ASME B30.9 pdf download.Slings.
SECTION 9-0.1: SCOPE OF ASME 830.9
Volume B30.9 includes provisions that apply to the
fabrication, attachment, use, inspection, and maintenance of slings used for lifting purposes, used in conjunction with equipment described in other volumes of the B3() Standard, except as restricted in B30.12 and B30.23. Slings fabricated from alloy steel chain, wire rope, metal mesh, synthetic fiber rope, synthetic webbing, and synthetic fiber yams in a protective cover(s) are addressed. Slings fabricated from oilier materials or constructions other than those detailed in this Volume shall be used only in accordance with the recommendations of the sling manufacturer or a qualified person.
(10) SECTiON 9-0.2: DEFINITIONS
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 of choke: angle formed in a sling body as it passes through the choking eye or fittings.
ançlc of loading: the acute angle between horizontal and the leg of the rigging, often referred to as horizontal angle.
assenshly: a synonym for sling. See sling.
authorized: approved by a duly constituted administrative 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 lifting hook.
9-2.5.5
Rated loads for angles of choke less than 120 deg shall be determined by using the values in Fig. 9-2.5.4-1, the sling manufacturer, or a qualified person.
9-2.5.6
Other materials and configurations not covered by this Chapter shall he rated in accordance with the recommendation of the sling manufacturer or a qualified person and shall conform to all other provisions of this Chapter.
9-2.5.7
When components of the sling have a lower rated load than the wire rope with which it is being used, the sling shall be identified with a rated load consistent with the lowest load rating of any of the components.
SECTION 9-2.6: PROOF TEST REQUIREMENTS
9-2.6.1 General
(a) Prior to initial use, all new swaged sockets, poured sockets, turnback eyes, and mechanical joint endless wire rope slings shall be proof tested by the sling manufacturer or a qualified person.
(b) Prior to initial use, all wire rope slings incorporating previou%ly used or welded fittings and all repaired slings shall be proof tested by the sling manufacturer or a qualified person.
(c) All other new wire rope slings are not required to be proof tested unless specified by the purchaser.
9-2.6.2 Proof Load Requirements
(a) For single- or multiple-leg slings and endless slings, each leg shall be proof loaded to the following load requirements based on fabrication method. In no case shall the proof load exceed 50% of the component ropes’ or structural strands’ minimum breaking strength.
(1) Mechanical Spike Slings. The proof load shall he a minimum of 2 times the single-leg vertical hitch rated load.
(2) Swaged Socket and Poured Socket Slings. The proof load shall be a minimum of 2 times and a maximum of 2.5 times the single-leg vertical hitch rated load.
NOTE: The proof load should be that specified by the wire rope or fitting manufacturer’s recommendation provided that ii is within the above-specified proof load range.
(3) Hand-Tucked Slings. If proof tested, the proof load shall be a minimum of 1 time and a maximum of 1.25 times the single-leg vertical hitch rated load.
ASME B30.9 pdf download
