N.J. Admin. Code § 7:27B-3.10
Current through Register Vol. 56, No. 21, November 4, 2024
Section 7:27B-3.10 - Procedures for the determination of volatile organic compounds in surface coating formulations(a) The method in this section is applicable for the determination of the VOC contained in formulations used in surface coating operations. Any alternative test method shall be submitted to the Department for review pursuant to N.J.A.C. 7:27B-3.2(c), (d) and (e).(b) This method is based upon the determination of the amount of VOC and water, if present, in a surface coating formulation, the density of the surface coating formulation, and the density of the volatile fraction of the surface quality.(c) The procedure for this section shall be as follows: 1. Completely fill a container with a representative sample of the surface coating formulation to be analyzed. Seal the container so that the VOC present will not escape; and2. Classify each surface coating material as follows: i. Class I: General solvent type paints (oil base), varnishes and lacquers including clear and pigmented varnishes and lacquers and coatings not clearly belonging to Class II; orii. Class II: Water-thinned coatings including emulsions, latex paints and colored enamels.(d) The coating samples shall be analyzed as follows: 1. Class I surface coatings shall be analyzed as follows: i. Determine the density of the formulation using the procedure specified in ASTM Designation D 1475-60, "Standard Method for Test for Density of Paint, Varnish, Lacquer, and Related Products" ( N.J.A.C. 7:27B-3.18, Reference 7);ii. Determine the VOC content by using the procedure specified in ASTM Designation D 2369-81, "Standard Method of Test for Volatile Content of Coatings" ( N.J.A.C. 7:27B-3.18, Reference 8);iii. Calculate the VOC content in kg/L as follows: Click here to view table.
iv. Sources included in a mathematical combination regulated by N.J.A.C. 7:27-16.5(a) shall be analyzed as follows: (1) Separate the volatile fraction from the solids either by high speed centrifuge, ASTM D2698-73, "Standard Test Method for the Determination of the Pigment Content of Solvent Reducibic Paints by High Speed Centrifuging" ( N.J.A.C. 7:27B-3.18, Reference 12), or by distillation, ASTM D95-83, "Standard Test Method for Determining Water in Petroleum and Bituminous Materials by Distillation" ( N.J.A.C. 7:27B-3.18, Reference 13). ASTM D95-83 shall be modified by not adding the required solvent and continuing the distillation until the sample is dry. Measure the volume V and the weight W of the volatile fraction (see Appendix I);(2) Calculate the density of the VOC fraction in gm/ml as follows: | Where: |
| W=weight of the volatile fraction |
| V=volume of the volatile fraction |
| (3) Convert density VOC from gm/ml to lb/gal as follows: |
| D(voc)lb/gal=8.345 D(VOC) gm/ml |
2. Class II surface coatings shall be analyzed as follows:i. Determine the density of the formulation using the procedure specified in ASTM Designation D 1475-60, "Standard Method for Test for Density of Paint, Varnish, Lacquer, and Related Products" ( N.J.A.C. 7:27B-3.18, Reference 7);ii. Determine the water content of the formulation using the procedure specified in ASTM D4017-81, "Standard Test Method for Water in Paints and Paint Materials" by Karl Fisher ( N.J.A.C. 7:27B-3.18, Reference 9);iii. Determine the VOC content by using the procedure specified in ASTM Designation D2369-81, "Standard Method of Test for Volatile Content of Coatings" ( N.J.A.C. 7:27B-3.18, Reference 8);v. Sources included in a mathematical combination shall be analyzed as follows: (1) Separate the volatile fraction (including water if present) from the solids either by high speed centrifuge, using ASTM D2698-73, "Standard Test Method for the Determination of Pigment, Content of Solvent Reducibly Paints by High Speed Centrifuging" ( N.J.A.C. 7:27B-3.18, Reference 12), or by distillation, ASTM D95-83, "Standard Test Method for Determining Water in Petroleum and Bituminous and Materials by Distillation" ( N.J.A.C. 7:27B-3.18, Reference 13). ASTM D95-83 shall be modified by not adding the required solvent and continuing the distillation until the sample is dry and by purging the distillation apparatus with 5-10 CC/min air or nitrogen. Measure the volume V (mix) and the weight W (mix) of the volatile fraction. See Appendix I.(2) Calculate the density of the volatile fraction in gm/ml. | D(mix)= | W(mix) |
| ........ |
| V(mix) |
| Where: |
| W(mix)=weight of the volatile fraction |
| V(mix)=volume of the volatile fraction |
(3) Calculate the density of the VOC in gm/ml. | D(VOC) gm/ml= | (1 - P) W(mix) D(w) D(mix) |
| ........................................ |
| D(w) W(mix) P W (mix) D(mix) |
| Where: |
| P=percentage of water (%) |
| W(mix)=weight of the volatile fraction (gm) |
| D(mix)=density of the volatile fraction (gm/ml) |
| D(w)=density of water (gm/ml) |
(4) Convert density of the volatile mixture from gm/ml to lb/gal as follows: | D(mix)lb/gal=8.345D(mix)gm/ml |
N.J. Admin. Code § 7:27B-3.10
Amended by R.1992 d.102, effective 3/2/1992 (operative March 28, 1992).
See: 23 New Jersey Register 1858(b), 23 New Jersey Register 2119(a), 24 New Jersey Register 792(a).
"VOS" replaced by "VOC".