Chinese National Standards
Browse selected Chinese national standards, including mandatory GB standards and recommended GB/T standards prepared for English search and inquiry workflows.
Browse subcategories (2)
GB 17919-2025
UpcomingSafety specification for explosion protection in combustible dust collection system
- Issued
- 2025-10-31
- Effective
- 2026-11-01
GB 5135.4-2025
UpcomingAutomatic sprinkler system—Part4: Dry pipe valves and accelerator
- Issued
- 2025-10-31
- Effective
- 2026-11-01
GB 18320-2025
UpcomingGB 5135.3-2025
UpcomingAutomatic sprinkler system—Part 3:Water spray nozzle
- Issued
- 2025-10-31
- Effective
- 2026-11-01
GB 5135.2-2025
UpcomingAutomatic sprinkler system—Part 2: Wet system alarm valves, retard chamber and water motor alarm
- Issued
- 2025-10-31
- Effective
- 2026-11-01
GB 12978-2025
UpcomingGB 19997-2025
UpcomingGB 11417.3-2025
UpcomingOphthalmic optics—Contact lenses—Part 3:Soft contact lenses
- Issued
- 2025-10-31
- Effective
- 2028-11-01
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