TRICHLOROETHYLENE by portable GC
Cl2C=CHCl
MW: 131.39
METHOD: 3701, Issue 2
CAS: 79-01-6
RTECS: KX4550000
EVALUATION: FULL
OSHA : 100 ppm; C 200 ppm; P 300 ppm NIOSH: 25 ppm; C 2 ppm/1 h; carcinogen ACGIH: 50 ppm; 200 ppm STEL; suspect carcinogen (1 ppm = 5.37 mg/m 3 @ NTP)
PROPERTIES:
3701
Issue 1: 15 August 1987 Issue 2: 15 August 1994
liquid; d 1.46 g/mL @ 20 °C; BP 87 °C; MP -86 °C; VP 7.7 kPa (58 mm Hg; 7.6% v/v) @ 20 °C; explosive range 11 to 41% v/v in air
SYNONYMS: trichloroethene; ethylene trichloride; triclene
SAMPLING SAMPLER:
AIR BAG (Tedlar)
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY (PORTABLE), PHOTOIONIZATION DETECTOR
ANALYTE:
trichloroethylene (TCE)
CALIBRATION:
bag standards or calibrated gas mixtures
RANGE:
10 to 1000 ppm
FLOW RATE: 0.02 to 0.05 L/min or higher; fill bag to ≤80% of capacity; spot samples possible (step 2.1.) SAMPLE STABILITY:
BLANKS:
bags should be analyzed as soon after collection as possible ( ≤4 h) clean air, either in bag or from a non-work area
ESTIMATED LOD: 0.25 ng per injection (0.1 ppm for a 1-mL injection PRECISION (Sr):
0.078
ACCURACY RANGE STUDIED:
25 to 100 ppm
BIAS:
not determined
ˆ ): 0.078 OVERALL PRECISION (S rT ACCURACY:
> ± 15%
APPLICABILITY: The working range is 10 to 1000 ppm (54 to 5400 mg/m 3) in relatively non-complex atmospheres where trichloroethylene is known to be present (see EVALUATION OF METHOD).
INTERFERENCES: None found.
OTHER METHODS: Method 1022 [1] uses activated charcoal sampler tubes.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
