Page:NIOSH Manual of Analytical Methods - 1007.pdf/1

 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