Access
to Certification
Access to certification schemes is not improperly
restricted. The sole criteria for certification are given in the document (and
any subsequent amendments) and no other criteria will be applied. Certification
is not conditional on the candidate applying for other services or membership
from TWI Certification Ltd, its parent, or any other groups or associations.
This document prescribes procedures by which
personnel may be examined, and, if successful, certificated for the duties of Welding
Inspector (Level 2). The examinations are primarily intended for fusion welded
steel construction, but endorsements are available for other material groups.
There are recognition arrangements between TWI
Certification Ltd and other Welding Inspector Certification Schemes: for
example the American Welding Society - Certificated Welding Inspector and the
Southern African Institute of Welding - Welding Fabrication Inspector and the Welding
Technology Institute Australia Welding Inspector. Persons possessing qualification(s)
in these schemes may be allowed exemptions from part(s) of the CSWIP
examination(s).
Details on all recognition arrangements are
available at www.cswip.com
This scheme is not normally intended to apply to
engineers or engineering surveyors concerned with the total certification of
the plant.
Responsibilities
of personnel
Typical areas of work activity of personnel for whom
CSWIP welding inspector qualifications would be suitable are given below:
Welding Inspectors (Level 2)
Codes and standards - Application of the requirements
of codes and standards
Parent material identity
Verification against documentation and markings of
correctness of parent material
Welding consumables identity
Verification of correctness of welding consumables
(electrodes, filler wires, consumable inserts, gases, fluxes etc)
Pre-weld inspection - Verification that dimensions
fit up and weld preparations are in accordance with the engineering drawings.
Preheating - Verification that pre heat (where
required) is in accordance with specified procedures.
Post weld visual inspection - Visual inspection and
dimensional check of completed weldment against specification requirements and
drawings
In-process welding surveillance
Surveillance during welding to verify compliance
with specified procedure including any pre heat, inter pass temperature control
and post heat requirements.
Supervision of Visual Welding Inspectors in the conduct
of activities above
Welding procedures - Establishing that a procedure
is available, has been approved as required by the appropriate authority and is
being employed in production.
Witnessing of welder and procedure approval tests - Witnessing
the preparation of test pieces and destructive tests, and verifying compliance with
appropriate standards and specifications
Welder approvals - Verification that adequate and
valid welder approvals are available, and that only approved welders as required
are used in production
Post weld heat treatment - Verification that post
weld heat treatment has been conducted in accordance with specification
requirements.
NDT reports - Assessment of NDT reports on welding
work for which the Welding Inspector is responsible.
Reports - Preparation of inspection reports.
Requirements
prior to taking a certification test
Job responsibilities and experience criteria for
examination eligibility as given below are strictly adhered to and enforced.
Welding Inspector for a minimum of 3 years with
experience related to the duties and responsibilities
Or
Certified Visual Welding Inspector (Level 1) for a
minimum of 2 years with job responsibilities in the areas listed in above.
Or
Welding Instructor or Welding Foreman/Supervisor for
a minimum of 5 years, In addition to all of the above,
Training
All candidates (with the exception of ‘mature
candidates,’ see below) must attend a CSWIP approved course of training at the
appropriate level prior to examination. Details of such courses are available
on request.
A mature candidate route offering exemption from
formal training is available for candidates for Visual and Welding Inspector
who are able to demonstrate at least ten years' recent continuous experience in
welding inspection duties,
If a mature candidate is unsuccessful in obtaining
certification it will be necessary to undertake an approved course followed by
a full re-examination.
Health/Eyesight
Candidates need to be in satisfactory physical
condition and the person completing the application form will be required to
signify that the candidate's health and eyesight are adequate to enable him/her
to carry out his/her duties. An eyesight test certificate must be submitted
with the application form.
Examination
Procedure
The examination procedure for the Welding Inspector
(Level 2) consists of written, oral and practical examinations. Please refer to
Appendices 1 and 2 respectively for details of the examination format, syllabus
and specimen questions.
Written
examination
The written examination consists of both multiple
choice and narrative questions and is designed to test the candidate's
knowledge of the syllabus.
