ASTM F2153-07
(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.
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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An American National Standard
Designation:F2153–07
Standard Test Method for
1
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 andthetoppocketappearslevelorinalignmentwithrestofthe
pack style (that is, not tipped forward or back excessively).
1.1 This test method determines and standardizes an unex-
2.1.4.3 roll top: In accordance with the manufacturer’s
tended and extended capacity for backpacks and related bags.
design with all extension panels open.
Relatedbagsincludelumbarpacks,softrucksacks,internaland
2.1.5 extension skirt, n—fabric extension which is attached
external frame packs, duffel bags, and travel packs.
to the top of the pack body and extends over and above the
1.2 This test method is designed to provide a means
actual pack body.
whereby manufacturers and consumers may have a consistent
2.1.6 external frame pack, n—backpack that uses a rigid or
means to compare pack volumes.
semirigid frame on the outside of the pack bag.
1.3 This test method does not take into consideration areas
2.1.7 frame sheet, n—sheet generally constructed of foam
ofthebackpackthatarenotcompletelyenclosedbyfabricsuch
or polyethylene, which forms the support in the back of the
as mesh pockets, water bottle holders, and compressor pockets.
backpack.
1.4 Forpracticalpurposesthistestmethodcannotbeusedto
2.1.8 internal frame pack, n—backpack that uses one or
measure capacities less than 4 L.
more supports, or stays, made from a rigid or semirigid
1.5 This standard does not purport to address all of the
material, and incorporated into the inside of the backpack
safety concerns, if any, associated with its use. It is the
(usually made of aluminum, graphite, or carbon-fiber).
responsibility of the user of this standard to establish appro-
2.1.9 lumbar pack, n—backpack that is designed to fit in the
priate safety and health practices and determine the applica-
small of the back. Many lumbar packs do not have shoulder
bility of regulatory limitations prior to use.
straps.
2. Terminology 2.1.10 soft rucksack, n—backpack that does not have a rigid
frameandisgenerallyofsmallersize.Thisbackpackmayhave
2.1 Definitions:
a back constructed of foam, or a light frame sheet.
2.1.1 backpack, n—any carrying device constructed of fab-
2.1.11 unextended backpack capacity, n—maximum
ric that utilizes a single or double shoulder strap as the means
achievable volume of a backpack including all compartments
for the wearer to carry the bag on the users back.
maximized to their largest usable volume. All extensions
2.1.2 backpack back, n—part of the backpack that is against
closed.
the user’s back.
2.1.11.1 full for panel loaded: Zipped shut. When placed on
2.1.3 backpack front, n—part of the backpack that is away
a person the pack looks usable and the top pocket appears level
from the user’s back.
or in alignment with rest of the pack style (that is, not tipped
2.1.4 extended capacity, n—maximum achievable volume
forward or back excessively).
of a backpack including all compartments and extensions
2
2.1.11.2 full for top loader: 12 in. maximum opening of
maximized to their largest usable volume.
pack body draw cord. When placed on a person the pack looks
2.1.4.1 full for panel loaded: Zipped shut and all expansion
usable and the top pocket appears level or in alignment with
panels open. When placed on a person the pack looks usable
rest of the pack style (that is, not tipped forward or back
andthetoppocketappearslevelorinalignmentwithrestofthe
excessively).
pack style (that is, not tipped forward or back excessively).
2
2.1.11.3 roll top: In accordance with the manufacturer’s
2.1.4.2 full for top loader: 12 in. maximum opening of
design.
extension collar draw cord, with pack body draw cord com-
pletely open. When placed on a person the pack looks usable
3. Summary of Test Method
3.1 Determining Backpack Capacity—All compartments
1
This test method is under the jurisdiction of ASTM Committee F08 on Sports
(including main pack body, top pocket, exterior pockets) are
Equipment and Facilities and is the direct responsibility of Subcommittee F08.22 on
filled with 20-mm plastic balls to their extended capacity. Balls
Camping Softgoods.
are removed to bring the pack down to its unextended capacity.
Current edition approved Oct. 1, 2007. Published November 2007. Originally
approved in 2001. Last previous edition approved in 2001 as F2153 – 01. DOI:
10.1520/F2153-07.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, P
...
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.
An American National Standard
Designation:F2153–01 Designation: F 2153 – 07
Standard Test Method for
1
Measurement of Backpack Capacity
This standard is issued under the fixed designation F 2153; 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
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.
2. Terminology
2.1 Definitions:
2.1.1 backpackbackpack, n—any carrying device constructed of fabric that utilizes a single or double shoulder strap as the
means for the wearer to carry the bag on the users back.
2.1.2 backpack back—the part, n—part of the backpack that is against the user’s back.
2.1.3 backpack front—the part, n—part of the backpack that is away from the user’s back.
2.1.4 extended capacity, n—the maximum —maximum achievable volume of a backpack including all compartments and
extensions maximized to their largest usable volume.
2.1.4.1 full for panel loaded: Zipped shut and all expansion panels open.
Zipped shut and all expansion panels open. When placed on a person the pack looks usable and the top pocket appears level
or in alignment with rest of the pack style (that is, not tipped forward or back excessively).
2.1.4.2 full for top loader: 4-in. diameter opening of extension collar drawcord, with pack body draw cord completely open.
Top pocket must cover the extension collar opening.
2
12 in. maximum opening of extension collar draw cord, with pack body draw cord completely open. When placed on a person
the pack looks usable and the top pocket appears level or in alignment with rest of the pack style (that is, not tipped forward or
back excessively).
2.1.4.3 roll top: In accordance with the manufacturer’s design with all extension panels open.
2.1.5 extension skirt—a fabric, n—fabric extension which is attached to the top of the pack body and extends over and above
the actual pack body.
2.1.6 external frame pack, n—abackpack that uses a rigid or semirigid frame on the outside of the pack bag.
2.1.7 frame sheet—a sheet, n—sheet generally constructed of foam or polyethylene, which forms the support in the back of the
backpack.
2.1.8 internal frame pack, n—abackpack that uses one or more supports, or stays, made from a rigid or semirigid material, and
incorporated into the inside of the backpack (usually made of aluminum, graphite, or carbon-fiber).
2.1.9 lumbar pack, n—abackpackthatisdesignedtofitinthesmalloftheback.Manylumbarpacksdonothaveshoulderstraps.
2.1.10 soft rucksack, n—abackpack that does not have a rigid frame and is generally of smaller size. This backpack may have
a back constructed of foam, or a light frame sheet.
2.1.11 unextended backpack capacity, n—the maximum —maximum achievable volume of a backpack including all
compartments maximized to their largest usable volume. All extensions closed.
1
This test method is under the jurisdiction of ASTM Committee F08 on Sports Equipment and Facilities and is the direct responsibility of Subcommittee F08.22 on
Camping Softgoods.
Current edition approved Nov. 10, 2001. Published January 2002.
Current edition approved Oct. 1, 2007. Published November 2007. Originally approved in 2001. Last previous edition approved in 2001 as F 2153 – 01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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F2153–07
2.1.11.1 full for panel loaded: Zipped shut.
Zipped shut. When
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