GLYCIDOL
C3H6O 2
MW : 74.08
METHOD: 1608, Issue 2
CAS: 556-52-5
1608
RTECS: UB4375000
EVALUATION: FULL
OSHA : 50 ppm NIOSH: 25 ppm ACGIH: 25 ppm (1 ppm = 3.03 mg/m 3 @ NTP)
Issue 1: 15 May 1985 Issue 2: 15 August 1994
PROPERTIES: liquid; d 1.117 g/mL @ 20 °C; BP 167 °C (decomposes); MP - 45 °C; VP 0.12 kPa (0.9 mm Hg); 0.12% v/v) @ 20 °C
SYNONYMS: 2,3-epoxy-1-propanol; 2-(hydroxymethyl)oxirane; oxiranemethanol
SAMPLING SAMPLER:
SOLID SORBENT TUBE (coconut shell charcoal, 100 mg/50 mg)
MEASUREMENT TECHNIQUE:
GAS CHROMATOGRAPHY, FID
ANALYTE:
glycidol
DESORPTION:
0.5-mL tetrahydrofuran; stand 30 min
FLOW RATE: 0.01 to 1 L/min VOL-MIN: -MAX:
5 L @ 150 mg/m 3 100 L
SHIPMENT:
at 4 °C
SAMPLE STABILITY:
at least 7 days @ 4 °C [1]
BLANKS:
2 to 10 field blanks per set
INJECTION VOLUME: 5 µL TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:
225 °C 260 °C 155 °C
CARRIER GAS:
N 2, 25 mL/min
COLUMN:
3 m x 2-mm ID stainless steel; 10% FFAP on 100/120 mesh Chromosorb W-HP
CALIBRATION:
glycidol in tetrahydrofuran
RANGE:
0.8 to 22 mg per sample
ACCURACY RANGE STUDIED:
73 to 310 mg/m 3 [2] (50-L samples)
BIAS:
- 2.9%
ˆ rT): 0.080 [1] OVERALL PRECISION (S ACCURACY:
ESTIMATED LOD: not determined PRECISION (Sr):
0.016 [1]
± 13.2%
APPLICABILITY: The working range is 16 to 450 mg/m 3 (5 to 150 ppm) for a 50-L air sample. During sampling, high humidity may greatly decrease the breakthrough volume.
INTERFERENCES: None identified.
OTHER METHODS: This is Method S70 [2] in a revised format.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
