ASTM F2153-01

Standard Test Method for Measurement of Backpack Capacity

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.

General Information

• Status: Historical
• Publication Date: 09-Nov-2001
• ICS: 59.080.40 - Coated fabrics
• ICS: 59.140.35 - Leather products
• Technical Committee: F08 - Sports Equipment, Playing Surfaces, and Facilities
• Drafting Committee: F08.22 - Camping Softgoods

Relations

• Replaced By: ASTM F2153-07 - Standard Test Method for Measurement of Backpack Capacity
• Effective Date: 01-Oct-2007

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation:F2153–01
Standard Test Method for
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 2.1.7 frame sheet—a sheet generally constructed of foam or
polyethylene, which forms the support in the back of the
1.1 This test method determines and standardizes an unex-
backpack.
tended and extended capacity for backpacks and related bags.
2.1.8 internal frame pack—a backpack that uses one or
Relatedbagsincludelumbarpacks,softrucksacks,internaland
more supports, or stays, made from a rigid or semirigid
external frame packs, duffel bags, and travel packs.
material, and incorporated into the inside of the backpack
1.2 This test method is designed to provide a means
(usually made of aluminum, graphite, or carbon-fiber).
whereby manufacturers and consumers may have a consistent
2.1.9 lumbar pack—a backpack that is designed to fit in the
means to compare pack volumes.
small of the back. Many lumbar packs do not have shoulder
1.3 This test method does not take into consideration areas
straps.
ofthebackpackthatarenotcompletelyenclosedbyfabricsuch
2.1.10 soft rucksack—a backpack that does not have a rigid
as mesh pockets, water bottle holders, and compressor pockets.
frame and is generally of smaller size.This backpack may have
1.4 Forpracticalpurposesthistestmethodcannotbeusedto
a back constructed of foam, or a light frame sheet.
measure capacities less than 4 L.
2.1.11 unextended backpack capacity—the maximum
2. Terminology
achievable volume of a backpack including all compartments
maximized to their largest usable volume. All extensions
2.1 Definitions:
closed.
2.1.1 backpack—any carrying device constructed of fabric
full for panel loaded: Zipped shut.
that utilizes a single or double shoulder strap as the means for
full for top loader: 4-in. diameter opening of pack body
the wearer to carry the bag on the users back.
drawcord.
2.1.2 backpack back—the part of the backpack that is
roll top: In accordance with the manufacturer’s design.
against the user’s back.
2.1.3 backpack front—the part of the backpack that is away
3. Summary of Test Method
from the user’s back.
3.1 Determining Backpack Capacity—All compartments
2.1.4 extended capacity—the maximum achievable volume
(including main pack body, top pocket, exterior pockets) are
of a backpack including all compartments and extensions
filled with 20-mm plastic balls to their extended capacity. Balls
maximized to their largest usable volume.
are removed to bring the pack down to its unextended capacity.
full for panel loaded: Zipped shut and all expansion panels
The removed balls are temporarily stored. The rest of the pack
open.
is emptied and the capacity measured in the graduated cylinder
full for top loader:4-in.diameteropeningofextensioncollar
as the unextended capacity. The balls removed in the first step
drawcord, with pack body draw cord completely open. Top
are then added to the cylinder to measure the extended
pocket must cover the extension collar opening.
capacity.
roll top: In accordance with the manufacturer’s design with
all extension panels open.
4. Significance and Use
2.1.5 extension skirt—a fabric extension which is attached
4.1 Many consumers use the capacity measurement as a key
to the top of the pack body and extends over and above the
specification to determine the backpack size suitable for their
actual pack body.
requirements.
2.1.6 external frame pack—a backpack that uses a rigid or
semirigid frame on the outside of the pack bag.
5. Apparatus
5.1 Spheres (see Fig. 1)—15 to 20-mm hollow polypropy-
This test method is under the jurisdiction of ASTM Committee F08 on Sports lene, polyethylene, or other functionally incompressible plas-
Equipment and Facilities and is the direct responsibility of Subcommittee F08.22 on
tic, measurement units with net density between 6 and 14
Camping Softgoods.
Current edition approved Nov. 10, 2001. Published January 2002.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
...