Paragraph 1
The milk shall be pasteurised, that is to say —
it shall be heated to and maintained for a period of at least 30 minutes at a temperature of not less than 62.8degC. and not more than 65.6degC., and immediately after the termination of the said period shall be cooled to a temperature of not more than 6degC.; or
it shall be heated to and maintained for a period of at least 15 seconds at a temperature of not less than 71.7degC. and not more than 78.3degC., and immediately after the termination of the said period shall be cooled to a temperature of not more than 6degC. and the apparatus in which the milk is pasteurised shall be approved by the local authority; or
it shall be heated to and maintained at such temperatures for such period as may be specified by the local authority with the approval of the Secretary of State and subsequently cooled to a temperature of not more than 6degC.