6. Apparatus
6.1 Thermometer, having the following range and conforming to the requirements prescribed in Specification E 1 or in the specifications for IP Standard Thermometers:
6.2 Erlenmeyer Flask, 125-mL, glass, to serve as a thermometer jacket.
6.3 Cork or Rubber Stopper, for attaching the thermometer to the Erlenmeyer flask.