BS EN 14175-4:2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General on-site test conditions
5 Commissioning testing of type tested fume cupboards
  5.1 Scope and purpose
  5.2 Inspections
  5.3 Manufacturer's declarations or type test certification
  5.4 Face velocity test
       5.4.1 Objectives
       5.4.2 Test equipment and probe positions
       5.4.3 Test procedure and test results
       5.4.4 Test report
  5.5 Extract volume flow rate test
       5.5.1 Objectives
       5.5.2 Average face velocity method
       5.5.3 Calibrated pressure difference method
  5.6 Pressure drop test
       5.6.1 Objectives
       5.6.2 Test equipment and test procedure
       5.6.3 Expression of results
  5.7 Air flow visualization
       5.7.1 Objectives
       5.7.2 Test procedure
       5.7.3 Expression of results
  5.8 Room air velocity test
       5.8.1 Objectives
       5.8.2 Test equipment
       5.8.3 Probe positions
       5.8.4 Test procedure and test results
  5.9 Alarm system test
       5.9.1 Alarm by overriding the vertical sash stop
       5.9.2 Air flow indicator
  5.10 Containment test
       5.10.1 Objectives
       5.10.2 Test equipment, test procedure and data analysis
       5.10.3 Test report
  5.11 Sound pressure measurement
       5.11.1 Objectives
       5.11.2 Test procedure
       5.11.3 Test report
6 Routine testing of type tested fume cupboards
  6.1 Scope and purpose
  6.2 Face velocity test
       6.2.1 Objectives
       6.2.2 Test equipment and test procedure
       6.2.3 Test report
  6.3 Extract volume flow rate test
       6.3.1 Objectives
       6.3.2 Sequential average face velocity test
  6.4 Pressure drop test
  6.5 Air flow visualization
  6.6 Alarm system test
  6.7 Inspections
7 Qualification testing of non type tested fume cupboards
  7.1 Scope and purpose
  7.2 Inspections
  7.3 Manufacturer's declarations
  7.4 Face velocity test
  7.5 Extract volume flow rate test
  7.6 Pressure drop test
  7.7 Air flow visualization
  7.8 Room air velocity test
  7.9 Alarm system test
  7.10 Containment test
  7.11 Robustness of containment
  7.12 Air exchange efficiency
  7.13 Sound pressure measurement
  7.14 Illuminance test
8 Routine testing of qualified fume cupboards
9 On-site test reports
  9.1 Test report for commissioning testing of type
       tested fume cupboards
  9.2 Test report for routine testing of type tested
       fume cupboards
  9.3 Test report for qualification testing of non type
       tested fume cupboards
  9.4 Test report for routine testing of qualified fume
       cupboards
National annex NA (informative) Recommendations for
                  the exchange of information and
                  recommendations for installation

Provides a selection of on-site test methods for the following general purpose fume cupboards: - Fume cupboards designed in accordance with Part 2 of this European Standard and type tested in accordance with Part 3 of this European Standard. - Fume cupboards designed in accordance with Part 2 of this European Standard and not type tested.

This document specifies a selection of on-site test methods for the following general purpose fume cupboards:

• Fume cupboards designed in accordance with Part 2 of this European Standard and type tested in accordance with Part 3 of this European Standard.

• Fume cupboards designed in accordance with Part 2 of this European Standard and not type tested.

The test methods are designed to be used at the place of installation of the fume cupboard, usually a laboratory. They are used for commissioning after installation, for maintenance and for qualification purposes. For certain customer requirements additional or modified test methods may be necessary.

It is in the responsibility of the purchaser or user of a fume cupboard to decide which tests are to be performed. The commissioning testing can be selected and carried out from the type test methods. For routine testing, the number of test methods selected can be further reduced.