ASTM F595-96
(Test Method)Standard Test Methods for Vacuum Cleaner Hose—Durability and Reliability (All-Plastic Hose)
Standard Test Methods for Vacuum Cleaner Hose—Durability and Reliability (All-Plastic Hose)
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 all-plastic, nonelectric vacuum cleaner hoses for household use.
Note 1—For information on plastic wire-reinforced, nonelectric vacuum cleaner hoses for household use, refer to Test Method F 450.
1.3 These test methods are individual tests as agreed upon between the hose manufacturer and the vacuum cleaner manufacturer.
1.4 The following tests are included: SectionTorsional flex6Hot and cold flex with aging (optional)7Abrasion (external surface) (optional)8Flex9Pull test on hose fittings with aging10Crush11
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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Designation: F 595 – 96
Standard Test Methods for
Vacuum Cleaner Hose—Durability and Reliability
1
(All-Plastic Hose)
This standard is issued under the fixed designation F 595; 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 4. Sampling
1.1 These test methods cover the determination of the effect 4.1 The sample size shall be one that is mutually agreed
of anticipated stresses and strains that vacuum cleaner hoses upon between the hose manufacturer and the vacuum cleaner
will receive in normal use. manufacturer.
1.2 These test methods apply to all-plastic, non-electric
TEST METHODS
vacuum cleaner hoses for household use. Other constructions
and applications will be included at a later date.
5. Torsional Flex
NOTE 1—For information on plastic wire-reinforced, nonelectric,
5.1 Scope—This test method covers the determination of
vacuum cleaner hoses for household use, refer to Method F 450, Test for
resistance to failure while twisting under stress in a bend.
2
Vacuum Cleaner Hose for Durability and Reliability.
5.2 Apparatus—The apparatus shown in Fig. 1 is suitable
1.3 These test methods are individual tests as agreed upon
for this test method with the following provisions:
between the hose manufacturer and the vacuum cleaner manu-
5.2.1 Means to rotate test mandrels in an inverted vertical
facturer.
position at 30 6 2 rpm, one clockwise and the other counter-
1.4 The following tests are included:
clockwise operating at identical rates.
Section
5.2.2 Suitable clamp to attach both ends of sample hose to
Torsional flex 5
mandrels without causing failure at the clamp during the test.
Hot and cold flex with aging (optional) 6
5.2.3 Test mandrel with diameter same as inside diameter of
Abrasion (external surface) (optional) 7
Flex 8
hose with a 0.078-in. (2.0-mm) radius at the ends of the
Pull test on hose fittings with aging 9
mandrel (see Fig. 1).
Crush 10
5.2.4 Instrument to measure cycles to failure or to a speci-
1.5 This standard does not purport to address all of the
fied end point.
safety concerns, if any, associated with its use. It is the
5.3 Test Specimen—The specimen shall be a length of hose
responsibility of the user of this standard to establish appro-
30 6 1 in. (762 6 25 mm) long without fittings.
priate safety and health practices and determine the applica-
5.4 Conditioning—Condition the specimen at 68 to 81°F
bility of regulatory limitations prior to use.
(20 to 27°C) ambient temperature for not less than 1 h prior to
the test.
2. Referenced Documents
5.5 Procedure:
2.1 ASTM Standards:
5.5.1 Conduct the tests at 68 to 81°F (20 to 27°C).
3
D 638 Test Method for Tensile Properties of Plastics
5.5.2 Clamp both ends of the test specimen to the test
D 695 Test Method for Compressive Properties of Rigid
mandrels as shown in Fig. 1.
3
Plastics
5.5.3 Set the measuring instrument at zero or record initial
reading.
3. Significance and Use
5.5.4 Test the specimen by rotating at 30 6 2 rpm until
3.1 These test methods can be used by buyers of vacuum
failure or to a specified end point.
cleaner hose to specify the test criteria the hose must meet to
5.5.5 Failure may be evidenced by a broken reinforcing
be acceptable for his purposes.
wire, tear, or hole that penetrates the hose jacket, or a collapsed
coil or ply for a lined-type hose, or any combination thereof.
5.6 Report—The report shall include the following:
1
These methods are under the jurisdiction of ASTM Committee F-11 on Vacuum
5.6.1 Number of cycles to failure or to a specified end point,
Cleaners, and are the direct responsibility of Subcommittee F11.30.02 on Durability/
Reliability Essential Components.
whichever occurs first,
Current edition approved March 10, 1996. Published May 1996. Originally
5.6.2 Type of failure,
published as F 595 – 76. Last previous edition F 595 – 85 (1990).
2 5.6.3 Ambient temperature,
Annual Book of ASTM Standards, Vol 15.07.
3
5.6.4 Description of specimen, and
Annual Book of ASTM Standards, Vol 08.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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F 595
FIG. 3 Hose Flex Cycle
coil or ply for a lined-type hose, or any combination thereof.
FIG. 1 Schematic for Torsional Flex Test
6.5.7 Retie the hose in its original position.
6.5.8 Allow 1 h for conditioning as specified in 6.4 before
5.6.5 Number of specimens tested.
starting the next cycle.
6.5.9 Consider the steps covered in 6.5.1-6.5.7 as one cycle.
6. Hot and Cold Flex with Aging (Optional)
Conduct four complete, successive cycles; then permit the
6.
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