Page:NIOSH Manual of Analytical Methods - 1022.pdf/1

 TRICHLOROETHYLENE

CCl2=CHCl

MW: 131.39

METHOD: 1022, Issue 2

CAS: 79-01-6

1022

RTECS: KX4550000

EVALUATION: PARTIAL

OSHA : 100 ppm; C 200 ppm; P 300 ppm NIOSH: 25 ppm; C 2 ppm/1 h (waste anesthetic); suspect carcinogen; Group 1 Pesticide ACGIH: 50 ppm; STEL 200 ppm; suspect carcinogen (1 ppm = 5.37 mg/m 3 @ NTP)

PROPERTIES:

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 9.9 kPa (74 mm Hg; 9.8% v/v) @ 25 °C; explosive range 11 to 41% v/v in air

SYNONYMS: trichloroethene; ethylene trichloride; triclene

SAMPLING SAMPLER:

SOLID SORBENT TUBE (coconut shell charcoal, 100 mg/50 mg)

MEASUREMENT TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

trichloroethylene

DESORPTION:

1 mL CS 2; stand 30 min

FLOW RATE: 0.01 to 0.2 L/min VOL-MIN: -MAX:

1 L @ 100 ppm 30 L

SHIPMENT:

routine

SAMPLE STABILITY:

not determined

BLANKS:

2 to 10 field blanks per set

INJECTION VOLUME: 5 µL TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:

ACCURACY 477 to 2025 mg/m 3 (3.4-L samples) [1]

RANGE STUDIED: BIAS:

- 7.19%

ˆ rT): OVERALL PRECISION (S

0.082 [1]

ACCURACY:

± 19.78%

225 °C 250 °C 70 °C

CARRIER GAS:

N 2, 30 mL/min

COLUMN:

3 m x 3-mm OD stainless steel, packed with 10% OV-101 on 100/200 mesh Chromosorb WHP

CALIBRATION:

standard solutions of trichloroethylene in CS 2

RANGE:

0.5 to 10 mg per sample

ESTIMATED LOD: 0.01 mg per sample [2] PRECISION (Sr):

0.038 @ 1.6 to 6.4 mg per sample [1]

APPLICABILITY: The working range is 27 to 875 ppm (150 to 4700 mg/m 3) for a 3.4-L air sample. The method is applicable to STEL determinations. The method was used for samples containing 0.5 to 5 mg trichloroethylene from a tool-degreasing operation [2].

INTERFERENCES: None studied. Alternate columns which have been used are stainless steel, 6 m x 3 mm OD, packed with 10% SP-1000 on 80/100 mesh Supelcoport [2] and fused silica capillary, 60 m x 0.32 mm, coated with 0.25 µm OV-351 [3].

OTHER METHODS: This combines and revises methods S336 [4] and P&CAM 127 [5]. The criteria document method is similar [6]. NIOSH Method 3701 uses a portable gas chromatograph for field readout.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94