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