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ISO9001
ISO9001:2008

MFL & UT CORROSION INSPECTION COURSE: XC90

Course Title
MFL & UT TANK CORROSION INSPECTION TEAM LEADERS COURSE: Inspection of Steel Aboveground Storage Tanks Used in the Industry (TWI Exam Preparation Training)

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Course Date / Venue
Course Venue:  Silverwing Middle East, training school, Dubai
Date:  please see training schedule

Course Reference
SWUK XC90

Course Duration/Credits
Five days - 40 hours

Course Objectives
In order to meet the needs of today's fast changing inspection industry, Silverwing (UK) Ltd has developed the "MFL & UT Tank Corrosion Inspection Course with TWI Exam Preparation”.

The course includes notes and summaries on the tank inspection standards referenced in the API 653, EEMUA 159 and UK HSE 481 report. 

This comprehensive 40 hour course consists of five 8-hour teaching days.  It is designed to accomplish a two-fold training agenda: 

To train those individuals who are interested in obtaining the TWI Tank Inspection Certification.
Train those who require to operate as a site supervisor or Team leader for tank inspection.
Train those who require a working knowledge of the intricacies encountered in the working environment.

Additionally, theoretical exams are given at the end of the course; homework maybe handed out at the end of each class day, which consists of 25 questions per day and is reviewed at the beginning of the following day, and a “software as well as practical” exam is administered at the end of the course.

Silverwing (UK) Ltd is proud of the high pass rate attained by its students who have sat for the TWI MFL personnel certification exam.

Training Methodology
This interactive training course includes the following training methodologies as a percentage of total tuition hours:-
50%      Lectures
30%      Workshops, Group Work & Practical Exercises
20%      Videos & Software

Who Should Attend
The course is intended for Inspection Engineers who are seeking certification as a Team leader. Other engineers, managers or technical staffs who are dealing with Steel Aboveground Storage Tanks used in the Petrochemical Industry may also benefit.

Candidates should have the following minimum criteria:

English speaking
Computer literate in all Microsoft XP professional or later including MS Word as well as MS Excel functions
Preferably ASNT Level II UT certification or similar
Able to read Jaeger No 2 or equivalent type eye chart at a distance of not more than 305 mm and illustrate a test within last 12 months
Able to illustrate completion of colour detection test using Ishihara isochromatic plate within last 3 years

Course Certificate
Silverwing (UK) Ltd certificate will be issued to all attendees completing minimum of 75% of the total tuition hours of the course and acceptable examination pass mark for grading as a Level II MFL/UT technician or team leader as appropriate

Course Accreditation
Silverwing (UK) Ltd courses meet the professional certification and continuing education requirements for participants seeking Continuing Education Units (CEUs) in accordance with the rules & regulations of the International Association for Continuing Education & Training (IACET). IACET is an international authority that evaluates programs according to strict, research-based criteria and guidelines. The CEU is an internationally accepted uniform unit of measurement in qualified courses of continuing education.
Will this satisfy API 653 Appendix G

The Welding Institute (TWI) recognise the course as a valuable requirement of the Qualification for Tank Bottom Examination (MFL) personnel which is a requirement for any organisation wishing to perform inspection services for Shell BV organisation and their affiliates.

Required Codes and Standards:
Listed below are the effective editions of the publications required for any competent site supervisor Aboveground Storage Tank Inspector.

API Standard 653, Tank Inspection, Repair, Alteration, and Reconstruction, Third Edition, December 2001; including Addendum 1(September 2003) and Addendum 2 (November 2005).  IHS Product Code API CERT 653

  • EEMUA Standard 159
  • HSE 481

Course Fee
£800.00 per Delegate. This rate includes Participant’s Pack (Folder, Manual, Hand-outs, etc.), Signed copy of the 3rd Edition Ultrasonic Flaw Detection for Technicians, buffet lunch, coffee/tea on arrival, morning & afternoon of each day.

Accommodation
Accommodation is not included in the course fees. However, any accommodation required can be arranged by Silverwing (UK) Ltd at the time of booking.

Course Programme
The following programme is planned for this course. However, the course instructor(s) may modify this programme before or during the course for technical reasons with no prior notice to participants. Nevertheless, the course objectives will always be met:

Day 1: MFL    
   
0800 – 0815 Registration & Coffee
   
0815 – 0830 Welcome
   
0830 – 1000 Introduction – Causes of corrosion in tank floors, History, magnet properties, polarity, attraction & repulsion, Magnetographs, Field strength(H), Flux density(B), units Telsa , Gauss
   
1000 – 1015 Break
   
1015 – 1045 Magnetic flow, Materials, ferromagnetic, Diamagnetic non magnetic, permeability, reluctance.
   
