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?

In safety data sheets the calcium diformat is labeled with REACH registration number 01-2119486476-24-xxxx

Therefore I would think that it is included in the REACH lists but in the REACH...

We've gotten a response from reviewers that HPDs we've submitted "do not include compliant lists of materials ingredients" and then they call out CASRN 65997-19-5, which is steel in our USG...

I am a master's student at State University of New York College of Environmental Science and Forestry doing my thesis in Barriers in implementing material transparency in LEED v4 projects.

How does material which don't have any chemical content OR no chemical used during its manufacturing but is a permanent building material, comply with credit? For example Granite OR marble, these...

Hello there,

Option 1 accepts the following as documentation: 

• Document to demonstrate the chemical inventory of the product to at least 0.1% (1000ppm).
...

I think I know the answer, but worth checking with the group.

We have a bunch of product/materials on our project that have more than one material ingredient document (HPD, Declare,...

Can you tell me how many ingredients in building products have completed the Greenscreen analysis process and where a list of these reports can be found which would include the Benchmark assigned...

Tristan Roberts Technical Director The Laurentia Project, HPDC LEEDuser Expert 11455 thumbs up October 26, 2018- 11:42 am Dennis, I would recommend reviewing the guidance here, and posting questions to that forum: https://leeduser.buildinggreen.com/credit/Pilot-Credits/IPpc91 cheers.:) Log in or register to post comments ...

Question about HPDs with Content Inventory marked as GHS SDS.

LEEDv4 Reference guide mentions Globally Harmonized Systems of Classification and lableing of Chemical rev.6 (2015)(GHS) as an...