ASTM F1853-03
(Test Method)Standard Test Method for Measuring Sleeping Bag Packing Volume
Standard Test Method for Measuring Sleeping Bag Packing Volume
SIGNIFICANCE AND USE
This test method can be used to quantify and compare packing volumes of sleeping bags. It defines the volume occupied by a sleeping bag under a standardized load (see 4.2).
SCOPE
1.1 This test method covers the quantitative volume of a sleeping bag in a cylinder under a standardized load.
1.2 This test method uses a physical volumetric measurement applicable in the laboratory or in the field.
1.3 The volumes stated in SI units are to be regarded as standard. The inch-pound units given in parentheses are provided for information only.
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.
General Information
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Standards Content (Sample)
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An American National Standard
Designation:F1853–03
Standard Test Method for
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Measuring Sleeping Bag Packing Volume
This standard is issued under the fixed designation F1853; 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 4.2 Loading System—A circular plate or piston structure
that closely matches the diameter of the measuring cylinder,
1.1 This test method covers the quantitative volume of a
withweights,thatprovidesa6.90 60.07kPa(1.00 60.01psi)
sleeping bag in a cylinder under a standardized load.
load. The diameter of the plate or piston structure should be
1.2 This test method uses a physical volumetric measure-
slightly undersized, compared to the measuring cylinder, to
ment applicable in the laboratory or in the field.
allow air to escape as the bag under test is subject to the
1.3 The values stated in SI units are to be regarded as
loading force. Small ventilation holes are also acceptable to
standard. The inch-pound units given in parentheses are
allow air to escape. See Annex A1 for specifications on a
provided for information only.
typical design.
1.4 This standard does not purport to address all of the
4.3 Measuring Scale—A scale accurate to 1 mm (1/16 in.)
safety concerns, if any, associated with its use. It is the
and having a capacity to measure the height of the loading
responsibility of the user of this standard to establish appro-
system in the measuring cylinder. For convenience, multiple
priate safety and health practices and determine the applica-
scales can be placed around (and can be affixed to) the
bility of regulatory limitations prior to use.
measuring cylinder so opposing height readings can be taken
2. Terminology
directly. Additionally, scale markings can be customized to
read packing volume directly since the cross-sectional area of
2.1 Definitions:
the cylinder is constant.
2.1.1 sleeping bag, n—a structure made of down, synthetic
fiberfill, shell fabrics, or other materials, or both, that is
5. Procedure
designed for people to use for thermal protection when
5.1 Perform tests at ambient temperatures between 10 and
sleeping (for example, outdoors, tent, cabin).
25°C (55 and 80°F).
3. Significance and Use 5.2 Zip up the sleeping bag and place feet end first into the
measuring cylinder.The bag should be packed down slightly to
3.1 This test method can be used to quantify and compare
make its distribution in the measuring cylinder as uniform as
packing volumes of sleeping bags. It defines the volume
possible. Sleeping bags with low air permeability outer shells
occupied by a sleeping bag under a standardized load (see 4.2).
may be turned inside out to minimize the settling time
4. Apparatus
(entrained air release) when the load is applied.
5.3 Apply the loading system to the sleeping bag in the
4.1 Measuring Cylinder—A circularly round container,
measuring cylinder and allow to settle. The system is deemed
measuring in diameter 45 6 3 cm (18 6 1 in.), suitable to
settled when the change in measured height is less that 1 mm
contain the sleeping bag being measured, and capable of not
in a 1 min interval.
deforming when the loading system is applied. See Annex A1
5.3.1 UsingthetypicaldesignshowninAnnexA1,placethe
for specifications on a typical design.
piston assembly into the measuring cylinder with the first
round disk contacting the surface of the bag. Stack weights on
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top of the second disk of the piston assembly for a total (piston
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
and weights) of 114.1 kg (250.0 lb).
Camping Softgoods.
5.4 Take two height readings to the nearest 1 mm (1/16 in.),
Current edition approved May 10, 2003. Published June 2003. Originally
one opposite the other, of the height of the compressed bag in
approved in 1998. Last previous edition approved in 1998 as F1853–98. DOI:
10.1520/F1853-03. the measuring cylinder.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F1853–03
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5.4.1 Using the typical design shown in the annex, take two
V = packing volume, m or L, where 1000 L = 1 m ,
height readings, one opposite the other, at the top of the second
h = height of the sleeping bag under load in the measuring
disk of the piston assembly. Areas where the bag material
cylinder, m, and
creeps up past the loading system or where an air pocket forms r = radius of the measuring cylinder, m.
should not be used for the m
...
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