Analytical monitoring
Coolant fluids. Neat oils

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...