PD CEN/TR 14920:2005
Current
The latest, up-to-date edition.
Jetting resistance of drain and sewer pipes. Moving jet test method
Hardcopy , PDF
English
21-04-2005
Foreword
1 Scope
2 Definitions and Symbols
2.1 Definitions
2.2 Further symbols
3 Test method
3.1 Principle
3.2 General Requirements
3.2.1 Water source
3.2.2 Pressure measurement
3.2.3 Test temperature
3.3 Apparatus
3.3.1 Pump unit
3.3.2 Flow rate and pressure accuracy
3.3.3 Nozzle
3.4 Test rig
3.5 Test assembly
3.6 Procedure
3.6.1 Pre-test procedure
3.6.2 Test procedure
3.7 Recording of test results
Annex A (informative) Guidance on the evaluation of
surface damage
Annex B (normative) Determination of jet spread angle
Annex C (informative) Basic Principles for calculation of
C[d], P[j] and D[j]
C.1 Calculation of C[d]
C.2 Jet Power P[j]
C.3 Jet Power Density D[j]
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