ASTM F450-01
(Test Method)Standard Test Methods for Vacuum Cleaner Hose—Durability and Reliability (Plastic Wire Reinforced)
Standard Test Methods for Vacuum Cleaner Hose—Durability and Reliability (Plastic Wire Reinforced)
SCOPE
1.1 These test methods cover the determination of the effect of anticipated stresses and strains that vacuum cleaner hoses will receive in normal use.
1.2 These test methods apply to plastic, wire-reinforced, nonelectric vacuum cleaner hoses for household use.
1.3 The following tests are included:
SectionTorsional flex6Hot and cold flex with aging7Abrasion, external surfaces8 Flex9Pull test on hose fittings with aging10Crush11
1.4 These test methods are individual tests as agreed upon between the hose and vacuum manufacturer.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathmatical conversions to SI units, which are provided for information only and are not considered standard.
1.6 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:F450–01
Standard Test Methods for
Vacuum Cleaner Hose—Durability and Reliability (Plastic
1
Wire Reinforced)
This standard is issued under the fixed designation F450; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 These test methods cover the determination of the effect 3.1 Definitions
of anticipated stresses and strains that vacuum cleaner hoses 3.1.1 Refer to Terminology F395.
will receive in normal use.
4. Significance and Use
1.2 These test methods apply to plastic, wire-reinforced,
nonelectric vacuum cleaner hoses for household use. 4.1 These test methods can be used by buyers of vacuum
cleaner hose to specify the test criteria the hose must meet to
1.3 The following tests are included:
be acceptable for their purposes.
Section
Torsional flex 6
Hot and cold flex with aging 7
5. Sampling
Abrasion, external surfaces 8
5.1 The sample size shall be one that is mutually agreed
Flex 9
Pull test on hose fittings with aging 10
upon between the hose manufacturer and the vacuum cleaner
Crush 11
manufacturer.
1.4 These test methods are individual tests as agreed upon
TEST METHODS
between the hose and vacuum manufacturer.
1.5 The values stated in inch-pound units are to be regarded
6. Torsional Flex Test
as standard. The values given in parentheses are mathmatical
6.1 Scope—This test method covers the determination of
conversions to SI units, which are provided for information
the adhesion of the reinforcing wire coating to the hose jacket,
only and are not considered standard.
the jacket strength, and the strength of the reinforcing wire for
1.6 This standard does not purport to address all of the
plastichosewithinsidediameterfrom1to2in.(25to51mm).
safety concerns, if any, associated with its use. It is the
6.2 Apparatus—The apparatus shown in Fig. 1 is suitable
responsibility of the user of this standard to establish appro-
for this test method with the following provisions:
priate safety and health practices and determine the applica-
6.2.1 Meanstorotatetestmandrelinahorizontalplaneat20
bility of regulatory limitations prior to use.
6 1 rpm, both clockwise and counter-clockwise.
6.2.2 Test weight of 48 6 1 oz. (1360 6 28 g) with
2. Referenced Documents
provision to attach to sample hose.
2.1 ASTM Standards:
2 6.2.3 Suitable clamp to attach sample hose to mandrel that
D638 Test Method for Tensile Properties of Plastics
retainsthehosewithoutcausingfailureattheclampduringthe
D695 Test Method for Compressive Properties of Rigid
2 test.
Plastics
3 6.2.4 Testmandrelwithdiametersameasinsidediameterof
F395 Terminology Relating to Vacuum Cleaners
hose with 0.078 in. (2.0 mm) radius at the ends of the mandrel
(see Fig. 1).
1 6.2.5 Guide for weight to prevent hose sample from swing-
These methods are under the jurisdiction ofASTM Committee F11 onVacuum
ing during test cycle.
Cleaners and are the direct responsibility of Subcommittee F11.30 on Durability-
Reliability.
6.2.6 Instrument to measure cycles to failure or to a speci-
Current edition approved Sept. 10, 2001. Published November 2001. Originally
fied end point.
published as F450–79. Last previous edition F450–96.
2
6.3 Test Specimen—The specimen shall be a length of hose
Annual Book of ASTM Standards, Vol 08.01.
3
Annual Book of ASTM Standards, Vol. 15.08 24 6 1 in. (610 6 25 mm) without fittings.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F450
FIG. 1 Schematic for Torsional Flex Test
6.4 Conditioning—Condition the specimens at an ambient 7.5 Procedure:
temperature of 68 to 81°F (20 to 27°C) for not less than 1 h 7.5.1 Bend a specimen in a “U” shape and tie the ends
prior to test. together at a position 1 in. (25 mm) from the ends as shown in
6.5 Procedure: Fig. 2.
6.5.1 Conduct the tests at 68 to 81°F (20 to 27°C). 7.5.2 Place the specimen into the oven, which has been
6.5.2 Clampthespecimentothetesthosemandrelasshown brought to a steady test temperature of 156 6 2°F (69 6 1°C),
1
in Fig. 1 and attach a weight to other end of hose sample. and soak the sample for 20 ⁄2h.
6.5.3 Set measuring instrument at zero or record the initial 7.5.3 Removethespecimenfromtheovenandallow30min
reading. for samples to come to equilibrium with the ambient tempera-
6.5.4 Test half of the specimens by rotating clockwise and ture in accordance with 7.4.
theotherhalfbyrotatingcounter-clockwiseat20 61rpmuntil 7.5.4 Next, place the specimen in the cold box, which has
failure or to a speci
...
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