IEQ4.1 Aerosol Adhesives conversion

%VOC by weight essentially reports "how much of this product's total density counts as VOC?" So to convert it into a density measure, you would take (% VOC by weight)/100 and multiply it by the product's total density. You should do this for both the allowable and the actual content. I think the solids content measure is more relevant to PM emissions, but I could be wrong about this. Regardless, I recommend you contact the product manufacturer to find allowable %VOC and actual %. This doesn't seem to apply to your case but it might to others: if you are not given density but instead given specific gravity, you can convert sg to density in g/L by multiplying it by 1000 and tacking on the g/L unit. This is because specific gravity is a ratio of density (g/mL) over the density of water at 4*C (g/mL). The density of water is 1, so multiplying specific gravity by 1 g/mL will give you the unit. Then you multiply by 1000 to turn g/mL to g/L. I just learned this as well, and I found ADEQ's "How to Use an MSDS or Product Data Sheet for Air Emissions" article to be somewhat helpful. But watch out for how it lists everything as pounds/gallon instead of grams/liter. Hope this helped!