Page:NIOSH Manual of Analytical Methods - 1620.pdf/1

From Wikisource
Jump to navigation Jump to search
This page needs to be proofread.

ISOPROPYL GLYCIDYL ETHER

C6H12 O2

MW: 116.16

METHOD: 1620, Issue 1

CAS: 4016-14-2

1620

RTECS: TZ3500000

EVALUATION: PARTIAL

OSHA : 50 ppm NIOSH: C 50 ppm (15 min) ACGIH: 50 ppm; STEL 75 ppm (1 ppm = 4.75 mg/m 3 @ NTP)

PROPERTIES:

Issue 1: 15 August 1994

liquid; d 0.919 g/mL @ 20 °C; VP 1.25 kPa (9.4 mm Hg, 1.2%) @ 25 °C

SYNONYMS: glycidyl isopropyl ether; 1,2-epoxy-3-isopropoxypropane; (1-methylethoxy)methyl)oxirane; IGE

SAMPLING

MEASUREMENT

SAMPLER:

SOLID SORBENT TUBE (coconut shell charcoal; 100 mg/50 mg)

TECHNIQUE:

GAS CHROMATOGRAPHY, FID

FLOW RATE:

0.01 to 0.2 L/min

ANALYTE:

isopropyl glycidyl ether

VOL-MIN: -MAX:

1 L @ 50 ppm 30 L

DESORPTION:

0.5 mL CS 2, 30 min

SHIPMENT:

routine (refrigerate at lab)

TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:

SAMPLE STABILITY:

not determined

INJECTION VOLUME:

5 µL

BLANKS:

2 to 10 field blanks per set

CARRIER GAS:

N 2, 50 mL/min

COLUMN:

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

CALIBRATION:

standard solutions of isopropyl glycidyl ether in CS 2

RANGE:

0.25 to 5 mg per sample

205 °C 270 °C 115 °C

ACCURACY RANGE STUDIED:

121 to 484 mg/m 3 [1] (10-L samples)

BIAS:

-5.5%

ˆ ): 0.067 [1] OVERALL PRECISION (S rT ACCURACY:

±14.6%

ESTIMATED LOD: not determined PRECISION (Sr):

0.020 [1]

APPLICABILITY: The working range is 5 to 105 ppm (25 to 500 mg/m 3) for a 10-L air sample. An appropriate capillary column may be used for better resolution and sensitivity. The sorbent's capacity for the analyte has not been determined under conditions of high relative humidity.

INTERFERENCES: None identified.

OTHER METHODS: This is Method S77 [2] in a revised format.

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