VINYL CHLORIDE
CH2=CHCl
MW: 62.50
METHOD: 1007, Issue 2
CAS: 75-01-4
1007
RTECS: KU9625000
EVALUATION: FULL
OSHA : 1 ppm; C 5 ppm NIOSH: lowest feasible; carcinogen ACGIH: 5 ppm; carcinogen (1 ppm = 2.56 mg/m 3 @ NTP)
PROPERTIES:
Issue 1: 15 February 1984 Issue 2: 15 August 1994
BP -14 °C; vapor density 2.2 (air = 1); lower explosive limit = 4% v/v in air
SYNONYMS: chloroethylene; chloroethethene.
SAMPLING SAMPLER:
MEASUREMENT
SOLID SORBENT TUBE (2 tandem tubes, each with 150 mg activated coconut charcoal)
TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
vinyl chloride
FLOW RATE: 0.05 L/min
DESORPTION:
1 mL carbon disulfide; 30 min
VOL-MIN: -MAX:
0.7 L 5L
INJECTION ALIQUOT:
5 µL
SHIPMENT:
separate primary and backup tubes and cap each
COLUMN:
stainless steel, 6.1 m x 3.2 mm, 10% SE-30 on 80/100 mesh Chromosorb W (AW-DMCS)
SAMPLE STABILITY:
10 days @ 25 °C
CARRIER GAS:
He, 40 mL/min
BLANKS:
2 to 10 field blanks per set
TEMPERATURE-INJECTOR: -DETECTOR: -COLUMN:
230 C 230 C 60 C
ACCURACY RANGE STUDIED:
1 to 64 mg/m 3 [1]
BIAS:
- 6%
ˆ ): OVERALL PRECISION (S rT
0.06 [1]
ACCURACY:
± 17.8%
CALIBRATION:
solutions of vinyl chloride in CS 2
RANGE:
2 to 200 µg per sample [1]
ESTIMATED LOD: 0.04 µg per sample [1] PRECISION (Sr):
not determined
APPLICABILITY: The working range is 0.4 to 40 mg/m 3 (0.16 to 16 ppm) for a 5-L air sample. The method is applicable to 15-min samples at concentrations of 1 ppm or higher.
INTERFERENCES: Other than the possibility of loss of sample upon storage of two weeks or more at room temperature, none have been noted.
OTHER METHODS: This is a revision of P&CAM 178 [2].
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
