1,1,2,2-TETRACHLOROETHANE
Cl2CHCHCl2
M.W.: 167.85
METHOD: 1019, Issue 2
CAS: 79-34-5
1019
RTECS: KI8575000
EVALUATION: PARTIAL
OSHA : 5 ppm (skin) NIOSH: 1 ppm; carcinogen; Group I Pesticide ACGIH: 1 ppm (skin) (1 ppm = 6.86 mg/m 3 @ NTP)
PROPERTIES:
Issue 1: 15 May 1989 Issue 2: 15 August 1994
liquid; d 1.5866 g/mL @ 25 °C; BP 146.5 °C; MP -44 °C; VP 0.8 kPa (6 mm Hg; 0.8% v/v) @ 25 °C; nonflammable
SYNONYMS: acetylene tetrachloride; bonoform; 1,1-dichloro-2,2-dichloroethane
SAMPLING SAMPLER:
SOLID SORBENT TUBE (petroleum charcoal, 100 mg/50 mg)
FLOW RATE:
0.01 to 0.2 L/min
VOL-MIN: -MAX:
3 L @ 5 ppm 30 L
SHIPMENT:
routine
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
1,1,2,2-tetrachloroethane
DESORPTION:
1 mL CS 2; stand 30 min
INJECTION VOLUME:
5 µL
SAMPLE STABILITY:
not determined
TEMPERATURE-INJECTOR: -DETECTOR: -COLUMN:
175 °C 230 °C 160 °C
BLANKS:
2 to 10 field blanks per set
CARRIER GAS:
N 2, 25 mL/min
COLUMN:
stainless steel, 3 m x 3-mm OD, packed with 10% FFAP on 80/100 mesh Chromosorb WHP
CALIBRATION:
standard solutions of analyte in CS 2
RANGE:
0.1 to 1 mg per sample
ACCURACY 18 to 74 mg/m 3 [1] (10-L samples)
RANGE STUDIED: BIAS:
6.6%
ESTIMATED LOD: 0.01 mg per sample [2]
ˆ ): 0.057 [1] OVERALL PRECISION (S rT ACCURACY:
± 16.7%
PRECISION (Sr):
0.016 @ 0.16 to 0.64 mg per sample [1]
APPLICABILITY: The working range is 1.5 to 15 ppm (10 to 100 mg/m 3) for a 10-L air sample. Capillary columns may be substituted for the packed column, with appropriate changes in instrumental conditions.
INTERFERENCES: None known.
OTHER METHODS: This revises Method S124 [3] and the method which appears in the criteria document [4].
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
