Page 308 - The Engineering Guide to LEED-New Construction Sustainable Construction for Engineers

LEED Indoor Envir onmental Quality 271

2
Maximum Emission Factor [mg/(m ·h)]
VOC Carpet Cushion Carpet
TVOC (total volatile organic compounds) 1.00 0.5

BHT (butylated hydroxytoluene) 0.30 —
Formaldehyde 0.05 0.05 ∗
4-PC (4-phenylcyclohexene) 0.05 0.05
Styrene — 0.4

∗ To prove that none is used.

TABLE 6.4.3 Maximum Emission Factors for VOCs from Carpet Cushions and from Carpets
per CRI Green Label Website April 11, 2007

• The California Department of Health Services Standard Practice for the Testing
of Volatile Organic Emissions from Various Sources Using Small-Scale
Environmental Chambers, including 2004 addenda can be found at http://
www.cal-iaq.org/VOC/Section01350_7_15_2004_FINAL_ADDENDUM-
2004-01.pdf.
Note that the carpet in IEQc4.3 must meet the CRI Green Label Plus requirements,
and the carpet cushion must meet the CRI Green Label requirements. The cushion
requirement is based on a test of manufacturers’ products for emissions of certain VOCs,
which are updated on an annual basis. The compounds and the maximum emission
factors as given on the CRI Green Label website are listed in Table 6.4.3.
The Green Label Plus requirement in IEQc4.3 is for carpets. This program is listed
on the Green Seal website and is a certification that carpets go through a testing for the
release of total VOCs (TVOCs) and 13 individual chemicals. These chemicals are
• Acetaldehyde
• Benzene
• Caprolactam
• 2-Ethylhexanoic acid
• Formaldehyde
• 1-Methyl-2-pyrrolidinone
• Naphthalene
• Nonanal
• Octanal
• 4-Phenylcyclohexene
• Styrene
• Toluene
• Vinyl acetate