1045 – 1230 Bar magnets, consequent poles, leakage fields, methods of detection of flux leakage, magnetic particle coils, hall effect, vectors, horizontal and vertical components
   
1230 – 1330 Lunch
   
1330 – 1445 Methods of magnetisation, permanent magnets, electromagnets, Hysteresis, demagnetisation, magnetic induction, Faradays laws, relationship between speed and induced signal
   
1445 – 1500 Break
   
1500 – 1715 MFL corrosion detection, schematic layout, Floormap systems, HandScan system, magnet carriage, lift off, hazards & safety precautions, sensor head, sensor arrangement, lift off, electronic module, battery & motor unit
   
1715 – 1730 Review day , Questions & Answers session, distribute homework ,if applicable
   
1730 End of Day One
   
   
Day 2: MFL  
   
0815 – 0830 Review previous day and homework Answers
   
0830 – 1000 Demonstrations -
   & practice
Correct Transit case removal of Floormap unit and  replacement procedure.
Fitting & removing the battery
Battery Typical run time & charging time
   
1000 – 1015 Break
   
1015 – 1230 Demonstrations -
  & practice
Sensitivity & stability change that will indicate low battery voltage condition
Battery charger voltage input range & charging procedure
Sensor head adjustment
Sensor head heights for various plate & coating thickness
   
1230 – 1330 Lunch
   
1330 – 1400 Floormap controls, power, thickness range, threshold, auto stop, Resets, Channel indicators, drive handle, removable ( left) handle, cables & connectors
   
1400 – 1500 Setting up the Floormap unit, Warm up time, range selector switch, auto stop offset
   
1500 – 1515 Break
   
1515 - 1615 Inspection, safety requirements ( HSE 481), Tank cleanliness for inspection, plate numbering, tank datum, scanning patterns, marking up for UT verification
   
1615 – 1715 Limitations & sources of error, cleanliness, Weldments & spatter, plate contour & distortion, speed & handling, floor coating & products residue or spillage. Maintenance & cleanliness of Floormap scanner
   
1715 – 1730 Review day , Questions & Answers session, distribute homework ,if applicable
   
   
Day 3:   UT  
   
0815 – 0830 Review previous day  and homework answers
   
0830 – 0945 Basic principles of sound, vibration, definitions of cycle, amplitude, frequency, acoustic spectrum, modes of propagation, velocity, wavelength
   
0945 – 1000 Break
   
1000 – 1115 Properties of sound, acoustic impedance, reflection, transmission, couplant, refraction & mode conversion
   
1115 – 1230 Generation & detection of ultrasonic waves, Piezo electric effect, crystal materials, frequency/thickness constant, compression wave probes, single & twin crystal probes design and use, band width, pulse length, resolution
   
1230 – 1330 Lunch
   
1330 – 1445 Pulse echo systems, digital thickness meters, A  scan flaw detectors, B and C scan corrosion mapping  units, control & functions of flaw detectors
   
1445 – 1500 Break
   
1500 – 1545 Ultrasonic bema shapes, single crystal, twin crystal, dead zone, near filed, far filed, implications on defect detection
   
1545 -  1715 Calibration of time base & amplifier, general for accurate thickness measurements, laminations, corrosion pitting & practical exercises
   
1715 – 1730 Review day , Questions & Answers session, distribute homework ,if applicable
   
   
Day 4:    UT & MFL
   
0815 – 0830 Review previous day  and homework answers
   
0830 – 1000 Factors affecting signal amplitude, area, depth, orientation, shape, surface, roughness, Material, probe type including practical sessions
   
1000 – 1015 Break
   
1015 – 1230 Erosion & types of Corrosion such as conical, lake , pipe, bacterial, implications on detect ability, pattern recognition in dynamic scanning as an aid to  detect ability of pitting type corrosion including practical  sessions
   
1230 – 1330 Lunch
   
1330 – 1430 Measurement of remaining wall thickness at located pitting sites, method and limitations, typical  accuracy expected
   
1430 - 1530 Reporting – correlation of MFL & UT data – Floor plan diagrams
   
1530 – 1545 Break
   
1545 – 1715 Reporting – correlation of MFL & UT data – Floor plan diagrams
   
1715 – 1730 Review day , Questions & Answers session,
   
   
Day 5:   Practical sessions, Written & practical tests  
   
0815 – 0830 Review previous day 
   
0800 – 1000 Revision and practice sessions
   
1000 – 1015 Break
   
1015 – 1230 Revision & practice  session
   
1230 – 1330 Lunch
   
1330 – 1530 Written tests  2 papers
   
1530 – 1545 Break
   
1545 – 1600 Software & practical tests
   
   
   

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