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NC-v4 EQc2:Low emitting materials

Maximum threshold for General VOC emissions compliance?

Hi, I am not finding any info to suggest a maximum VOC limit allowable under the General Emissions. Does "5.0 mg/m3 or more" really include everything greater than 5.0mg? I am finding some fire sealants are notably above this, but have the CPHv1.1-2010 test results so does that suffice?

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Fri, 02/17/2017 - 14:34

From what I have researched and understand, the actual value does not matter, what matters is that the test was done and the results available for project teams to review. Hopefully someone who has submitted a project or CIR can speak up, but that is what I was able to find when I had a similar question earlier this year.

Fri, 02/17/2017 - 14:42

That's also my understanding. The products have to be tested according to CPHv1.1-2010 and have to fulfill the requirements of the included list of certain VOCs. But the total VOC is not limited in the emission requirement. But you still have to fulfill the additional VOC content requirements for wet-applied products (CARB, SCM, SCAQMD etc.)

Fri, 02/17/2017 - 21:23

Leanne & Bjorn- Thanks for the quick feedback - good to know I wasn't missing anything. So, wet (g/L) VOC limits are enforced/clearly stipulated and CPHv1.1-2010 general emissions (ug/m3) are more about product transparency - at least as far as LEEDv4 is currently concerned!

Sat, 02/18/2017 - 12:18

Caution, please. Maybe this is about wording ... but it was made clear by US GBC that for wet applied products, both VOC content limits (in the product) and CDPH VOC emissions limits (in the air after application) will apply. This is valid for LEED v4, not for earlier versions. Total VOC (TVOC) is another term which shall characterize the sum of all emitted VOC (in the air). Total VOC must not be mixed up with VOC content, even though this also is sort of all (or you could say total) VOC - but in the product, not all VOC or TVOC emitted into air.

Sun, 02/19/2017 - 05:53

To put it all together, there are 3 different requirements for wet applied materials: 1. Meet the general emissions requirements (CDPH standard method 2010) 2. Report the range of TVOC (for transparency only) 3. Meet the g/L content requirements. Items 1 and 2 are true for all products eligible for this credit. Item 3 is unique to wet-applied materials.

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