ETHYL CHLORIDE
CH3CH2Cl
MW: 64.52
METHOD: 2519, Issue 2
CAS: 75-00-3
2519
RTECS: KH7525000
EVALUATION: FULL
OSHA : 1000 ppm NIOSH: handle with caution ACGIH: 1000 ppm (1 ppm = 2.64 mg/m 3 @ NTP)
Issue 1: 15 May 1985 Issue 2: 15 August 1994
PROPERTIES: gas; BP 12.2 °C; vapor density (air = 1) 2.22; explosive range 3.8 to 15.4% v/v in air
SYNONYMS: chloroethane; monochloroethane
SAMPLING SAMPLER:
MEASUREMENT
SOLID SORBENT TUBES (2 coconut shell charcoal tubes, 400 mg and 200 mg)
TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
ethyl chloride
FLOW RATE:
0.02 to 0.05 L/min
DESORPTION:
2 mL CS 2; stand 30 min
VOL-MIN: -MAX:
0.3 L 3L
INJECTION VOLUME:
SHIPMENT:
separate front and back tubes
TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:
SAMPLE STABILITY:
at least 7 days @ 25 °C [1]
CARRIER GAS:
N 2 or He, 30 mL/min
FIELD BLANKS:
2 to 10 field blanks per set
COLUMN:
stainless steel, 6 m x 3 mm OD, 10% FFAP on 100/120 mesh Chromosorb WHP
CALIBRATION:
standard ethyl chloride solutions in CS 2 with internal standard
RANGE:
1 to 16 mg per sample
ACCURACY
5 µL 160 °C 190 °C 110 °C
3
RANGE STUDIED:
1586 to 6500 mg/m [1] (3-L samples)
BIAS:
- 1.4%
ESTIMATED LOD: 0.01 mg per sample
ˆ ): 0.096 [1] OVERALL PRECISION (S rT ACCURACY:
± 21.3%
PRECISION (Sr):
0.024 @ 3.4 to 15 mg per sample [1]
APPLICABILITY: The working range is 330 to 5300 mg/m 3 (130 to 2000 ppm) for a 3-L air sample; lower concentrations may be measured if desorption efficiency is adequate.
INTERFERENCES: None known.
OTHER METHODS: This revises Method S105 [2].
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
