ASME B30.9:2010 pdf download

ASME B30.9:2010 pdf download.Slings
Volume B30.9 includes provisions that apply to the fabrication, attachment, use, inspection, and mainte- nance of slings used for lifting purposes, used in con- junction with equipment described in other volumes of the B30 Standard, except as restricted in B30.12 and B30.23. Slings fabricated from alloy steel chain, wire rope, metal mesh, synthetic fiber rope, synthetic web- bing, and synthetic fiber yarns in a protective cover(s) are addressed. Slings fabricated from other materials or constructions other than those detailed in this Volume shall be used only in accordance with the recommenda- tions of the sling manufacturer or a qualified person.
abnormal operating conditions: environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of a sling, such as excessively high or low ambient temperatures; exposure to weather; corrosive fumes; dust-laden or moisture-laden atmospheres; and hazardous locations. abrasion: the mechanical wearing of a surface resulting from frictional contact with other materials or objects. angle ofchoke: angle formed in a sling body as it passes through the choking eye or fittings. angle ofloading: the acute angle between horizontal and the leg of the rigging, often referred to as horizontal angle. assembly: a synonym for sling. See sling. authorized: approved by a duly constituted administra- tive or regulatory authority. body (sling): that part of a sling between the eyes, end fittings, or loop eyes. braided wire rope: a rope formed by plaiting component wire ropes. braided wire rope sling: a sling made from braided rope. bridle sling: a sling composed of multiple legs with the top ends gathered in a fitting that goes over the lift- ing hook.cable-laid rope: a cable composed of six wire ropes laid as strands around a wire rope core. cable-laid rope sling, mechanical joint: a wire rope sling made from a cable-laid wire rope with eyes fabricated by swaging one of more metal sleeves over the rope junction. component: see fitting. cross rod: a wire used to join spirals of metal mesh to form the complete fabric. D/d ratio: the ratio between the curvature taken by the sling, D, and the diameter of the component rope, d. design factor: ratio between nominal or minimum break- ing strength and rated load of the sling. designated person: selected or assigned by the employer or employer’s representative as being competent to per- form specific duties. end fitting: terminal hardware on the end of a sling. See sling. endless and grommet wire rope slings cable-laid endless sling, mechanical joint: a wire rope sling made endless from one continuous length of cable laid rope with the ends joined by one or more metallic fittings. cable-laid grommet, hand-tucked: an endless wire rope sling made from one continuous length of rope formed to make a body composed of six ropes around a rope core. The rope ends are tucked into the body, thus form- ing the core. No sleeves are used. strand-laid endless sling, mechanical joint: a wire rope sling from one continuous length of wire rope with the ends joined by one or more metallic fittings. strand-laid grommet, hand-tucked: an endless wire rope sling made from one continuous length ofstrand formed to make a six-strand rope with a strand core. The strand ends are hand tucked into the body. No sleeves are used. eye opening: the opening in the end of a sling for the attachment of the hook, shackle, or other lifting device or the load itself.fabric (metal mesh): the flexible portion of the sling exclu- sive of end fittings consisting of a series of transverse spirals and cross rods. fabric length (metal mesh): the distance of metal mesh between the end fittings. fabric thickness (metal mesh): the nominal overall thickness of the spirals. fabrication efficiency: the sling assembly strength, as a percentage of the material strength prior to fabrication. fitting: hardware on the end of a sling. grommet sling: a variety of an endless sling. hitch, basket: a method of rigging a sling in which the sling is passed around the load and both loop eyes or end fittings are attached to the lifting device.