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GLOSSARY
ORGANIZATIONS
INDUSTRY TERMS
ACRP
Association of Crane & Rigging Professionals
28175 Haggerty Road, Novi, MI 48377
(800) 690-3921
ANSI
Refers to American National Standards Institute
Specifications published by ANSI
1899 L Street, NW, 11th Floor Washington, DC, 20036
(202) 293-8020.
ASME
The American Society of Mechanical Engineers
Two Park Avenue, New York, NY 10016-5990
(800) 843-2763.
ASTM
Refers to American Society of Testing and Materials
Specifications published by ASTM
100 Barr Harbor Dr., West Conshohocken, PA 19428
(610) 832-9500
AWEA
American Wind Energy Association
1501 M St. NW, Suite 1000, Washington, DC 20005
(202) 383-2500
AWRF
Associated Wire Rope Fabricators
P.O. Box 748, Walled Lake, MI 48390
(800) 444-2973
CVSA
Commercial Vehicle Safety Alliance
6303 Ivy Lane, Suite 310, Greenbelt, MD 20770-6319
(301) 830-6143
DOT
Department of Transportation
1200 New Jersey Ave, SE, Washington, DC 20590
(202) 366-4000
ISO
International Organization for Standardization
ISO Central Secretariat: Geneva Switzerland
NACM
Refers to National Association of Chain Manufacturers
Specifications published by NACM
Post Office Box 89014, Tucson, AZ 85752-9014
(520) 886-0695
OSHA
Occupational Safety & Health Administration
U.S. Department of Labor
200 Constitution Avenue, Washington, D.C. 20210
(800) 321-6742.
SC&RA
Specialized Carriers & Rigging Association
5870 Trinity Parkway, Suite 200, Centreville, VA 20120
(703) 698-0291
WSTDA
Web Sling & Tie Down Association
(443) 640-1070.
ANGLE OF LOADING
The acute angle between the horizontal and the leg of
the rigging referred to as the horizontal angle.
BASKET HITCH
Rigging a sling in which the sling is passed around the load and
both loop eyes or end fittings are attached to the hoist, crane or
lifting device.
BRIDLE SLING
Sling composed of multiple legs with a fitting that attaches
to the lifting hook.
CHOKER HITCH
A type of rigging hitch in which the sling is passed around
the load then through one loop eye or other end fitting,
with the other loop eye or end fitting attached to the hoist,
crane or lifting device. This method will reduce the lifting
capacity of a sling.
CLEVIS
A U-shaped fitting with holes in each end through which a pin
or bolt is run.
COMPETENT PERSON
As defined by OSHA, this is someone who is capable of
identifying existing and predictable hazards in the surroundings
or working conditions which are unsanitary, hazardous, or
dangerous to employees, and who has authorization to take
prompt corrective measures to eliminate them.
COUPLING LINK
An alloy steel welded coupling link used as an intermediate
link to join alloy steel chain to master links.
DATE CODE (ALSO KNOW AS
TRACE CODE)
A series of letters, numbers or both embossed on products
that identifies its manufacturing history.
DESIGN FACTOR (SAFETY FACTOR)
An industry term usually computed by dividing breaking
strength by the catalog working load limit and
generally expressed as a ratio – for example 4:1.
ELONGATION
A test performed on products to determine the amount of
stretch prior to fracture. This is typically stated as a percentage.
LOAD
The total superimposed weight or force to be overcome
by the hoisting and rigging equipment.
MASTER LINK
Forged or welded steel link used to support all legs
of an alloy-steel chain or wire rope sling.
MECHANICAL COUPLING LINK
A non-welded, mechanically closed steel link used to attach
master links, hooks, and other attachments to alloy steel chain.
MESSENGER SLING
A short, standard eye-eye wire rope sling often used to connect
between a crane hook and another wire rope sling or bridle.
MINIMUM BREAK FORCE OR MBS
The minimum force at which the product has been tested during
manufacture that includes testing to break when a constantly
increasing force is applied in direct tension. This test is a
manufacturer’s attribute acceptance test and SHALL NOT be
used as criteria for service and design purposes.
CHAIN & RIGGING ATTACHMENTS (CMRP-6)
190
PHONE: 800.888.0985
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