SCHEDULE 2METHODS OF ANALYSIS

APPENDIX TO SCHEDULE 2

KEY TO FIGURE 5

  1. a

    A round-bottomed, long-necked flask of 750 or 1,000 ml capacity with a bell mouth.

  2. b

    Distillation tube with a splash head and a spherical joint.

  3. c

    Elbow tube with a spherical joint and a drip cone. (A suitable rubber connection may be used instead of the spherical joint).

  4. d

    A six-bulb condenser with an extension tube mounted on a rubber bung holding a bubble trap.

  5. e

    A 750 ml receiving flask.

  6. f

    A bubble trap to prevent loss of ammonia.