ASTM F2153-07(2012)
(Test Method)Standard Test Method for Measurement of Backpack Capacity
Standard Test Method for Measurement of Backpack Capacity
SIGNIFICANCE AND USE
Many consumers use the capacity measurement as a key specification to determine the backpack size suitable for their requirements.
SCOPE
1.1 This test method determines and standardizes an unextended and extended capacity for backpacks and related bags. Related bags include lumbar packs, soft rucksacks, internal and external frame packs, duffel bags, and travel packs.
1.2 This test method is designed to provide a means whereby manufacturers and consumers may have a consistent means to compare pack volumes.
1.3 This test method does not take into consideration areas of the backpack that are not completely enclosed by fabric such as mesh pockets, water bottle holders, and compressor pockets.
1.4 For practical purposes this test method cannot be used to measure capacities less than 4 L.
1.5 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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Standards Content (Sample)
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Designation: F2153 − 07 (Reapproved 2012) An American National Standard
Standard Test Method for
Measurement of Backpack Capacity
This standard is issued under the fixed designation F2153; 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 2.1.4.2 full for top loader: 12 in. maximum opening of
extension collar draw cord, with pack body draw cord com-
1.1 This test method determines and standardizes an unex-
pletely open. When placed on a person the pack looks usable
tended and extended capacity for backpacks and related bags.
andthetoppocketappearslevelorinalignmentwithrestofthe
Relatedbagsincludelumbarpacks,softrucksacks,internaland
pack style (that is, not tipped forward or back excessively).
external frame packs, duffel bags, and travel packs.
2.1.4.3 roll top: In accordance with the manufacturer’s
1.2 This test method is designed to provide a means
design with all extension panels open.
whereby manufacturers and consumers may have a consistent
2.1.5 extension skirt, n—fabric extension which is attached
means to compare pack volumes.
to the top of the pack body and extends over and above the
1.3 This test method does not take into consideration areas
actual pack body.
ofthebackpackthatarenotcompletelyenclosedbyfabricsuch
2.1.6 external frame pack, n—backpack that uses a rigid or
as mesh pockets, water bottle holders, and compressor pockets.
semirigid frame on the outside of the pack bag.
1.4 Forpracticalpurposesthistestmethodcannotbeusedto
2.1.7 frame sheet, n—sheetgenerallyconstructedoffoamor
measure capacities less than 4 L.
polyethylene, which forms the support in the back of the
1.5 This standard does not purport to address all of the
backpack.
safety concerns, if any, associated with its use. It is the
2.1.8 internal frame pack, n—backpack that uses one or
responsibility of the user of this standard to establish appro-
more supports, or stays, made from a rigid or semirigid
priate safety and health practices and determine the applica-
material, and incorporated into the inside of the backpack
bility of regulatory limitations prior to use.
(usually made of aluminum, graphite, or carbon-fiber).
2.1.9 lumbar pack, n—backpack that is designed to fit in the
2. Terminology
small of the back. Many lumbar packs do not have shoulder
2.1 Definitions:
straps.
2.1.1 backpack, n—any carrying device constructed of fab-
2.1.10 soft rucksack, n—backpack that does not have a rigid
ric that utilizes a single or double shoulder strap as the means
frameandisgenerallyofsmallersize.Thisbackpackmayhave
for the wearer to carry the bag on the users back.
a back constructed of foam, or a light frame sheet.
2.1.2 backpack back, n—part of the backpack that is against
2.1.11 unextended backpack capacity, n—maximum achiev-
the user’s back.
able volume of a backpack including all compartments maxi-
2.1.3 backpack front, n—part of the backpack that is away
mized to their largest usable volume. All extensions closed.
from the user’s back.
2.1.11.1 full for panel loaded: Zipped shut. When placed on
a person the pack looks usable and the top pocket appears level
2.1.4 extended capacity, n—maximum achievable volume
of a backpack including all compartments and extensions or in alignment with rest of the pack style (that is, not tipped
forward or back excessively).
maximized to their largest usable volume.
2.1.4.1 full for panel loaded: Zipped shut and all expansion 2.1.11.2 full for top loader: 12 in. maximum opening of
pack body draw cord. When placed on a person the pack looks
panels open. When placed on a person the pack looks usable
andthetoppocketappearslevelorinalignmentwithrestofthe usable and the top pocket appears level or in alignment with
rest of the pack style (that is, not tipped forward or back
pack style (that is, not tipped forward or back excessively).
excessively).
2.1.11.3 roll top: In accordance with the manufacturer’s
This test method is under the jurisdiction of ASTM Committee F08 on Sports
design.
Equipment, Playing Surfaces, and Facilitiesand is the direct responsibility of
Subcommittee F08.22 on Camping Softgoods.
3. Summary of Test Method
Current edition approved May 1, 2012. Published August 2012. Originally
3.1 Determining Backpack Capacity—All compartments
approved in 2001. Last previous edition approved in 2007 as F2153 – 07. DOI:
10.1520/F2153-07R12. (including main pack body, top pocket, exterior pockets) are
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2153 − 07 (2012)
filled with 20-mm plastic balls to their extended capacity. Balls
are removed to bring the pack down to its unextended capacity.
The removed balls are temporarily stored. The rest of the pack
is empt
...
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