ASTM F2821-15
(Test Method)Standard Test Methods for Basket Type Rescue Litters
Standard Test Methods for Basket Type Rescue Litters
SIGNIFICANCE AND USE
4.1 These test methods are intended to provide reproducible data from which acceptance criteria, design data, and specifications can be developed for basket type rescue litters.
SCOPE
1.1 These test methods enable the user to determine if a rescue litter meets the requirement for strength depending upon particular applications and methods of use.
1.2 The test methods described in this standard are designed to test several parameters under “manner of use” conditions.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.4 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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F2821 − 15
Standard Test Methods for
1
Basket Type Rescue Litters
This standard is issued under the fixed designation F2821; 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. Summary of Test Method
1.1 These test methods enable the user to determine if a 3.1 Horizontal test method is designed to test the litter
rescue litter meets the requirement for strength depending upon attachment points and the resistance of the litter to folding or
particular applications and methods of use. curling.
1.2 The test methods described in this standard are designed 3.2 Vertical test method is designed to test the structural
to test several parameters under “manner of use” conditions. strength of the head end of the litter or the manufacturer’s
designated bridle attachment points or both, and for a two-
1.3 The values stated in SI units are to be regarded as
piece litter, to also test the connection between the two sections
standard. The values given in parentheses are mathematical
of the litter.
conversions to inch-pound units that are provided for informa-
tion only and are not considered standard. 3.3 These tests are destructive in nature and will require a
new litter for each test.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 These test methods are intended to provide reproducible
priate safety and health practices and determine the applica-
data from which acceptance criteria, design data, and specifi-
bility of regulatory limitations prior to use.
cations can be developed for basket type rescue litters.
2. Terminology
5. Apparatus
2.1 Definitions of Terms Specific to This Standard:
5.1 General—Use calibrated electronic load measuring de-
2.1.1 basket type litter, n—a conveyance for the sick or
vices. The testing equipment shall have sufficient capacity to
injured usually consisting of a tubular metal frame enclosing a
prevent yielding of its components under the anticipated
molded plastic or wire shell.Also known as a basket stretcher.
ultimate load, and shall have sufficient stiffness to ensure that
the applied tension loads remain parallel to the axis of the
2.1.2 litter bridle, n—a manufactured or improvised system
anchors.
that attaches the litter to the raising or lowering system.
2.1.3 horizontal lift, n—refers to the patient being in a 5.2 Anchor Plate—Shall be installed in the litter in such a
horizontal position with the head and feet at approximately the
way that the force distributes equally and does not concentrate
same level. In this configuration the litter bridle attaches to the on a single element. The purpose is to test the attachment
litter at four points.
points of the litter bridle, the connection points that hold the
halves of two-piece litter together, and the litter’s ability to
2.1.4 anchor plate, n—a device installed inside the litter that
resist folding or bending both longitudinally and laterally. The
is used to attach the litter to the bed of the test apparatus. It
anchor plate size must be kept to a minimum so that it does not
must be of sufficient size and stiffness to distribute the forces
provide any increased resistance to the litter bending during a
on the litter shell or frame, thereby allowing the test of the
test. In cases where the litter does not have a frame, the plate
attachment points
shall span any ribs or other structural elements within the shell
2.1.5 vertical lift, n—refers to the patient being in a head up
in order that the forces are distributed over a wide enough area
and feet down position. In this configuration the litter bridle
that unintentional damage does not occur.
attaches to the litter at the head end only.
5.3 Sample Orientation—The litter subject to test can be
loaded either horizontally or vertically depending upon the test
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These test methods are under the jurisdiction of ASTM Committee F32 on
apparatus being used.
Search and Rescue and are the direct responsibility of Subcommittee F32.01 on
Equipment, Testing, and Maintenance. 6. Hazards
Current edition approved Dec. 1, 2015. Published February 2016. Originally
6.1 This standard does not purport to address all of the
approved in 2010. Last previous edition approved in 2010 as F2821 – 10. DOI:
10.1520/F2821-15. safety concerns, if any, associated with its use. It is the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2821 − 10 F2821 − 15
Standard Test Methods for
1
Basket Type Rescue Litters
This standard is issued under the fixed designation F2821; 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
1.1 These test methods will enable the user to determine if a rescue litter meets theirthe requirement for strength depending upon
their particular applications and methods of use.
1.2 The test methods described in this standard are designed to test several parameters under “manner of use” conditions.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to inch-pound units that are provided for information only and are not considered standard.
1.4 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.
2. Terminology
2.1 Definitions of Terms Specific to This Standard:
2.1.1 basket type litter, n—a conveyance for the sick or injured usually consisting of a tubular metal frame enclosing a molded
plastic or wire shell. Also known as a basket stretcher.
2.1.2 litter bridle, n—a manufactured or improvised system that attaches the litter to the raising or lowering system.
2.1.3 horizontal lift, n—refers to the patient being in a horizontal position with the head and feet at approximately the same
level. In this configuration the litter bridle attaches to the litter at four points.
2.1.4 anchor plate, n—a device installed inside the litter that is used to attach the litter to the bed of the test apparatus. It must
be of sufficient size and stiffness to distribute the forces on the litter shell or frame, thereby allowing the test of the attachment
points.points
2.1.5 vertical lift, n—refers to the patient being in a head up and feet down position. In this configuration the litter bridle attaches
to the litter at the head end only.
3. Summary of Test Method
3.1 Horizontal test method is designed to test the litter attachment points and the resistance of the litter to folding or curling.
3.2 Vertical test method is designed to test the structural strength of the head end of the litter or the manufacturer’s designated
bridle attachment points or both, and for a two-piece litter, to also test the connection between the two sections of the litter.
3.3 These tests are destructive in nature and will require a new litter for each test.
4. Significance and Use
4.1 These test methods are intended to provide reproducible data from which acceptance criteria, design data, and specifications
can be developed for basket type rescue litters.
5. Apparatus
5.1 General—Use calibrated electronic load measuring devices. The testing equipment shall have sufficient capacity to prevent
yielding of its components under the anticipated ultimate load, and shall have sufficient stiffness to ensure that the applied tension
loads remain parallel to the axis of the anchors.
1
These test methods are under the jurisdiction of ASTM Committee F32 on Search and Rescue and are the direct responsibility of Subcommittee F32.01 on Equipment,
Testing, and Maintenance.
Current edition approved May 1, 2010Dec. 1, 2015. Published June 2010February 2016. Originally approved in 2010. Last previous edition approved in 2010 as
F2821 – 10. DOI: 10.1520/F2821-10.10.1520/F2821-15.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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F2821 − 15
5.2 Anchor Plate—(if used) Shall be installed in the litter in such a way that the force distributes equally and does not
concentrate on a single element. The purpose is to test the attachment points of the litter bridle, the connection points that hold
the halves of two-piece litter together, and the litter’s ability to resist folding or bending both longitudinally and laterally. The
anchor plate size must be kept to a minimum so that it does not provide any increased resistance to the litter bending during a test.
In cases where the litter does not have a frame, the plate shall span any ribs or other structural elements within the
...
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