Document ID: chunk:federal_register_of_legislation:F2019L00026:front:0:p31
Version: federal_register_of_legislation:F2019L00026
Segment Type: other
Provision Reference: 
Character Range: 87102–89775

this test, the angles of the straps shall be maintained as shown in Annex 11, Figure 2, to this Regulation.
               The steady load of 0.5 daN shall be maintained during the test.
               For cases where the strap changes direction more than once in passing through a rigid part, the load of 0.5 daN may be increased so as to achieve the prescribed strap movement of 300 mm through that rigid part.
              7.4.1.6.4.3. Procedure 3: for cases where the strap is fixed to a rigid part by sewing or similar means.
               The total back and forth motion shall be 300 ± 20 mm but the 5 daN load shall only be applied during a shift of 100 ± 20 mm for each half period (see Annex 11, Figure 3, to this Regulation).
              7.4.2. Test of breaking strength of strap (static test)
              7.4.2.1. The test shall be carried out each time on two new samples of strap, of sufficient length, conditioned in conformity with the provisions of paragraph 7.4.1. above.
              7.4.2.2. Each strap shall be gripped between the clamps of a tensile-testing machine. The clamps shall be so designed as to avoid breakage of the strap at or near them. The speed of traverse shall be about 100 mm/min. The free length of the specimen between the clamps of the machine at the start of the test shall be 200 mm ± 40 mm.
              7.4.2.3. The tension shall be increased until the strap breaks, and the breaking load shall be noted.
              7.4.2.4. If the strap slips or breaks at or within 10 mm of either of the clamps the test shall be invalid and a new test shall be carried out on another specimen.
              7.4.3. Width under load
              7.4.3.1. The test shall be carried out each time on two new samples of strap, of sufficient length conditioned in conformity with the provisions of paragraph 7.4.1. above.
              7.4.3.2. Each strap shall be gripped between the clamps of a tensile-testing machine. The clamps shall be so designed as to avoid breaking of the strap at or near them. The speed of traverse shall be about 100 mm/min. The free length of the specimen between the clamps of the machine at the start of the test shall be 200 mm ± 40 mm.
              7.4.3.3. When the load reaches 980 daN + 100 - 0 daN, the machine shall be stopped and the measurement shall be completed within 5 seconds. The test has to be performed separately from the tensile test.
              7.5. Test of belt assembly components incorporating rigid parts
              7.5.1. The buckle and the adjusting device shall be connected to the tensile-testing apparatus by the parts of the belt assembly to which they are normally