (excluding diving operations and hyperbaric treatment operations (refer to AS 4774.2), and to promote uniformity of practice in relation to the health and safety of persons working in or entering shafts, tunnels, tunnelling machines and compressed air caissons pressurized above atmospheric pressure
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AS 4774.1:2026 Work in compressed air and hyperbaric facilities Work in tunnels, shafts and caissons