ASTM F1764-97(2002)
(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
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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F 1764 – 97 (Reapproved 2002)
Standard Guide for
Selection of Hardline Communication Systems for Confined-
Space Rescue
This standard is issued under the fixed designation F 1764; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope construction and composition of some confined spaces, hard-
line communications systems may be the only type that will
1.1 This guide covers recommended criteria for the selec-
meet the requirements for working within these spaces. Some
tion of hardwire communication systems for use in permit-
of these requirements are set forth in Federal Regulation and
required confined-space rescue operations.
some by safe operating procedures developed for working in
1.2 This standard does not purport to address all of the
confined spaces by industry.
safety concerns, if any, associated with its use. It is the
4.2 This guide is not meant to preclude the use of other
responsibility of the user of this standard to establish appro-
types of communication systems in confined-space rescue.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. System Requirements
2. Referenced Documents 5.1 System Safety—The system must be safe for use in the
atmosphere, or potential atmosphere, within the space.
2.1 ASTM Standards:
2 5.2 The system must have continuous, hands-free voice
F 1490 Terminology Relating to Search and Rescue
communications capability.
2.2 Federal Standards:
5.3 The system must be dedicated and private so operations
29 Code of Federal Regulations 1910.146 Permit Required
cannot be interfered with by outsiders not involved with the
Confined Spaces
rescue.
29 Code of Federal Regulations 1910.7 Definition and
5.4 The system shall not affect the readings of other safety
Requirements for a National Recognized Testing Labora-
equipment (that is, gas detectors).
tory
5.5 Systems that are battery powered must have a low-
2.3 National Code:
battery warning or a backup power source that provides a
National Electrical Code (NEC)/NFPA 70
minimum of 30 min before communications are lost.
3. Terminology
5.6 The system must accommodate a minimum of three
users.
3.1 Definitions of Terms Specific to This Standard:
5.7 Thesystemshouldallowforcommunicationbetweenall
3.1.1 confined space rescue—rescue operations within
entrants as well as with the attendant.
spaces that meet the definition of “permit-required confined
5.8 The system must work in conjunction with the personal
space” in Fed. Std. 29 CFR 1910.146.
protective equipment (PPE) necessary to work in the environ-
3.1.2 hardline communication system—any communication
ment within the space.
system where all users are connected to the system by a
5.9 The system must be impervious to the chemicals within
hardline or wire.
the space.
4. Significance and Use
6. Keywords
4.1 Because of the many unique requirements of permit-
6.1 confined space; hardline
required confined space rescue operations and the specific
This guide is under the jurisdiction of ASTM Committee F32 on Search and
Rescue and is the direct responsibility of Subcommittee F32.01 on Equipment,
Testing, and Maintenance.
Current edition approved February 10, 1997, Published April 1997.
Annual Book of ASTM Standards, Vol 13.02.
3 5
Available from Department of Labor, Occupational Safety and Health Admin- See Annex A1.
istration, Office of Information and Consumer Affairs, Room N3647, 200 Consti- See X1.1.
tution Ave., NW, Washington, DC 20210. See X1.2.
4 8
Available from the National Fire ProtectionAssociation (NFPA), Batterymarch SeeX1.3.
Park, P.O. Box 9101, Quincy, MA 02269-9101. See X1.4.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 1764 – 97 (2002)
ANNEX
(Mandatory Information)
A1. INHERENT SAFETY
A1.1 Equipment that requires electrical power to operate sion 1 locations are more hazardous than Division 2, therefore
may be a source of ignition in the presence of flammable gases the test protocols for Division 1 are more stringent. As such,
or vapors, combustible dusts, or ignitable fibers. Equipment equipmentcertifiedforDivision1isalsoapprovedforDivision
that must operate in potentially flammable atmospheres must 2.Hardlinesystemsthatonlyhavelimitedapproval,whenused
be unable to cause ignition (inherently safe) in those atmo- only in atmospheres for which they are approved, meet this
spheres.Theycanbecertifiedasintrinsicallysafeorexplosion- guide. The NFPA does not certify equipment. Testing and
proof. Rescue teams that only work in known hazards, such as certification must be done by a Nationally Recognized Test
on-site rescue teams, may use equipment approved for only Laboratory (NRTL) that has been accredited by OSHA in
those hazards. Rescue teams that respond to unknown hazards, accordance with 29 CFR 1910.7. All certified equipment must
such as fire departments and other off-site rescue teams, must be clearly and permanently marked to show the class, division,
have equipment with
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.