Given the mass of VOC and mass of exempt solvent per unit volume of coating, determine the mass of VOC per unit volume of coating less exempt solvent.
Let
x = mass of exempt solvent per unit volume of coating
y = mass of VOC per unit volume of coating
d = density of exempt solvent
z = mass of VOC per unit volume of coating less exempt solvent.
Then
z = [y/ (1 - x/d)] or
If more than one solvent is present and the individual volumes and densities are known, use:
d = d1 V1 + d2 V2 + . . . dn Vn
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V1 + V2 + . . . Vn
where
V = volume of each component solvent
TABLE 296.500-1 CALCULATION OF POUNDS VOC/GALLON OF SOLIDS FROM POUNDS VOC/GALLON OF COATING
These calculations shall be determined as follows:
EXAMPLE CONVERSION
GIVEN: COATING OF 3 POUNDS VOC/GALLON OF COATING (LESS WATER AND EXEMPT SOLVENTS) AND
VOC DENSITY OF 7.36 POUNDS VOC/GALLON.
PROBLEM: CONVERT POUNDS VOC/GALLON OF COATING TO POUNDS VOC/GALLON OF SOLIDS.
STEP 1 - WHAT IS THE VOLUME OF VOC IN 1 GALLON OF COATING?
3 POUNDS VOC x 1 GALLON VOC = 0.408 GALLON VOC
GALLON COATING 7.36 POUNDS VOC GALLON COATING
STEP 2 - WHAT IS THE VOLUME OF SOLIDS IN 1 GALLON COATING?
1 GALLON COATING - VOLUME VOC = VOLUME SOLIDS
1 - 0.408 = 0.592 GALLON SOLIDS
STEP 3 - HOW MANY GALLONS OF COATING DOES IT TAKE TO GET A GALLON OF SOLIDS? (INVERSE OF STEP 2)
1 GALLON COATING = 1.689 GALLON COATING
0. 592 GALLON SOLIDS GALLON SOLIDS
STEP 4 - CONVERT 3 POUNDS VOC/GALLON OF COATING TO POUNDS VOC/GALLON OF SOLIDS
3 POUNDS VOC x 1.689 GALLON COATING = 5.07 POUNDS VOC
GALLON COATING GALLON SOLIDS GALLON SOLIDS
ANSWER: 3 POUNDS VOC/GALLON OF COATING (LESS WATER AND EXEMPT SOLVENTS) = 5.07 POUNDS VOC/GALLON OF SOLIDS
Fla. Admin. Code Ann. R. 62-296.500
Rulemaking Authority 403.061 FS. Law Implemented 403.021, 403.031, 403.061, 403.087 FS.
Formerly 17-2.650(1) - (1)(f), Amended 2-2-93, 3-17-94, Formerly 17-296.500, Amended 11-23-94, 1-1-96, 3-11-10, 8-14-19.