ASTM F1764-97(2012)
(Guide)Standard Guide for Selection of Hardline Communication Systems for Confined-Space Rescue
Standard Guide for Selection of Hardline Communication Systems for Confined-Space Rescue
SIGNIFICANCE AND USE
Because of the many unique requirements of permit-required confined space rescue operations and the specific construction and composition of some confined spaces, hardline communications systems may be the only type that will meet the requirements for working within these spaces. Some of these requirements are set forth in Federal Regulation and some by safe operating procedures developed for working in confined spaces by industry.
This guide is not meant to preclude the use of other types of communication systems in confined-space rescue.
SCOPE
1.1 This guide covers recommended criteria for the selection of hardwire communication systems for use in permit-required confined-space rescue operations.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:F1764 −97 (Reapproved 2012)
Standard Guide for
Selection of Hardline Communication Systems for Confined-
Space Rescue
This standard is issued under the fixed designation F1764; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 hardline communication system—any communication
system where all users are connected to the system by a
1.1 This guide covers recommended criteria for the selec-
hardline or wire.
tion of hardwire communication systems for use in permit-
required confined-space rescue operations.
4. Significance and Use
1.2 This standard does not purport to address all of the
4.1 Because of the many unique requirements of permit-
safety concerns, if any, associated with its use. It is the
required confined space rescue operations and the specific
responsibility of the user of this standard to establish appro-
construction and composition of some confined spaces, hard-
priate safety and health practices and determine the applica-
line communications systems may be the only type that will
bility of regulatory limitations prior to use.
meet the requirements for working within these spaces. Some
of these requirements are set forth in Federal Regulation and
2. Referenced Documents
some by safe operating procedures developed for working in
2.1 ASTM Standards:
confined spaces by industry.
F1490 Terminology Relating to Search and Rescue (With-
4.2 This guide is not meant to preclude the use of other
drawn 2011)
types of communication systems in confined-space rescue.
2.2 Federal Standards:
29 Code of Federal Regulations 1910.146 Permit Required 5. System Requirements
Confined Spaces
5.1 System Safety—The system must be safe for use in the
29 Code of Federal Regulations 1910.7 Definition and Re-
atmosphere, or potential atmosphere, within the space.
quirementsforaNationalRecognizedTestingLaboratory
NOTE 1—See Annex A1.
2.3 National Code:
5.2 The system must have continuous, hands-free voice
National Electrical Code (NEC)/NFPA 70
communications capability.
NOTE 2—See X1.1.
3. Terminology
5.3 The system must be dedicated and private so operations
3.1 Definitions of Terms Specific to This Standard:
cannot be interfered with by outsiders not involved with the
3.1.1 confined space rescue—rescue operations within
rescue.
spaces that meet the definition of “permit-required confined
5.4 The system shall not affect the readings of other safety
space” in Fed. Std. 29 CFR 1910.146.
equipment (that is, gas detectors).
5.5 Systems that are battery powered must have a low-
This guide is under the jurisdiction of ASTM Committee F32 on Search and
battery warning or a backup power source that provides a
Rescue and is the direct responsibility of Subcommittee F32.01 on Equipment,
minimum of 30 min before communications are lost.
Testing, and Maintenance.
Current edition approved July 1, 2012. Published August 2012. Originally
5.6 The system must accommodate a minimum of three
approved in 1997. Last previous edition approved in 2007 as F1764 – 97(2007).
users.
DOI: 10.1520/F1764-97R12.
NOTE 3—See X1.2.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.7 Thesystemshouldallowforcommunicationbetweenall
Standards volume information, refer to the standard’s Document Summary page on
entrants as well as with the attendant.
the ASTM website.
NOTE 4—See X1.3.
The last approved version of this historical standard is referenced on
www.astm.org.
5.8 The system must work in conjunction with the personal
Available from Occupational Safety and Health Administration (OSHA), 200
protective equipment (PPE) necessary to work in the environ-
Constitution Ave., NW, Washington, DC 20210, http://www.osha.gov.
ment within the space.
Available from National Fire Protection Association (NFPA), 1 Batterymarch
Park, Quincy, MA 02169-7471, http://www.nfpa.org. NOTE 5—See X1.4.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1764−97 (2012)
5.9 The system must be impervious to the chemicals within
the space.
6. Keywords
6.1 confined space; hardline
ANNEX
(Mandatory Information)
A1. INHERENT SAFETY
A1.1 Equipment that requires electrical power to operate A1.1.) Division 1 locations are more hazardous than Division
may be a source of ignition in the presence of flammable gases 2, therefore the test protocols for Division 1 are more stringent.
or vapors, combustible dusts, or ignitable fibers. Equipment
Assuch,equipmentcertifiedforDivision1isalsoapprovedfor
that must operate in potentially flammable atmospheres must
Division 2. Hardline systems that only have limited approval,
be unable to cause ignition (inherently safe) in those atmo-
when used only in atmospheres for which they are approved,
spheres.Theycanbecertifiedasintrinsicallysafeorexplosion-
meet this guide. (See Note A1.2.) The NFPA does not certify
proof. Rescue teams that only work in known hazards, such as
equipment. Testing and certification must be done by a
on-site rescue teams, may use equipment approved for only
Nationally Recognized Test Laboratory (NRTL) that has been
those hazards. Rescue teams that respond to unknown hazards,
accredited by OSHA in accordance with 29 CFR 1910.7. All
such as fire d
...
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