Division C.3 Apparatus and Equipment

Usual laboratory apparatus and in particular the following:

1. C.3.1.

   Single-pan hydrostatic balance with a sensitivity of 1 mg.

2. C.3.2.

   Float with a volume of at least 20 ml, specially adapted to the balance, suspended with a thread of diameter not exceeding 0,1 mm.

3. C.3.3.

   Measuring cylinder bearing a level mark. The float must be capable of being contained completely within the volume of the cylinder located below the mark; the surface of the liquid may only be penetrated by the supporting thread. The measuring cylinder must have an internal diameter at least 6 mm larger than that of the float.

4. C.3.4.

   Thermometer (or temperature-measuring probe) graduated in degrees and tenths of a degree from 10 to 40 °C, calibrated to 0,05 °C.

5. C.3.5.

   Weights, calibrated by a recognised certifying body.