Page:NIOSH Manual of Analytical Methods - 1616.pdf/1



n-BUTYL GLYCIDYL ETHER

1616

C7H14O2   MW: 130.19   CAS: 2426-08-6   RTECS: TX4200000 METHOD: 1616, Issue 1

EVALUATION: PARTIAL

OSHA:	 50 ppm NIOSH:	C 5.6 ppm; 15 min ACGIH:	 25 ppm (1 ppm = 5.32 mg/m³ @ NTP)

Issue 1: 15 August 1994

PROPERTIES:	 liquid; d 0.9087 g/mL @ 20 °C; BP 164 °C; VP 0.43 kPa (3.2 mm Hg, 4200 ppm) @ 20 °C

SYNONYMS:	 1,2-epoxy-3-butoxypropane; butoxymethyloxirane; BGE SAMPLING SAMPLER:	 SOLID SORBENT TUBE (coconut shell charcoal; 100 mg/50 mg)

MEASUREMENT TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

n-butyl glycidyl ether

DESORPTION:

0.5 mL CS2, 30 min

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

15 L @ 25 ppm 30 L

SHIPMENT:	 routine (refrigerate at lab)

TEMPERATURE-INJECTION:	180 °C -DETECTOR:	275 °C -COLUMN:	130 °C

SAMPLE STABILITY:	 not determined

INJECTION VOLUME:

5 µL

BLANKS:

CARRIER GAS:

N2, 50 mL/min

COLUMN:

stainless steel, 3.2-mm ID × 3 m, packed with 10% FFAP on 80/100 mesh Chromosorb W-AW DMCS

CALIBRATION:

standard solutions of n-butyl glycidyl ether in CS2

RANGE:

1.6 to 6.4 mg per sample

2 to 10 field blanks per set ACCURACY

RANGE STUDIED:

133 to 542 mg/m³ [1] (10-L samples)

BIAS:

−16.1% @ 133 mg/m³ [1] −1.0% @ 259 to 542 mg/m³

OVERALL PRECISION :	0.074 [1]

ESTIMATED LOD:	 not determined ACCURACY:

±15.5% @ 259 to 592 mg/m³ ±30.6% @ 133 mg/m³

PRECISION :

0.016 [1]

APPLICABILITY: The working range is 15 to 60 ppm (80 to 320 mg/m³) for a 20-L air sample. Because of unexpected bias at the lowest test level and the possibility of poor desorption efficiency at low loadings, a sample volume of at least 15 L is recommended. This method has not been evaluated for short-term exposures at 5.6 ppm. An appropriate capillary column may be used for better resolution and sensitivity. INTERFERENCES: None identified. OTHER METHODS: This is Method S81 [2] in a revised format.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition