SCHEDULE 2 Methods of analysis

APPENDIX TO SCHEDULE 2

Part I, Method 2

Figure 4KEY TO FIGURE 4

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

(b) Distillation tube with a splash head and a spherical joint connected at the side to a funnel with a teflon tap for the addition of sodium hydroxide (a suitable rubber bung may be used instead of the spherical joint; the tap may be replaced by a rubber connection with an appropriate clip).

(c) A six-bulb condenser with a spherical joint, fitted with a glass extension tube. (The connection to the distillation tube may be effected by means of a rubber bung instead of a spherical joint).

(d) A 500 ml flask for the collection of the distillate.

• The equipment is made of borosilicate glass.