Regulations & Technical Documents
Curated regulations and international standards across IAQ, occupational safety and cleanroom engineering.
Regulations, schedules and standards
Indoor Air Quality Management Act (Full Text)
Taiwan's Indoor Air Quality Management Act including standard limits for each pollutant.
Open referenceIndoor Air Quality Standards (NIEA)
Taiwan Ministry of Environment indoor air quality standards — permissible limits for each pollutant.
Open referenceOccupational Safety and Health Act (Full Text)
Taiwan Ministry of Labor Occupational Safety and Health Act, including workplace monitoring requirements.
Open referenceNSF/ANSI 49 Biosafety Cabinet Standard Overview
Summary of the Class II biosafety cabinet performance verification standard — test items and acceptance criteria.
Download coming soonISO 14644 Cleanroom Standard Series
Overview of ISO 14644-1/2/3 cleanroom classification, monitoring and test methods.
Download coming soonInspection Frequency Reference Table
Recommended testing cadence per regulatory and international standards, with annual and quarterly planning suggestions.
Download coming soonThe four global standards SYE follows
All SYE verification services follow these standards, ensuring service quality meets the highest global benchmarks.
International Organization for Standardization
Cleanroom classification ISO 14644 and laboratory competence ISO 17025 — SYE verification services fully align with the ISO suite.
NSF International
NSF/ANSI 49 is the definitive international standard for biosafety cabinets (BSCs). SYE holds full NSF 49 verification capability.
National Environmental Balancing Bureau
NEBB cleanroom acceptance-test procedures — the most authoritative HVAC balancing standard in the US.
American Society of Heating, Refrigerating and Air-Conditioning Engineers
ASHRAE 170 for healthcare facilities ventilation — the key reference for operating rooms and ICUs.
Recommended testing frequency by service
| Service | Recommended Frequency | Applicable Regulation / Standard | Notes |
|---|---|---|---|
| Indoor Air Quality (IAQ) | Annually (announced venues) | IAQ Management Act | Mandatory for announced venues |
| BSC Verification | Annually | NSF/ANSI 49 | Required after HEPA replacement |
| Cleanroom ISO Class | Twice a year | ISO 14644-2 | Adjust by classification |
| HEPA Leak Testing | Annually | ISO 14644-3 | Annual preventive maintenance |
| Respirator Fit Testing | Every 2 years | CNS 14755 | Retest on facial change |
| Workplace Monitoring | Every 6 months | Occupational Safety & Health Act | Specific hazard factors |
| HVAC Commissioning | Annually | ASHRAE / NEBB | Recommended at season change |
Questions about regulations?
SYE's engineers know every environmental regulation inside-out — reach out for compliance advice.