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16/30332741 DC BS EN ISO 15012-3. Health and safety in welding and allied processes. Requirements, testing and marking of equipment for air filtration. Part 3. Determination of the capture efficiency of on-gun welding fume extraction devices >
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16/30332741 DC BS EN ISO 15012-3. Health and safety in welding and allied processes. Requirements, testing and marking of equipment for air filtration. Part 3. Determination of the capture efficiency of on-gun welding fume extraction devices, 2016
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Test equipment and materials
- 5.1 General requirement
- 5.2 Test chamber
- 5.3 Isokinetic samplers
- 5.4 Total fume and isokinetic filters
- 5.5 Extraction fan
- 5.6 On-torch extraction unit
- 5.7 Equipment for measuring welding current, welding voltage, wire feed speed and arcing time
- 5.8 Equipment for direct-reading of fume concentration
- 5.9 Equipment for measuring the mass of fume collected
- 5.10 Equipment for measuring shielding gas volume flow rate
- 5.11 Device for automatic welding
- 5.12 Device for measuring contact tip to workpiece distance (CTWD)
- 5.13 Device for measuring static pressure
- 5.14 Device for measuring the mass flow rate
- 5.15 Materials
- 6 Test procedure
- 6.1 Preliminary tests
- 6.1.1 Setting the shielding gas flow rate
- 6.1.2 Measuring the flow rates and determination of leakage
- 6.2 Setting up the test equipment
- 6.3 Capture efficiency tests
- 6.3.1 General
- 6.3.2 Test procedure
- 6.3.3 Calculation of the results
- 7 Test parameters for generating comparable test report capture efficiency data
- 8 Test report
- Annex A (informative) Examples of test chambers
- Annex B (informative) Equipment notes
- Annex C (informative) Trial tests
- Annex D (normative) Test procedures
- Annex E (informative) Data processing for test method 3
- Annex F (normative) Test parameters form to be filled
- Annex G (informative) Suggested parameters for testing
- Annex H (informative) Information about the necessity to measure leakage
- Bibliography [Go to Page]