ASTM F1853-11
(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 values 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.
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Designation: F1853 − 11 An American National Standard
Standard Test Method for
1
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 slightly undersized, compared to the measuring cylinder, to
allow air to escape as the bag under test is subject to the
1.1 This test method covers the quantitative volume of a
loading force. Small ventilation holes are also acceptable to
sleeping bag in a cylinder under a standardized load.
allow air to escape. See Annex A1 for specifications on a
1.2 This test method uses a physical volumetric measure-
typical design.
ment applicable in the laboratory or in the field.
4.3 Measuring Scale—A scale accurate to 1 mm (1/16 in.)
1.3 The values stated in SI units are to be regarded as
and having a capacity to measure the height of the loading
standard. The inch-pound units given in parentheses are
system in the measuring cylinder. For convenience, multiple
provided for information only.
scales can be placed around (and can be affixed to) the
1.4 This standard does not purport to address all of the measuring cylinder so opposing height readings can be taken
safety concerns, if any, associated with its use. It is the
directly. Additionally, scale markings can be customized to
responsibility of the user of this standard to establish appro- read packing volume directly since the cross-sectional area of
priate safety and health practices and determine the applica-
the cylinder is constant.
bility of regulatory limitations prior to use.
5. Procedure
2. Terminology
5.1 Perform tests at ambient temperatures between 10 and
2.1 Definitions: 25°C (55 and 80°F).
2.1.1 sleeping bag, n—a structure made of down, synthetic
5.2 Zip up the sleeping bag and place feet end first into the
fiberfill, shell fabrics, or other materials, or both, that is
measuring cylinder.The bag should be packed down slightly to
designed for people to use for thermal protection when
make its distribution in the measuring cylinder as uniform as
sleeping (for example, outdoors, tent, cabin).
possible. Sleeping bags with low air permeability outer shells
may be turned inside out to minimize the settling time
3. Significance and Use
(entrained air release) when the load is applied.
3.1 This test method can be used to quantify and compare
5.3 Apply the loading system to the sleeping bag in the
packing volumes of sleeping bags. It defines the volume
measuring cylinder and allow to settle. The system is deemed
occupied by a sleeping bag under a standardized load (see 4.2).
settled when the change in measured height is less that 1 mm
in a 1 min interval.
4. Apparatus
5.3.1 UsingthetypicaldesignshowninAnnexA1,placethe
4.1 Measuring Cylinder—A circularly round container,
piston assembly into the measuring cylinder with the first
measuring in diameter 45 6 3 cm (18 6 1 in.), suitable to
round disk contacting the surface of the bag. Stack weights on
contain the sleeping bag being measured, and capable of not
top of the second disk of the piston assembly for a total (piston
deforming when the loading system is applied. See Annex A1
and weights) of 114.1 kg (250.0 lb).
for specifications on a typical design.
5.4 Take two height readings to the nearest 1 mm (1/16 in.),
4.2 Loading System—Acircularplateorpistonstructurethat
one opposite the other, of the height of the compressed bag in
closely matches the diameter of the measuring cylinder, with
the measuring cylinder.
weights, that provides a 6.90 6 0.07 kPa (1.00 6 0.01 psi)
5.4.1 Using the typical design shown in the annex, take two
load. The diameter of the plate or piston structure should be
height readings, one opposite the other, at the top of the second
disk of the piston assembly. Areas where the bag material
1
creeps up past the loading system or where an air pocket forms
This test method is under the jurisdiction of ASTM Committee F08 on Sports
Equipment, Playing Surfaces, and Facilitiesand is the direct responsibility of
should not be used for the measurement. A flashlight can be
Subcommittee F08.22 on Camping Softgoods.
held inside the semi-transparent measuring cylinder so that the
Current edition approved April 1, 2011. Published May 2011. Originally
location of the top disk can be accurately determined. Subtract
approved in 1998. Last previous edition approved in 2003 as F1853 – 03. DOI:
10.1520/F1853-11. the distance between the top disk and bottom disk (in contact
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United
...
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:F1853–03 Designation:F1853–11
Standard Test Method for
1
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
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 values 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.
2. Terminology
2.1 Definitions:
2.1.1 sleeping bag, n—a structure made of down, synthetic fiberfill, shell fabrics, or other materials, or both, that is designed
for people to use for thermal protection when sleeping (for example, outdoors, tent, cabin).
3. Significance and Use
3.1 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).
4. Apparatus
4.1 Measuring Cylinder—A circularly round container, measuring in diameter 45 63cm(18 6 1 in.), suitable to contain the
sleeping bag being measured, and capable of not deforming when the loading system is applied. SeeAnnexA1 for specifications
on a typical design.
4.2 Loading System—A circular plate or piston structure that closely matches the diameter of the measuring cylinder, with
weights, that provides a 6.90 6 0.07 kPa (1.00 6 0.01 psi) load. The diameter of the plate or piston structure should be slightly
undersized, compared to the measuring cylinder, to allow air to escape as the bag under test is subject to the loading force. Small
ventilation holes are also acceptable to allow air to escape. See Annex A1 for specifications on a typical design.
4.3 Measuring Scale—A scale accurate to 1 mm (1/16 in.) and having a capacity to measure the height of the loading system
in the measuring cylinder. For convenience, multiple scales can be placed around (and can be affixed to) the measuring cylinder
so opposing height readings can be taken directly.Additionally, scale markings can be customized to read packing volume directly
since the cross-sectional area of the cylinder is constant.
5. Procedure
5.1 Perform tests at ambient temperatures between 10 and 25°C (55 and 80°F).
5.2 Zipupthesleepingbagandplacefeetendfirstintothemeasuringcylinder.Thebagshouldbepackeddownslightlytomake
itsdistributioninthemeasuringcylinderasuniformaspossible.Sleepingbagswithlowairpermeabilityoutershellsmaybeturned
inside out to minimize the settling time (entrained air release) when the load is applied.
5.3 Apply the loading system to the sleeping bag in the measuring cylinder and allow to settle. The system is deemed settled
when the change in measured height is less that 1 mm in a 1 min interval.
5.3.1 Using the typical design shown in Annex A1, place the piston assembly into the measuring cylinder with the first round
disk contacting the surface of the bag. Stack weights on top of the second disk of the piston assembly for a total (piston and
weights) of 114.1 kg (250.0 lb).
1
This test method is under the jurisdiction of ASTM Committee F08 on Sports Equipment and Facilities and is the direct responsibility of SubcommitteeF08.22 on
Camping Softgoods.
Current edition approved May 10, 2003. Published June 2003. Originally approved in 1998. Last previous edition approved in 1998 as F1853–98. DOI: 10.1520/F1853-03.
CurrenteditionapprovedApril1,2011.PublishedMay2011.Originallyapprovedin1998.Lastpreviouseditionapprovedin2003asF1853 – 03.DOI:10.1520/F1853-11.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F1853–11
5.4 Take two height readings to the nearest 1 mm (1/16 in.), one opposite the other, of the height of the compressed bag in the
measuring cylinder.
5.4.1 Using the typical design shown
...
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