§ 84.53 - Service time; classification.


Latest version.
  • § 84.53 Service time; classification.

    (a) Respirators described in subparts H through L of this part shall be classified, where applicable, as approved for use during the following prescribed service times:

    (1) Four hours;

    (2) Three hours;

    (3) Two hours;

    (4) One hour;

    (5) Forty-five minutes;

    (6) Thirty minutes;

    (7) Fifteen minutes;

    (8) Ten minutes;

    (9) Five minutes; or

    (10) Three minutes.

    (b) Other service times may be prescribed by the Institute.