[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR56.4604]

[Page 266]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 56--SAFETY AND HEALTH STANDARDS--SURFACE METAL AND NONMETAL MINES--Table of Contents
 
                 Subpart C--Fire Prevention and Control
 
Sec. 56.4604  Preparation of pipelines or containers.

    Before welding, cutting, or applying heat with an open flame to 
pipelines or containers that have contained flammable or combustible 
liquids, flammable gases, or explosive solids, the pipelines or 
containers shall be--
    (a) Drained, ventilated, and thoroughly cleaned of any residue;
    (b) Vented to prevent pressure build-up during the application of 
heat; and
    (c)(1) Filled with an inert gas or water, where compatible; or
    (2) Determined to be free of flammable gases by a flammable gas 
detection device prior to and at frequent intervals during the 
application of heat.

    Appendix I to Subpart C of Part 56--National Consensus Standards

    Mine operators seeking further information in the area of fire 
prevention and control may consult the following national consensus 
standards.

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            MSHA standard                 National consensus standard
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Secs.  56.4200, 56.4201.............  NFPA No. 10--Portable Fire
                                       Extinguisher.
                                      NFPA No. 11--Low Expansion Foam
                                       and Combined Agent Systems.
                                      NFPA No. 11A--High Expansion Foam
                                       Systems.
                                      NFPA No. 12--Carbon Dioxide
                                       Extinguishing Systems.
                                      NFPA No. 12A--Halon 1301
                                       Extinguishing Systems.
                                      NFPA No. 13--Water Sprinkler
                                       Systems.
                                      NFPA No. 14--Standpipe and Hose
                                       Systems.
                                      NFPA No. 15--Water Spray Fixed
                                       Systems.
                                      NFPA No. 16--Foam Water Spray
                                       Systems.
                                      NFPA No. 17--Dry-Chemical
                                       Extinguishing Systems.
                                      NFPA No. 121--Mobile Surface
                                       Mining Equipment.
                                      NFPA No. 291--Testing and
                                       Marketing Hydrants.
                                      NFPA No. 1962--Care, Use, and
                                       Maintenance of Fire Hose,
                                       Connections, and Nozzles.
Sec.  56.4202.......................  NFPA No. 14--Standpipe and Hose
                                       Systems.
                                      NFPA No. 291--Testing and
                                       Marketing Hydrants.
Sec.  56.4203.......................  NFPA No. 10--Portable Fire
                                       Extinguishers.
Sec.  56.4230.......................  NFPA No. 10--Portable Fire
                                       Extinguishers.
                                      NFPA No. 121--Mobile Surface
                                       Mining Equipment.
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