The required frequency of testing varies by industry and risk level, as outlined in AS/NZS 3760:2022:
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Construction & demolition sites – Every 3 months
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Factories, workshops, and industrial environments – Every 6 months
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Commercial offices & retail stores – Every 12 months
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Hostile environments (damp, dusty, or exposed areas) – Every 12 months
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Hotels, motels, schools, and low-risk areas – Every 5 years
