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NC-v4 MRc4:Building product disclosure and optimization - material ingredients

CAS Number

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Samantha Lee
Sustainability Coordinator
LEEDuser Basic Member
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I have two questions about MRc4- Material Ingredients. Is a CASRN the same thing as CAS Number? Also, has anyone used the CAS number from a SDS as credit compliance for this credit?

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Samantha Lee
Sustainability Coordinator
LEEDuser Basic Member
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Mon, 11/11/2019 - 19:19

In addition, in the BPDO Calculator, what is the difference between "Manf Inv-GS" and "Manf Inv-GHS"?
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Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
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Tue, 11/12/2019 - 15:32

Yes, CASRN = CAS Number. The latter is more informal. "CAS RN" is the most correct. A CAS RN from an SDS can be a useful data point, but not independent of some formal inventory. This is more in the manufacturer's court than in the LEED project team's, so unless you are advising the manufacturer on how to comply with requirements, I would not say that this is a factor for you. "Manf Inv-GS" = Manufacturer Inventory with GreenScreen scores for hazard profile information. "Manf Inv-GHS" = same, but with GHS hazard warnings instead of GreenScreen. I can give more qualitative guidance/advice on what to look for and what has more value, but I'll keep to simply answering the questions you asked for now!

Tue, 09/06/2022 - 17:41

The CAS registry number can be lookup on google with keyword "cas number lookup"

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