Singapore Standards

SS 548:2022

Code of practice for the selection, use and maintenance of respiratory protective devices

SS 548:2022 (Redline)

Code of practice for the selection, use and maintenance of respiratory protective devices

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

Code of practice for installation, operation and maintenance of electric passenger and goods...

SS 551:2022

Code of practice for earthing

SS 551:2022 (Redline)

Code of practice for earthing

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