2. Product selection

2.1 Types of soluble oils

Soluble oils are generally referred to as:

• soluble;

• emulsions;

• refrigerants;

• aqueous fluids.

As mentioned above, there are three types of soluble oils. They are distinguished by their concentration of mineral oil or renewable natural ester (e.g., from rapeseed):

• emulsions (Figure 5 a): mineral oil > 40%;

• Semi-synthetic fluids, also...