COURSE NAME:Leak Testing Level II


UPCOMING EVENTS


START DATE END DATE CITY/COUNTRY PRICE Request
This course can be scheduled at your convenience, to request this course please click here
OBJECTIVES:

 

  • The objective of the course is to present an overview of Leak Testing methods, identifying the advantages and limitations of this as compared to other methods of Non-destructive Testing.
OUTLINE:

 

Leak testing fundamentals

  • Reasons for leak testing
  • Functions of leak testing
  • Terminology
  • Leak testing units
  • Leak conductance

 

Leak testing standards

  • Leak standards
  • NationalInstituteofStandardsand Technology (NIST) traceability and calibration
  • Instrument calibration versus test qualification
  • System calibration techniques
  • Inaccuracy of calibration
  • Tracer-gas leak rate/air-equivalent leak rate

 

Leak testing safety

  • Safety considerations
  • Safety precautions
  • Pressure precautions
  • Tracer gas safety and monitoring
  • Safety devices
  • Cleaning and electrical hazards
  • Safe work practices
  • Safety regulations

 

Leak testing procedure

  • Basic categories and techniques
  • Leak location versus leakage measurement
  • Pressurization or evacuation
  • Sealed units with or without tracer gas
  • Units inaccessible from one or both sides
  • System at, above, or below atmospheric pressure

Leak testing specifications:

  • Design versus working conditions
  • Pressure and temperature control
  • Types of leak testing methods
  • Sensitivity of leak testing needed
  • Test method and sensitivity needed  
  • Preparation of a leak testing specification

 

Detector/instrument performance factors:

  • Design and use
  • Accuracy and precision
  • Linearity (straight/logarithmic scale)
  • Calibration and frequency
  • Response and recovery time

 

Physical Principles in Leak Testing:

1.1 Physical quantities

  • Fundamental units
  • Volume and pressure
  • Time and temperature
  • Absolute values
  • Standard versus atmospheric conditions
  • Leakage rates

1.2 Structure of matter

  • Atomic theory
  • Ionization and ion pairs
  • States of matter
  • Molecular structure
  • Diatomic and monatomic molecules
  • Molecular weight

1.3 Gas principles and laws

  • Brownian movement
  • Mean free path
  • Pressure and temperature effects on gases
  • Pascal’s law of pressure
  • Charles’ and Boyle’s gas laws
  • Ideal gas law
  • Dalton’s law of partial pressure
  • Vapor pressure and effects in vacuum

1.4 Gas properties

  • Kinetic theory of gases
  • Graham law of diffusion
  • Stratification
  • Avogadro’s principle
  • Gas law relationship
  • General ideal gas law
  • Gas mixture and concentration
  • Gas velocity, density and viscosity

 

Principles of Gas Flow

1.5 Standard leaks

  • Capillary
  • Permeation

1.6 Modes of gas flow

  • Molecular and viscous
  • Transitional
  • Laminar, turbulent, sonic

1.7 Factors affecting gas flow

1.8 Geometry of leakage path

  • Mean free flow of fluid
  • Clogging and check valve effects
  • Irregular aperture size
  • Leak rate versus cross section of flow
  • Temperature and atmospheric conditions
  • Velocity gradient versus viscosity
  • Reynolds number versus Knudsen number
WHO SHOULD ATTEND:

 

  • The course is designed for anyone who is interested in satisfying the classroom training requirements for Leak Testing Level II certifications or who needs a thorough knowledge and practical experience of Leak Testing Methods.
DURATION:
    • 5 Day(s)
  •  


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