Specially denatured spirit of the strength of not less than 60 degrees over proof may be issued to soap manufacturers provided that it is denatured with the following denaturants :-(a)half per cent caustic soda;(b)three per cent castor oil soap;(c)one per cent of the volume of wood naptha or methyl alcohol. The specifications of caustic soda and caster oil soap and alcohol are given as follows:-Caustic soda to be used should contain at least 90 per cent active Sodium Hydroxide and when dissolved in water should form a clear solution.Caster oil soap should be made from pure filtered caster oil with a filtered caustic soda lye made from 76 per cent N 2 degree or 98 per cent caustic soda. The soap should not contain more than 28 per cent or less than 25 per cent of water;
