Home>ASTM Standards>ASTM F1858-98(R2020) pdf free download

ASTM F1858-98(R2020) pdf free download

ASTM F1858-98(R2020) pdf free download.Standard Performance Requirements for Multipositional Plastic Chairs with Adjustable Backs or Reclining Mechanisms for Outdoor Use
1. Scope
1.1 These performance requirements cover nationally rec- ognized performance requirements for multipositional plastic chairs, with adjustable backs or reclining mechanisms, in- tended for outdoor use. 1.2 These performance requirements are not applicable to chaise lounges, upholstered chairs, or other types of furniture. 1.3 These performance requirements cover the performance ofthe product regarding aspects ofoutdoor weathering, impact, static load for seat and back, and arm testing. 1.4 Products Manufactured from Recycled Plastics— Products may be manufactured from recycled plastics as long as the performance requirements are met. 1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.7 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
5. Apparatus
5.1 Multipositional Plastic Chairs with Adjustable Backs or Reclining Mechanisms, which have been inspected and met a manufacturer’s internal quality standards.5.2 One Heavy-Weight Canvas or Leather Bag, 16 6 0.2 in. (406 6 4 mm) in diameter, which shall be measured prior to testing to determine stretching, having a total measurement not to exceed 17.5 in. (445 mm) in diameter when filled with steel or lead shot (0.09 to 0.12 in (2.3 to 3.0 mm) in diameter), to a total weight of 150 6 1.5 lb (68 6 0.7 kg). The bag shall be fitted with a safety cable or other means to prevent it from hitting the glass testing base but should not interfere with the test. 5.3 One Heavy-Weight Canvas or Leather Bag, identical to the bag in 5.2; however, the weight is increased by addition to the bag of 250 6 2.5 lb (114 6 1.1 kg) of either (1) additional steel or lead shot or (2) barbell weights distributed evenly on top of the steel or lead shot, for a total weight of 400 6 4 lb (182 6 1.8 kg). 5.4 Glass Testing Base, as shown in Fig. 5. 5.5 Plywood Testing Base, as shown in Fig. 6. 5.6 Back Weight Apron—One heavy-weight canvas or leather apron, 19 6 0.2 in. (483 6 4.8 mm) in width and 28 6 0.3 in. (711 6 7.1 mm) in length, having six pockets, 6 6 0.6 in. (152 6 1.5 mm) in width and 10 6 0.1 in. (254 6 2.5 mm) in height, and having appropriate straps, clips, or clamps to hold the apron in place (see Fig. 7). 5.7 250-lb (114-kg) Arm Testing Block—One block of suit- able material such as wood or metal, 42 6 0.4 in (1067 6 10.7 mm) in length and 7.0 6 0.7 in. (178 6 1.8 mm) in height and 4.0 6 0.4 in. (102 6 1.0 mm) in width, having additional weights or supporting structure, or both, to obtain a total weight of 250 6 2.5 lb (114 6 1.1 kg). The base of the block shall be 12 6 0.1 in. (305 6 3.1 mm) at the center, with the sides at a 15° angle (see Fig. 8). N OTE 1—The 250-lb (114-kg) weight of the arm block may also be achieved by the use of a combination of a block of the dimensions given above and the use of a of the force of an air cylinder to achieve a total applied weight of 250 lb (114 kg).The specimens are to be exposed according to one of the following procedures: (1) 1000 h in accordance with Procedure B of Practice D2565, using a Type B or BH xenon-arc apparatus; (2) 720 h in accordance with Practice G23, using a Type E carbon-arc weathering device; (3) 1000 h in accordance with CycleAofPractice D4329, using UVB-313 bulbs; or (4) 2000 h in accordance with Cycle A of Practice D4329, using UVA-340 bulbs. For Practice D2565 or Practice G23, the test cycle shall consist of102 min oflight followed by 18 min of light and spray. For Practice D4329, the test cycle shall consist of 8 h of light followed by 4 h of dark with condensation. If Practice G23 is used, the blackbody tempera- ture shall be 145 6 5°F (63 6 3°C).

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