ASTM F2175-2007 Standard Specification for Portable and Permanent Emergency Escape Ladders for Residential Use《住宅用便携式和固定式紧急逃生梯子的标准规范》.pdf
《ASTM F2175-2007 Standard Specification for Portable and Permanent Emergency Escape Ladders for Residential Use《住宅用便携式和固定式紧急逃生梯子的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM F2175-2007 Standard Specification for Portable and Permanent Emergency Escape Ladders for Residential Use《住宅用便携式和固定式紧急逃生梯子的标准规范》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: F 2175 07Standard Specification forPortable and Permanent Emergency Escape Ladders forResidential Use1This standard is issued under the fixed designation F 2175; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、 of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification establishes recognized performancerequirements for portable and permanent emergency escapeladd
3、ers for residential use.1.2 This specification replaces provisional standard PS 117.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to consult andestablish appropriate safety and health pra
4、ctices and deter-mine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 648 Test Method for Deflection Temperature of PlasticsUnder Flexural Load in the Edgewise Position2.2 Underwriters Laboratories Standard:3UL 746b Oven Aging Techniques3. Requir
5、ements3.1 The ladder shall show evidence of good workmanshipand meet the following requirements:3.1.1 Vertical Static LoadThe ladder components shallnot allow evidence of failure (material or joint separation,cracking, or collapse) when tested in accordance with 4.1.3.1.2 Horizontal Static LoadThe l
6、adder components shallnot show evidence of failure (material or joint separation,cracking, or collapse) when tested in accordance with 4.2.3.1.3 Rung/Step StrengthThe rungs/steps shall not showany evidence of failure (material or joint separation, cracking,or collapse) when tested in accordance with
7、 4.3.3.1.4 Rung/Step/Side Support ShearThe rungs/steps andside support shall not show evidence of failure (material orjoint separation, cracking, or collapse) when tested in accor-dance with 4.4.3.1.5 Deployment WeightMaximum weight of the laddershall be less than or equal to 20 lb (9.0 kg) for a 20
8、-ft (5.1-m)ladder and not more than 0.75 ft (.34 kg) per foot (30 cm) ofadditional length.3.1.6 Deployment TimeDeployment of the ladder shall beless than 60 s as tested in accordance with 4.5.3.1.7 Hook or Attachment StabilityThe unit shall havehooks or other means of attachment to the window or per
9、ma-nent structural attachment that are stable. With the ladder inplace, no hazardous condition shall be created when tested inaccordance with 5.1.3.1.8 Rung/Step SizeRungs/steps shall be 0.97 in.(25 mm) minimum in depth and greater than 10 in. (254 mm)in width. For rungs made from round tubing, the
10、minimumrung depth can be reduced at each end for attachment to sidesupports.3.1.9 Rung/Step Release MechanismFor ladders havingrung/step release mechanisms, the pull force to release anddeploy the ladder shall be 5 lb (2.3 kg) or less.3.1.10 Heat Deflection TemperatureAll materials thatsoften or mel
11、t by heat used in support components of the ladderincluding the rungs, rung supports, and hooks, shall have a heatdeflection temperature, as measured by Test Method D 648,ofnot less than 150C at 66 psi (455 kPa).3.1.11 StandoffStandoffs for each rung/step shall be sup-plied with each ladder. Minimum
12、 distance between the outerface of the rung/step and standoff contact at building shall benot less than 3.6 in. (9.1 cm). If standoffs are shippedunattached, the label shown in Section 5 shall be used onopposite sides of the final package.3.1.12 Designed LengthDesigned for a maximum use of 3stories
13、(unless specified otherwise).3.1.13 Rung/Step SpacingRungs/steps shall be spaced at auniform distance and spaced at intervals of 13 6 2 in.(325 6 5 cm).3.1.14 Rungs/StepsRungs/steps are to be corrugated, ser-rated, knurled, dimpled, embossed, or coated with slip-resistantmaterial.3.1.15 Rated LoadTh
14、e rated load shall be indicated foreach ladder and shall be rated at 250 lb or more.3.1.16 Stress ReliefRungs/steps, rung/step supports,hooks or permanent structural attachment assembly shall standconditioning at 70C for 7 h without significant deformation or1This specification is under the jurisdic
15、tion of ASTM Committee F15 onConsumer Products F15.47 on Fire Ladders.Current edition approved Feb. 15, 2007. Published March 2007. Last previousedition approved in 2002 as F 2175 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.
16、org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Global Engineering Documents, 15 Inverness Way East,Englewood, CO 80112.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1
17、9428-2959, United States.any cracking that would, in any way, adversely affect thefunctionality of the ladder.3.1.17 Heat AgingPolymeric components shall have acalculated use temperature of 75C or more when heat agedaccording to UL 746b or shall be heat aged at 100C for 1000 hwithout a 25 % or more
18、decrease (unaged to aged) in tensileproperties.4. Test Methods4.1 Vertical Static Load TestThe ladder shall be mountedas intended and subjected to a vertical static load of three timesthe rated load to evaluate the hook or anchoring, rung/step, andrung/step support components. The loads shall be eve
19、nlydistributed along length of the ladder, with a maximum of250 lb (113 kg) per rung, for 1 min. Following the test, theladder shall be examined for evidence of failure.4.2 Horizontal Static Load TestThe ladder shall bemounted as intended and subjected to a horizontal static load of200 lb (91 kg) to
20、 evaluate the hook (for portable ladders) orpermanent structural attachment (for permanent ladders) andstandoff components. The load(s) shall be applied at the pointwhere it would cause the greatest stress on the component for1 min. Following this test, the components shall be visuallyexamined for e
21、vidence of failure.4.3 Rung/Step Strength TestRungs/steps shall be mountedas intended to the side supports and subjected to a static loadof 750 lb (340 kg) applied at the center of the rung/step of a4-in. (10-cm) width for 1 min. Following the test, the rung/stepand side support shall be visually ex
22、amined for evidence offailure.4.4 Rung/Step Support Shear TestRungs/steps shall bemounted as intended to the side supports and subjected to astatic load of 750 lb (340 kg) applied to the rung/step of a 4-in.(10-cm) width immediately adjacent to the side support for 1min. Following the test, the rung
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