LEED v5 BD+C Rating System_November 2025_clean - Page 180
Extracted Content
v1.2 2017, Section 3.9.4; or an alternative calculation method if full method description is included in test report.
If the TVOC levels exceed 500 µg/m [3], investigate for potential issues by comparing the individual VOC levels from the gas chromatography-mass spectrometry (GC/MS) results to associated cognizant authority health-based limits. Correct any identified issues and retest if necessary.
Test for the individual VOCs listed in Table 3 using an allowed test method and demonstrate that the contaminants do not exceed the concentration limits listed in the table. Laboratories that conduct the tests must be accredited under ISO/IEC 17025 for the test methods they use.
Table 3. Volatile Organic Compound Limits
| Contaminant (CAS#) | Concentration Limit (µg/m3) | Allowed Test Methods |
|---|---|---|
| Formaldehyde 50-00-0 | 20 µg/m3 (16 ppb) | ISO 16000-3, 4 EPA TO-11a EPA comp. IP-6A ASTM D5197-16 |
| Acetaldehyde 75-07-0 | 140 µg/m3 | 140 µg/m3 |
| Benzene 71-43-2 | 3 µg/m3 | ISO 16000-6 EPA IP-1 EPA TO-17 EPA TO-15 ISO 16017-1, 2 ASTM D6196-15 |
| Hexane (n-) 110-54-3 | 7,000 µg/m3 | 7,000 µg/m3 |
| Naphthalene 91-20-3 | 9 µg/m3 | 9 µg/m3 |
| Phenol 108-95-2 | 200 µg/m3 | 200 µg/m3 |
| Styrene 100-42-5 | 900 µg/m3 | 900 µg/m3 |
| Tetrachloroethylene 127-18-4 | 35 µg/m3 | 35 µg/m3 |
| Toluene 108-88-3 | 300 µg/m3 | 300 µg/m3 |
| Vinyl acetate 108-05-4 | 200 µg/m3 | 200 µg/m3 |
| Dichlorobenzene (1,4-) 106-46-7 | 800 µg/m3 | 800 µg/m3 |
| Xylenes—total 108-38-3, 95-47-6, and 106-42-3 | 700 µg/m3 | 700 µg/m3 |
AND/OR
OPTION 2. CONTINUOUS INDOOR AIR MONITORING (1 POINT)
Provide indoor air monitors for all the following parameters:
- Carbon dioxide (CO2)
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, November 2025 Edition 173