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Article | REF: BM7066 V1

Coolant fluids. Neat oils

Authors: Benoît BROQUERIE, Julien THIL

Publication date: November 10, 2025 | Lire en français

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    5. Analytical monitoring

    To limit health risks for employees and for technical and economic reasons, it is advisable to monitor various parameters during use. The INRS, a generalist organization in occupational health and safety, recommends monitoring the following, for example:

    • the pH according to the supplier's recommendations;

    • the concentration of the active ingredient according to the supplier's recommendations;

    • the nitrite content in the event of the actual or suspected presence of secondary amines. This must not exceed 20 mg/L. –1 ;

    • The microorganism content must not exceed 10 6 CFU/ml –1 . This technical criterion is defined...

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