Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 6461

e) The applicant shall provide evidence to the certificating authority, by means of detailed traverses, that the proposed probe design and position does provide a representative sample for each prescribed power setting. 2.2 Sampling line for smoke emissions 2.2.1 The sample shall be transferred from the probe to the sample collection system via a line of 4.0 to 8.5 mm inside diameter taking the shortest route practicable which shall in no case be greater than 25 m. The line temperature shall be maintained at a temperature between 60°C and 175°C with a stability of ±15°C, except for the distance required to cool the gas from the engine exhaust temperature down to the line control temperature. 2.2.2 Sampling lines shall be as “straight through” as possible. Any necessary bends shall have radii which are greater than 10 times the inside diameter of the lines. The material of the lines shall be such as to discourage build-up of particulate matter or static electricity. Note.— Stainless steel, copper or carbon-loaded grounded polytetrafluoroethylene (PTFE) meet these requirements. 2.3 Smoke analysis system Note.— The method prescribed herein is based upon the measurement of the reduction in reflectance of a filter when stained by a given mass flow of exhaust sample. The arrangement of the various components of the system for acquiring the necessary stained filter samples shall be as shown schematically in Figure 2-1. An optional bypass 2007/70/II. szám Appendix 2 Annex 16 — Environmental Protection 11/11/93 around the volume meter may be installed to facilitate meter reading. The major elements of the system shall meet the following requirements:

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