Page:NIOSH Manual of Analytical Methods - 1019.pdf/1

 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