How do I determine the quantity of extremely hazardous substances present for certain forms of solids?

For the three forms of solids that are listed in § 355.15(a)(1) through (3), use these instructions to determine the quantity of extremely hazardous substance present: (a) Solid in powdered form with a particle size less than 100 microns. Multiply the weight percent of solid with a particle size less than 100 microns in a particular container by the total weight of solid in the container. (b) Solid in solution. Multiply the weight percent of the non-reactive solid in solution in a particular container by the total weight of solution in that container. Then multiply by 0.2. Note to paragraph ( b ): This reduction in quantity must not be used to determine the amount present at one-time at a facility for reporting under 40 CFR 370.10. (c) Solid in molten form. Multiply the weight of the non-reactive solid in molten form by 0.3. Note to paragraph ( c ): This reduction in quantity must not be used to determine the amount present at one-time at a facility for reporting under 40 CFR 370.10. [73 FR 65462, Nov. 3, 2008, as amended at 77 FR 16688, Mar. 22, 2012]