Page:NIOSH Manual of Analytical Methods - 1459.pdf/1

 METHYL ACRYLATE

CH2=CHCOOCH3

MW: 86.09

METHOD: 1459, Issue 1

1459

CAS: 96-33-3

RTECS: AT2800000

EVALUATION: PARTIAL

OSHA : 10 ppm (skin) NIOSH: 10 ppm (skin) ACGIH: 10 ppm (skin) (1 ppm = 3.58 mg/m 3 @ NTP)

PROPERTIES:

Issue 1: 15 August 1994

liquid; BP 80.5 °C; d 0.9574 @ 20 °C; VP 65 mm Hg @ 20 °C; Vapor Density (air = 1 ) 2.95

SYNONYMS: Methyl propenoate, 2-propenoic acid methyl ester.

SAMPLING

MEASUREMENT

SAMPLER:

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

FLOW RATE:

0.01 to 0.2 L/min

VOL-MIN: -MAX:

1 L @ 10 ppm 5L

SHIPMENT:

routine

TECHNIQUE:

GAS CHROMATOGRAPH, FID

ANALYTE:

methyl acrylate

DESORPTION:

1.0 mL carbon disulfide; stand 30 min

INJECTION VOLUME:

5 µL

SAMPLE STABILITY:

unknown

TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:

BLANKS:

2 to 10 field blanks per set

CARRIER GAS:

He, 30 mL/min

COLUMN:

stainless steel, 10 ft x -in, 50/0 FFAP on 100/120 mesh Supelcoport

DETECTOR:

FID

CALIBRATION:

standard solution of methyl acrylate in carbon disulfide with undecane or other suitable internal standards in the range 10 to 350 µg per sample

RANGE:

35 to 350 µg per sample [2]

ACCURACY RANGE STUDIED:

13.9 to 58.4 mg/m 3 [1] (6-L samples)

BIAS:

-10.4%

ˆ ): OVERALL PRECISION (S rT

225 °C 250 °C 70 °C

0.066 ESTIMATED LOD: 10 µg per sample [3]

ACCURACY:

±23.3%

PRECISION (Sr):

0.049

APPLICABILITY: The working range is 2 to 100 ppm (7 to 360 mg/m 3) for a 5-L air sample.

INTERFERENCES: Alternate chromatographic columns to circumvent interferences are SE-54 and SP-1000 fused silica capillary columns [4].

OTHER METHODS: This revises Method S38 [2]. spectrometry for identification of methyl acrylate [5].

An independent analytical method provided by N. Gjoes et al. uses

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