Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:23:p3
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 23 (pt 3/15)
Character Range: 1904783–1907890

(c) Mean temperature during the hot soak test;
                  (d) Measurement during hot soak test, HSL;
                  (e) Measurement of first diurnal, DL1st day;
                  (f) Measurement of second diurnal, DL2nd day;
                  (g) Final evaporative test result, calculated according to paragraph 7. of this annex;
                  (h)  Declared fuel tank relief pressure of the system (for sealed tank systems);
                  (i) Puff loss loading value (in the case of using 'stand-alone test procedure' described in paragraph 6.7. of this annex).
Annex C4

Type 5 test
       (Description of the endurance test for verifying the durability of pollution control devices)

              1. Introduction

              1.1. This annex describes the test for verifying the durability of anti-pollution devices equipping vehicles with positive ignition or compression-ignition engines.

              For Level 1A;

              The durability requirements shall be demonstrated using one of the three options set out in paragraphs 1.2., 1.3. and 1.4. below.

              For Level 1B;

              The durability requirements shall be demonstrated using one of the two options set out in paragraphs 1.2. and 1.4. below.

              1.2. The whole vehicle durability test shall preferably be performed on a vehicle with the cycle energy demand of the VH (as defined in paragraph 4.2.1.1.2. of Annex B4) with the highest cycle energy demand of all of the Interpolation Families to be included in the durability family and shall be driven on a test track, on the road, or on a chassis dynamometer. The cycle energy demand of the test vehicle may be further increased to cover future extensions.

              1.3. This paragraph applies to Level 1A only;

               The manufacturer may choose to use a bench ageing durability test. The technical requirements for this test are set out in paragraph 2.2. of this annex.

              1.4. As an alternative to durability testing, where applicable a manufacturer may choose to apply the assigned deterioration factors from Table 3A and Table 3B (as applicable) in paragraph 6.7.2. of this Regulation.

              1.5. This paragraph is applicable for Level 1A only

              At the request of the manufacturer, the Technical Service may carry out the Type 1 test before the whole vehicle or bench ageing durability test has been completed using the assigned deterioration factors in Table 3A in paragraph 6.7.2. of this Regulation. On completion of the whole vehicle or bench ageing durability test, the Technical Service may then amend the type approval results recorded in Annex A2 to this Regulation by replacing the assigned deterioration factors in the above table with those measured in the whole vehicle or bench ageing durability test.

              1.6. Deterioration factors are determined using either the procedures set out in paragraphs 1.2. and, where applicable, paragraph 1.3. of this annex, or using the assigned values in the table referred in paragraph 1.4. of this annex. The deterioration