Common use of Procedure 3 Clause in Contracts

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 ▇▇▇ 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. 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. When the load reaches 980 ▇▇▇, the width of the strap shall be measured without stopping the machine. 7.4.2.4. The tension shall be increased until the strap breaks, and the breaking load shall be noted. 7.4.2.5. 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. 7.5. 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 assemb ly to which they are normally attached, and the load shall then build up to 980 ▇▇▇. In the case of harness belts, the buckle shall be connected to the testing apparatus by the straps which are attached to the buckle and the tongue or two tongues located in an approximately symmetrical way to the geometric centre of the buckle. If the buckle, or the adjusting device, is part of the attachment or of the common part of a three-point belt, the buckle or adjusting device shall be tested with the attachment, in conformity with paragraph 7.5.2. below, except in the case of retractors having a pulley or strap guide at the upper belt anchorage, when the load will be 980 ▇▇▇ and the length of strap remaining wound on the reel shall be the length resulting from locking as close as possible to 450 mm from the end of the strap. 7.5.2. The attachments and any belt adjustment devices for height shall be tested in the manner indicated in paragraph 7.5.1., but the load shall be 1,470 ▇▇▇ and shall, subject to the provisio ns of the second sentence of paragraph 7.7.1. below, be applied in the least favourable conditions likely to occur in a vehicle in which the belt is correctly installed. In the case of retractors the test is performed with the strap completely unwound from the reel. 7.5.3. Two samples of the complete belt assembly shall be placed in a refrigerated cabinet at -10° + 1 °C for two hours. The mating parts of the buckle shall be coupled together manually immediately after being removed from the refrigerated cabinet. 7.5.4. Two samples of complete belt assembly shall be placed in a refrigerated cabinet at -10 °C + 1 °C for two hours. The rigid items and parts made of plastics under test shall then be laid in turn upon a flat rigid steel surface (which has been kept with the samples in the refrigerated cabinet) placed on the horizontal surface of a compact rigid block with a mass of at least 100 kg and within 30 seconds of being removed from the refrigerated cabinet, an 18 kg steel mass shall be allowed to fall under gravity through 300 mm on to the test sample. The impact face of the 18 kg mass shall take the form of a convex surface with a hardness of at least 45 HRC having a transverse radius of 10 mm and a longitudinal radius of 150 mm placed along the centre line of the mass. One test sample shall be tested with the axis of the curved bar in line with the strap and the other sample shall be tested at 90° to the strap. 7.5.5. Buckles having parts common to two safety-belts shall be loaded in such a way as to simulate the conditions of use in the vehicle with seats in the mid position of their adjustment. A load of 1,470 ▇▇▇ shall be applied sumultaneously to each strap. The direction of the application of load shall be established according to paragraph 7.7.1. below. A suitable device for the test is shown in Annex 10 to this Regulation. 7.5.6. When testing a manually adjusting device, the strap shall be drawn steadily through the adjusting device, having regard for the normal conditions of use, at a rate of approximately 100 mm/s and the maximum force measured to the nearest 0.1 ▇▇▇ after the first 25 mm of strap movement. The test shall be carried out in both directions of strap travel through the device, the strap being cycled 10 times prior to the measurement. 7.6. Additional tests for safety-belts with retractors

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 ▇▇▇ load shall only be applied during a shift of 100 + 20 mm for each half period (see Annex 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. 7.4.2.2. Each strap shall be gripped between the clamps of a tensile-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. When the load reaches 980 ▇▇▇, the width of the strap shall be measured without stopping the machine. 7.4.2.4. The tension shall be increased until the strap breaks, and the breaking load shall be noted. 7.4.2.5. 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. 7.5. 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 assemb ly assembly to which they are normally attached, and the load shall then build up to 980 ▇▇▇. In the case of harness belts, the buckle shall be connected to the testing apparatus by the straps which are attached to the buckle and the tongue or two tongues located in an approximately symmetrical way to the geometric centre of the buckle. If the buckle, or the adjusting device, is part of the attachment or of the common part of a three-point belt, the buckle or adjusting device shall be tested with the attachment, in conformity with paragraph 7.5.2. below, except in the case of retractors having a pulley or strap guide at the upper belt anchorage, when the load will be 980 ▇▇▇ and the length of strap remaining wound on the reel shall be the length resulting from locking as close as possible to 450 mm from the end of the strap. 7.5.2. The attachments and any belt adjustment devices for height shall be tested in the manner indicated in paragraph 7.5.1., but the load shall be 1,470 ▇▇▇ and shall, subject to the provisio ns provisions of the second sentence of paragraph 7.7.1. below, be applied in the least favourable conditions likely to occur in a vehicle in which the belt is correctly installed. In the case of retractors the test is performed with the strap completely unwound from the reel. 7.5.3. Two samples of the complete belt assembly shall be placed in a refrigerated cabinet at -10° + 1 °C for two hours. The mating parts of the buckle shall be coupled together manually immediately after being removed from the refrigerated cabinet. 7.5.4. Two samples of complete belt assembly shall be placed in a refrigerated cabinet at -10 °C + 1 °C for two hours. The rigid items and parts made of plastics under test shall then be laid in turn upon a flat rigid steel surface (which has been kept with the samples in the refrigerated cabinet) placed on the horizontal surface of a compact rigid block with a mass of at least 100 kg and within 30 seconds of being removed from the refrigerated cabinet, an 18 kg steel mass shall be allowed to fall under gravity through 300 mm on to the test sample. The impact face of the 18 kg mass shall take the form of a convex surface with a hardness of at least 45 HRC having a transverse radius of 10 mm and a longitudinal radius of 150 mm placed along the centre line of the mass. One test sample shall be tested with the axis of the curved bar in line with the strap and the other sample shall be tested at 90° to the strap. 7.5.5. Buckles having parts common to two safety-belts shall be loaded in such a way as to simulate the conditions of use in the vehicle with seats in the mid position of their adjustment. A load of 1,470 ▇▇▇ shall be applied sumultaneously to each strap. The direction of the application of load shall be established according to paragraph 7.7.1. below. A suitable device for the test is shown in Annex annex 10 to this Regulation. 7.5.6. When testing a manually adjusting device, the strap shall be drawn steadily through the adjusting device, having regard for the normal conditions of use, at a rate of approximately 100 mm/s and the maximum force measured to the nearest nearest 0.1 ▇▇▇ after the first 25 mm of strap movement. The test shall be carried out in both directions of strap travel through the device, the strap being cycled 10 times prior to the measurement. 7.6. Additional tests for safety-belts with retractors