DIN 24163-2 E : 1985

1 Scope and field of application<br>2 Terminology<br>3 Nomenclature, symbols, units<br>4 Set-up of standardized test airways<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.2 Types of test airway<br>5 Design and dimensions of test airway components<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.1 Volume flow rate measuring device<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.2 Transitions and intermediate ducts<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.3 Auxiliary ventilator<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.4 Control device<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.5 Test chamber<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.6 Test duct<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.7 Fans with outlet side equalizing section<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.8 Unobstructed discharge zone<br>6 Measuring methods and measuring instruments<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.1 Measurement of variable quantities<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.2 Pressure measurement<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.3 Rotational speed measurement<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6.4 Measurement of fan shaft power<br>7 Verification of instruments<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.1 Checking of volume flow rate measuring devices <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;similar to standard devices<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.2 Adjustment of control device<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.3 Checking of velocity distribution at the pressure<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;measuring point<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7.4 Pressure loss measurement<br>8 Evaluation, presentation and test results<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.1 Evaluation of test results<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.2 Uncertainty of measurement<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.3 Conversion of test results in accordance with <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;catalogue data<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8.4 Example of application

Applies to fans as defined in clause 2, in conjunction with DIN 24163 Part 1.