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Significance and Use
5.1 The purpose of this test method is to provide a measurable criterion of performance about the level of cut resistance provided by different types of protective garments and protected coverings worn by chain saw operators.
5.3 The protection which can be demonstrated by the garments and coverings tested in accordance with this test method is achieved by: (1) the cut resistance of the material to cutting when put in contact with saw chain; (2) pulling a part of the material or yarns in the material so that they are drawn into the chain and drive mechanism to block the chain movement; (3) the fibers of the materials used to demonstrate both high resistance to cutting and the capacity to absorb rotational energy, so that chain speed can be slowed down sufficiently to stop the movement of the saw chain; or (4) any combination of these.
5.5 In case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should perform comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens from the same lot of components to be evaluated. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. If a bias is found, either its cause must be determined and corrected or the purchaser and the supplier must agree to interpret future test results in light of the known bias.
1.2.1 By agreement between the purchaser and the supplier, or as required by established safety standards, it will be decided if this test method will be used to determine one or both of the following: (1) chainspeed 50 (CS50), and (2) success/failure (jamming/chain stop or no cut in less than 1.5 seconds) at specified chain speed.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Federal StandardFS5100-86 Type II, Cloth, Duck, Nylon, Polyurethane Coated
D123 Terminology Relating to Textiles
D1056 Specification for Flexible Cellular Materials--Sponge or Expanded Rubber
D1776 Practice for Conditioning and Testing Textiles
F1494 Terminology Relating to Protective Clothing
AATCC Test MethodsAATCC158 Dimensional Changes on Dry Cleaning in Perchloroethylene: Machine Method
Military StandardsMIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
ICS Number Code 13.340.10 (Protective clothing)
UNSPSC Code 46180000(Personal safety and protection); 27112746(Chain saw)