21 (1) A diving contractor who conducts a diving operation must not conduct or permit the beginning or continuation of the diving operation unless
(c) the quantities referred to in subparagraphs (a)(ii) and (iii) are available for immediate use at a flow rate, temperature and pressure that are safe for the user.
(2) A diving contractor must not conduct a diving operation unless
(a) any breathing mixture to be used in the diving operation is
(ii) supplied at temperature and humidity levels that are safe; and
16 A diving contractor who conducts a diving operation must not use or permit to be used a diving bell in the diving operation unless the diving bell
(o) is fitted with equipment to enable occupants of the diving bell to monitor the temperature and the oxygen and carbon dioxide levels within the diving bell;
(s) if manufactured after December 31, 1990,
(ii) is fitted with a device to record continuously and to preserve at least the last recorded four hours of data respecting temperature, oxygen levels, depth, time, oral communications, internal and external ambient pressure and the quantity of breathing mixture and electrical power available for use in an emergency and, where practicablee, carbon dioxide and humidity levels; and
1 The following definitions apply in these Regulations.
appropriate breathing mixture means, in relation to a diving operation, a breathing mixture that is suitable, in terms of composition, temperature and pressure, for the diving plant and equipment used in the diving operation, for the work to be undertaken and for the conditions under which and the depth at which the diving operation is to be conducted. (mélange respiratoire approprié)
environmental conditions means conditions that may affect a diving operation and includes
(d) air and water temperatures;
CENTRAL NERVOUS SYSTEM: Power & tone of limbs normal? Yes/No Normal sensation to pinprick? Yes/No Light touch? Yes/No Temperature? Yes/No Vibration? Yes/No Proprioception normal? Yes/No Cranial nerves normal? Yes/No