【国外标准】 Standard Test Methods for Vacuum Cleaner Hose—Durability and Reliability (All-Plastic Hose)

These test methods can be used by buyers of vacuum cleaner hose to specify the test criteria the hose must meet to be acceptable for their purposes.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 flex 6Hot and cold flex with aging (optional) 7Abrasion (external surface) (optional) 8Flex 9Pull test on hose fittings with aging 10Crush 111.5 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.