[Code of Federal Regulations]
[Title 42, Volume 1]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 42CFR84.53]

[Page 517]
 
                         TITLE 42--PUBLIC HEALTH
 
    CHAPTER I--PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN 
                                SERVICES
 
PART 84_APPROVAL OF RESPIRATORY PROTECTIVE DEVICES--Table of Contents
 
  Subpart F_Classification of Approved Respirators; Scope of Approval; 
                    Atmospheric Hazards; Service Time
 
Sec. 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.