FAQs
SS 548:2022
Code of practice for the selection, use and maintenance of respiratory protective devices
SS 548:2022 (Redline)
SS 549:2009
Code of practice for selection, use, care and maintenance of hearing protectors
SS 550:2020 (Redline)
Code of practice for installation, operation and maintenance of electric passenger and goods...
SS 550:2020 + A1: 2022
SS 551:2022
Code of practice for earthing
SS 551:2022 (Redline)
SS 553:2026
Code of practice for air-conditioning and mechanical ventilation in buildings
SS 554:2026
Code of practice for indoor air quality in air-conditioned buildings