Page:NIOSH Manual of Analytical Methods - 2513.pdf/1

 ETHYLENE CHLOROHYDRIN

ClCH2CH2OH

MW: 80.51

METHOD: 2513, Issue 2

2513

CAS: 107-07-3

RTECS: KK0875000

EVALUATION: PARTIAL

OSHA : 5 ppm (skin) NIOSH: C 1 ppm (skin) ACGIH: C 1 ppm (skin) (1 ppm = 3.29 mg/m 3 @ NTP)

Issue 1: 15 May 1985 Issue 2: 15 August 1994

PROPERTIES: liquid; d 1.201 g/mL @ 25 °C; BP 129 °C; MP -67 °C; VP 0.67 kPa (5 mm Hg; 6600 ppm) @ 20 °C; explosive range 4.9 to 15.9% v/v in air

SYNONYMS: 2-chloroethanol, glycol chlorohydrin

SAMPLING

MEASUREMENT

SAMPLER:

SOLID SORBENT TUBE (petroleum charcoal, 100 mg/50 mg)

FLOW RATE:

0.01 to 0.2 L/min

VOL-MIN: -MAX:

2 L @ 5 ppm 35 L

SHIPMENT:

routine

TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

ethylene chlorohydrin

DESORPTION:

1 mL 5% (v/v) 2-propanol in CS 2; stand 30 min

INJECTION VOLUME:

5 µL

SAMPLE STABILITY:

not determined

TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:

FIELD BLANKS:

2 to 10 field blanks per set

CARRIER GAS:

N 2, 25 mL/min

COLUMN:

3.0 m x 2-mm ID stainless steel; 10% FFAP on 80/100 mesh Chromosorb WHP

CALIBRATION:

ethylene chlorohydrin in eluent containing internal standard

RANGE:

0.03 to 1 mg per sample [2]

ACCURACY RANGE STUDIED: BIAS:

170 °C 210 °C 130 °C

3

7 to 30 mg/m [1] (20-L samples) - 11.5%

ESTIMATED LOD: 3 µg per sample

ˆ ): 0.076 [1] OVERALL PRECISION (S rT ACCURACY:

± 31.1%

PRECISION (Sr):

0.052 [1]

APPLICABILITY: The working range is 1.5 to 50 mg/m 3 (0.5 to 15 ppm) for a 20-L air sample. During sampling, high humidity may greatly decrease the breakthrough volume.

INTERFERENCES: None identified.

OTHER METHODS: This is Method S103 [2] in a revised format.

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