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Analytical method research for metalworking fluids at the National Institute for Occupational Safety and Health (NIOSH).

Authors
Glaser-R; Pretty-J; Brown-K; Arnold-J; Lunsford-RA; Park-SH
Source
Gefahrstoffe - Reinhaltung der Luft 2003 Jun; 63(6):237-240
NIOSHTIC No.
20035229
Abstract
Exposure to certain metalworking fluids (MWFs) has been related to occupational asthma, hypersensitivity pneumonitis (HP), and possibly to cancer. NIOSH recommends that exposure to MWF aerosols be limited to 0.4 mg/m(3) measured as thoracic particulate or 0.5 mg/m(3) measured as total particulate. Method 5524, a sampling and analytical method for MWF issued by the National Institute for Occupational Safety and Health (NIOSH) to support the standard, is described. This technique separates MWF from commingled particulate by extraction with a ternary blend of methylene chloride, methanol, and toluene. Despite lowered exposure limits, occupational disease due to MWF is still observed, indicating further analyses of MWF samples may be needed to isolate causative agents. A NIOSH analytical research program for metalworking fluids which employs liquid chromatographic techniques to separate and classify major components of the MWF according to chemical class is discussed. The analysis of biocides and nitro-samines using an electrospray-mass spectrometric technique is also described. Miscellaneous other analytical issues are also addressed.
Keywords
Bronchial-asthma; Respiratory-system-disorders; Pulmonary-system-disorders; Pulmonary-disorders; Lung-disease; Lung-disorders; Metalworking-fluids; Metalworking-industry; Metalworking; Analytical-processes
CODEN
GRLUFZ
Publication Date
20030601
Document Type
Journal Article
Fiscal Year
2003
NTIS Accession No.
NTIS Price
Issue of Publication
6
ISSN
0949-8036
NIOSH Division
DART
Source Name
Gefahrstoffe - Reinhaltung der Luft
State
OH
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