N.J. Admin. Code § 7:27B-3.12

Current through Register Vol. 56, No. 19, October 7, 2024

Section 7:27B-3.12 - Procedures for the determination of volatile organic compounds in cutback and emulsified asphalts

(a) The method in this section is applicable for the determination of VOC in cutback or emulsified asphalts. For the same circumstances as described above, any alternative test method shall be submitted to the Department for review pursuant to 7:27B-3.2(c), (d) and (e).

(b) This method is based upon the separation by distillation of the more volatile organic constituents from cutback and emulsified asphalts. A representative sample of the cutback or emulsified asphalt is subjected to distillation at a controlled rate to a temperature of 347 [degree]F (175 [degree]C) and the weight and volume of the resulting distillate excluding water is determined.

(c) The procedure for this section shall be as follows:

1. Obtain a representative sample of the cutback or emulsified asphalt.

2. Analyze the sample as follows:

i. Distill at 347 [degree]F (175 [degree]C) a measured weight to the nearest 0.1 gm using the distillation apparatus described in ASTM Designation D 402-76 "Distillation of Cut-Back Asphaltic (Bituminous) Products" (7:27B-3.18, Reference 10);

ii. Determine the specific gravity of the Cut-Back or Emulsified Asphalt by ASTM Designation D-70-76 "Specific Gravity of Semi-Solid Bituminous Materials" (7:27B-3.18, Reference 11); and

iii. Collect and measure to the nearest .5 ml the volume of the distillate excluding any water present.

3. The calculations shall be performed as follows:

i. Calculate the sample volume from the sample weight and its density using the following formula:

volume of sample (cc)=	sample grams
.............
density gms/cc

ii. Calculate and report the VOC distillate as a volume percent of the total sample using the following formula:

Volume %=	Volume VOC distillate x 100
..............................
Volume Sample

N.J. Admin. Code § 7:27B-3.12

Amended by R.1992 d.102, effective 3/2/1992 (operative March 28, 1992).
See: 23 New Jersey Register 1858(b), 24 New Jersey Register 792(a).
"VOS" replaced by "VOC".