A method for suppressing the growth of mycobacteria associated with hypersensitivity pneumonitis, in particular Mycobacterium immunogenum, in metalworking fluids is described. The method uses antimicrobial or biocidal compositions which include a metal complex comprising disodium monocopper (II) citrate and an isothiazolone mixture preferably comprising 5-chloro-2-methyl-4-isothiazolin-3-one 2-methyl-4-isothiazolin-3-one. Also described are methods for detecting and identifying the mycobacteria.

 
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< Method for treating a medium with ultrasonic transducers

> Apparatus and methods for collecting sludge from the floor of a settler basin

> Apparatus comprising a disposable device and reusable instrument for synthesizing chemical compounds, and for testing chemical compounds for solubility

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