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1.1 This specification covers six mechanical tests, one corrosion resistance test, and the minimum performance requirements for these tests. This specification applies to carabiners designed specifically for use by rescue personnel during both training exercises and actual rescue operations. This specification does not apply to recreational use carabiners.

1.2 Two different types of carabiners are defined in this specification, a heavy-duty rescue carabiner and a standard-duty rescue carabiner.

1.3 Tests contained herein are destructive in nature. Carabiners subjected to any of these tests shall not be used in any way after testing except in evaluation the results of such testing.

1.4 This specification does not imply approval of any method of use of rescue carabiners. In addition, the tests described are laboratory tests and do not duplicate field conditions. Furthermore, the test load values contained herein are not to be interpreted as the forces which a rescue carabiner may be subjected to, or may be expected to sustain, in actual field use.

1.5 Quality control is solely the responsibility of the manufacturer or purchaser, or both, and is not addressed by this specification.

1.6 The values stated in SI units are to be regarded as the standard.

1.7 This standard may involve hazardous materials, operations, and equipment. 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 appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

5.1 Gate Function Load Test—This test verifies that the gate can be opened (with the gate locking mechanism in the unlocked position) and that the gate can not be opened (with the gate locking mechanism in the locked position) while loaded with Function Test Force #1 along the major axis.

5.2 Gate Locking Mechanism Function Load Test—This test verifies that the gate locking mechanism can be unlocked, after Function Test Force #2 has been applied along the major axis and released.

5.3 Major Axis Gate Closed Function Load Test—This test verifies that the gate functions as originally intended, after Function Test Force #3 has been applied and released.

5.4 Major Axis Gate Closed Ultimate Strength Test—This test is intended to show the ultimate strength of the carabiner in the major axis with the gate closed.

5.5 Major Axis Gate Open Ultimate Strength Test—This test is intended to show the ultimate strength of the carabiner in the major axis with the gate open.

5.6 Minor Axis Gate Closed Ultimate Strength Test—This test is intended to show the ultimate strength of the carabiner in the minor axis with the gate closed.

5.7 Corrosion Test—This test is intended to verify that the carabiner is produced from a corrosion-resistant material, or adequately covered with a protective coating.