AMINOETHANOL COMPOUNDS II: METHOD 3509, Issue 2, dated 15 August 1994 - Page 4 of 5 The method was further evaluated by spiking 2 m M hexanesulfonic acid impinger solutions with all three ethanolamines, at 2, 10, and 20 times the estimated LOQ, six spikes per analyte at each level, and analyzing them after storage at room temperature (20 °C) either for 2 days or for 21 days. Recovery of all analytes and at all levels tested (42 to 409 µg MEA, 79 to 712 µg DEA, and 117 to 1161 µg TEA) was between 94 and 106% after 3 weeks storage.
REFERENCES: [1] [2] [3]
[4]
[5]
Bolyard, Michele and George Williamson, Method Development Efforts for Ethanolamine Compounds, NIOSH/MRSB, Unpubl. (NIOSH) 1988. Determination of Ethanolamines in Refinery Water, Application Note #39, Dionex Corporation, Sunnyvale, CA, (February, 1982). Bouyoucos, Spiros A. and Richard G. Melcher., Collection of ethanolamines in air and determination by mobile phase ion chromatography, Am. Ind. Hyg. Assoc. J. 47(3), 185-188 (1986). NIOSH Pocket Guide to Chemical Hazards, U.S. Dept. of Health and Human Services, Publ. (NIOSH) 90-117, National Institute for Occupational Safety and Health, Cincinnati, OH 45226 (1990). Foley, G. D., Bolyard, M. L. and L. Blade. Sampling and Determination of Six Specific Amines, presented at the American Industrial Hygiene Conference, San Francisco, CA (1988).
METHOD REVISED BY: George Williamson, NIOSH/DPSE.
TABLE 1. EXPOSURE LIMITS AND PROPERTIES.
Compounds
Exposure limits, ppm OSHA NIOSH ACGIH
Monoethanolamine (MEA)
3
3;* STEL 6
Diethanolamine (DEA)
No PEL
Triethanolamine (TEA)
No PEL
3
No REL
3; STEL 6
3
5 mg/m 3
Properties
liquid; d 1.02 g/mL @ 20 °C; BP 170 5 °C; VP <0.13 kPa (<1 mm Hg); flash point 152 °C
crystals or liquid; d 1.088 g/mL @ 30 °C; MP 28 °C; BP 269 °C; VP <0.001 kPa (0.01 mm Hg); flash point 152 °C
liquid; d 1.124 g/mL @ 20 °C; MP 21.2 °C; BP 335 °C (decomp.); VP 0.001 kPa (<0.01 mm Hg); flash point 191 °C
- Group III Pesticide
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
