A Model for Predicting Endotoxin Concentrations in Metalworking Fluid Sumps in Small Machine Shops

摘要

Methods: In British Columbia, Canada, nineteen small machine shops which used water- based metalworking fluids (MWF) were examined. One bulk MWF sample was taken from each independent sump(N=140) and tested for endotoxin using the Limulus Amoebocyte Lysate assay. Factors that might influence the MWF sump endotoxin concentration were Investigated using mixed effect multiple regression modelling to control for repeated meas- Ures within shops.