UL 2823 BULLETIN-2014 UL Standard for Safety Measuring and Evaluating Chemical and Particle Emissions From Electronic Equipment Using Dynamic Environmental Chambers (COMMENTS DUE: December 8@ 2014)
"PREFACE UL Environment certifies indoor products for low chemical emissions using testing procedures described herein to cover a breadth of product types and building applications. The science of measuring product emissions developed from research conducted by the Environmental Protection Agency@ Department of Energy@ the Department of Housing and Urban Development@ the Consumer Product Safety Commissions@ California Department of Health Services@ the state of Washington Department of General Administration@ and additional national and international researchers. UL Environment offers product testing and consulting services to manufacturers of products and end users. UL Environment brings together performance based@ field validated standards to define low emitting products and materials for the indoor environment; 2) provide a third party@ non-industry and publicly available certification process for manufactured products; and 3) establish a public directory of certified products for architects@ designers@ specifiers@ purchasers@ and consumers. The following Method incorporates the best-learned practices for testing and evaluating electronic equipment for GREENGUARD Certification@ including computers@ video monitors@ televisions@ DVD players@ cable boxes@ scanners@ receivers@ CD players@ and speakers. Elements of the Method include sample handling and shipment@ sample preparation@ product loadings and descriptions@ environmental chamber exposure@ analytical measurements@ exposure modeling and allowable levels for the GREENGUARD Certification Program. Analytes include total volatile organic compounds (TVOC)@ individual VOCs@ formaldehyde and other aldehydes@ozone@ and fine particulate matter 2.5 micrometers and smaller (PM2.5). All individual VOCs emitting from products are measured as allowed by UL 2823@ GREENGUARD Environmental Labeling Program Method for Measuring and Evaluating Chemical and Particle Emissions From Electronic Equipment Using Dynamic Environmental Chambers@ and each measured VOC is required to meet defined allowable levels. UL 2823 incorporates additional criteria to provide a higher margin of safety for young children. This method reduces allowable chemical levels. It also requires that emissions meet the 1/2 CREL criteria of certain target chemicals as listed in State of CA DHS's ""Standard Practice for the Testing Of Volatile Organic Emissions Sources Using Small Scale Environmental Chambers"" (CA/DHS/EHLB/R-174) and adopted by the California High Performance School (CHPS) Program. UL 2823 requires a review of measured chemical emissions across a broader range of risk based exposure levels established by the US Environmental Protection Agency (EPA)@ the Agency for Toxic Substances and Disease Registry (ATSDR) of the Center for Disease Control (CDC)@ and the State of California Office of Environmental Health Hazard Assessment (OEHHA)@ This further strengthens the criteria by requiring product emissions be less than defined risk-based air concentration levels for both acute (short-term) and chronic (long-term) exposures. This document will be updated as new test protocols and standards become available. Electronic equipment may emit a variety of volatile chemicals into the indoor air space of a building. The following methodology measures total volatile organic compounds (TVOC)@ individual volatile organic compounds (IVOCs)@ formaldehyde and other aldehydes@ ozone and respirable particle emission levels from electronic equipment using test conditions defined to simulate product use in realistic commercial office@ educational@ healthcare and/or residential settings. The levels of emissions are determined by observing the TVOC@ IVOC@ aldehyde@ozone@ and respirable particle (PM2.5) concentrations in a dynamic environmental chamber under specified test conditions. The observed chamber concentration is then converted by a mathematical calculation to an emission rate@ a product specific variable@ and then modeled to obtain room concentration estimates. The quantity of VOCs in the environmental chamber air is determined by gas chromatography/mass spectrometry (GC/MS). The methodology is generally applicable to volatile organic compounds with boiling points from 60??to 290??emitting from individual products. Emissions of selected aldehydes are measured using reverse-phase high-performance liquid chromatography (HPLC) with UV detection. Ozone is measured using a UV-absorbance based ozone analyzer. Respirable particles (PM2.5) are monitored using a 90??ight scattering measurement to continuously determine airborne particle concentrations over time. Specialized analysis of chamber air samples may be conducted for other specific target chemicals as specified for a specific product/project requirement."
UL 2823 BULLETIN-2014 history
1970UL 2823-2018 Greenguard - Certification Program Method for Measuring and Evaluating Chemical and Particle Emissions From Electronic Equipment Using Dynamic Environmental Chambers
2014UL 2823 BULLETIN-2014 UL Standard for Safety Measuring and Evaluating Chemical and Particle Emissions From Electronic Equipment Using Dynamic Environmental Chambers (COMMENTS DUE: December 8@ 2014)
2013UL 2823-2013 Greenguard - Certification Program Method for Measuring and Evaluating Chemical and Particle Emissions From Electronic Equipment Using Dynamic Environmental Chambers