Practical
examination
Candidates will be required to inspect and report on
the following:
At least two completed welds for compliance with
stated requirements and, in addition, for the Welding Inspector grade only
A set of destructive tests (two macros or two bends
or two fractured fillets) for a welder or procedure approval test intended to
comply with a stated specification.
Application
for Examination and Fees
Candidates will be required to submit an application
form and a CV. All the information requested must be on these forms. No
applications can be considered confirmed until receipt of correctly completed
documents. Application forms ask for specific details of experience and training
and must be signed to the effect that these details are correct.
In the event of a false statement being discovered
on forms or on CVs any examination undertaken will be declared null and void. A
certificate is automatically invalidated if there are any outstanding
examination fees in respect of that certificate.
Examinations may be taken at any one of a number of
Test Centre’s in the UK and overseas. Lists are available on request.
Certification
Results
notices
All candidates will be sent a results notice. This
notice will also be sent to the organization paying the examination fee, if not
paid by the candidate.
Successful
candidates
Two copies of a certificate of proficiency will be
issued to the organization or person that pays the examination fees. Duplicate
certificates to replace those lost or destroyed will be issued only after
extensive enquiries.
Unsuccessful
candidates
Candidates who fail to obtain a certificate may
attempt one retest on those parts of the examination in which success was not
achieved. The retest must be completed within one year of the initial
examination; otherwise candidates will have to repeat the complete examination.
The retest (or complete re-examination) may not be
taken within 30 days of the previous examination.
Candidates who are unsuccessful in the will be
required to re-take the full approved course followed by the full examination.
Period
of validity
The certificate is valid for five years from the
date of completion of the initial test and may be renewed for a further five
years on application
For further general information contact:
TWI
Certification Ltd
Granta
Park
Great
Abington
Cambridge
CB21
6AL
UK
Phone: +44 (0) 1223 899000 Fax: +44 (0) 1223 894219
For
specific information on examinations and tests and arranging for them to be
carried out, contact the approved Examining Body:
TWI
Training and Examinations
Granta
Park
Great
Abington
Cambridge
CB21
6AL
UK
Phone:
+44 (0) 1223 899000 Fax: +44 (0) 1223 891630
APPENDIX
1: EXAMINATION SYLLABUS
Examination
format
Theory
Part A2:
General Welding Theory, Product Technology and NDT 30
multiple choice questions, Time allowed 45 minutes.
Theory
Part B2:
Specific Welding Technology, 4 questions from 6.
Time allowed 1hr 15mins.
Practical
Part A2:
Inspection of a plate butt weld to a code provided
by the Test Centre, Time allowed 1hr 15mins.
Practical
Part B2:
Inspection of a pipe butt weld to the candidate’s
nominated code or if not available it will be provided by the Test Centre. Time
allowed 1hr 45mins.
Practical
Part C2:
Inspection of a set of destructive test samples to a
specified standard (two macros, two bends or two fractures). Time allowed 45mins.
Pass mark for all parts is 70%.
Subjects
Candidates will need to demonstrate knowledge of the
Visual Welding Inspector (Level 1) syllabus plus:
Materials
Size: thicknesses, lengths, diameters
Type: grade composition against documentation
Condition: cleanliness and surface for welding
Heat treatment condition and distortion
The effect of composition, thickness and hydrogen on
welding of certain grades of steel, the techniques and control used to avoid
hydrogen induced cracking and lamellar tearing. Post welds heat treatment, its
conduct and control.
Welding
processes
The effect of variations in welding parameters, the
influence of process on appearance and penetration, and centerline cracking, British,
American and ISO symbols on drawings
Welding
procedures and welder approvals and their control
The essential features of a procedure. British,
European, American and other systems of procedure and welder approval and
appropriate documentation
Quality
control of welding
The implementation of quality controls and in-process
inspection, Organization and records
Destructive
tests
The selection and purpose of all destructive tests
specified in standards. Assessment of results
Non-destructive
testing
The methods, capabilities and limitations, and assessments
of reports related to penetrant, magnetic particle, radiographic and ultrasonic
testing of parent materials and welded joints.
Weld
defects
Identification of defects, Reasons for their
occurrence and acceptance
Distortion
The influence of welding techniques on distortion,
the control of distortion, the influence of heat treatment and machining
Reporting
The preparation of technical reports on all aspects
of inspection referred to above.
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