Hong Kong Association for Testing, Inspection and Certification Ltd.

Transcription

1 Hong Kong Association for Testing, Inspection and Certification Ltd. Professional Certification Scheme for Testing Personnel (Chemical Testing) 1

2 Examination Disclaimer Criteria, measurement techniques, methods and test standards as stipulated in respective Certification Criteria (CC01-CC06) are official documents. All examination questions are set based on these documents. All Certification Criteria are available for download from HKTIC s website 2

3 Scope of Certification Level Testing technician (CTT) Testing professional (CTP) Scope of chemical testing technique base CTT no sub-category CTP two sub-categories Elemental analysis Organic analysis 3

4 Certification criteria 6 Certification Handbooks CC01 - Chemical testing CC02 Construction materials testing CC03 Electrical products testing CC04 Microbiological testing CC05 Textiles and garments testing CC06 Toys and hardlines testing 4

5 Certification criteria Foreword 1- General 2-Scope of Certification 3-Eligibility for Certification 4-Examination Procedure 5-Application procedure for certification/examination 6-Appeal 7-Obligation 5

6 Certification criteria Appendix 1 Examination Syllabus and Specimen Questions of CTT Appendix 2 Examination Syllabus and Specimen Questions of CTP Appendix 3 Training courses approved by Certification Board Appendix 4 Guidelines for counting CPDUs Appendix 5 References 6

7 Certification Criteria Routes to be Certified Testing technician Diploma in relevant discipline + 2 years experience 10 years of experience Pass in examination (Scheme) Complete all the required training courses Certified Testing technician (CTT) 7

8 Certification Criteria Testing Professional Bachelor degree in relevant discipline + 3 years relevant experience CTT + 5 years of relevant supervisory experience post CTT HOKLAS AS+ 8 years of relevant experience 15 years of relevant experience, 5 years of which shall be at a managerial position Pass in examination (Scheme) Complete all the required training courses Professional interview Certified Testing Professional (CTP) 8

9 Certification criteria HOKLAS approved signatory with not less than 8 years of relevant experience (total relevant working experience); and the scope of signatory approval covering the major measurement techniques or methods as stipulated in respective Certification Handbook for the subcategory the certification is being sought 9

10 Certification criteria HOKLAS approved signatory The Scheme just recognize equivalence of technical knowledge of current HOKLAs Approved Signatory Signatory of MRA accreditation body will not be considered. 10

11 Examination (CTT) Part A (40/100) Understanding of ISO/IEC (10%) Quality Control (10%) Ethics (10%) Safety (10%) Part B (60/100) Techniques Equipment 11

12 Examination (CTT) Time = 120 minutes (2 hours) Passing marks >=60/100 Questions: 40 multiple choice questions (4 choices) 1.5 marks each 10 short questions 4 mark each Wrong answer for MC questions, deduce ½ of the mark i.e

13 Examination (CTT) Part A MC 1.5@ SQ 4@ Sub-total (marks) Quality Ethics Safety Part B Sub-total 40 (>=12) Technique Equipment Subtotal 60 (>=24) Total (>=60) 13

14 Appendix 1 - CTT Understanding of ISO17025 (Outline for CTT) Document control Verification of critical consumables Technical records Environmental conditions and prevention of contamination Traceability and use of CRM Sample handling such as storage conditions, etc. Sub-sampling requirements 14

15 Appendix 1 - CTT Management system documents generated by the laboratory should be uniquely identified. What pieces of information, name at least 4, should be included for such identification. 15

16 Appendix 1 - CTT Understanding of ISO17025 (Outline for CTT) Quality control Concept of quality control plan Review of control chart In process control checks to be implemented and their functions such as Reagent blank Method blank Duplicate Laboratory control sample Spike 16

17 Appendix 1 - CTT Specify the in-process control checks for a quantitative determination using instrumental technique. 17

18 Appendix 1 - CTT Laboratory safety (knowledge) General laboratory safety Safety Symbol of chemicals Incompatible chemicals Handling, transport and storage of chemicals Chemical spillage Use of fire extinguisher caused by chemicals Handling and storage of waste, waste disposal Use of fume hood 18

19 Appendix 1 - CTT What are the duties of employees in a Workplace for Health and Safety? (a) Do not obstruct means of escape from a workplace (b) Ensure exit doors are not locked or fastened (c )Use protective equipment provided by the employer for use in manual handling operations (d) Take reasonable care for the safety and health of other persons in the workplace (A) (a), (b) and (c) (B) (b), (c) and (d) (C) (a), (c) and (d) (D) All 19

20 Appendix 1 (CTT) Prevention of Bribery Ordinance, Cap. 201 Corruption Advantages Improper influence Confidentiality and proprietary right CSTP01 Regulations Certification Scheme of Testing Personnel Code of ethics in general Code of ethics in relation to employer Code of ethics in relation to public Obligation of Certified Testing Personnel Use of Certification symbol and claim of certification status 20

21 Appendix 1 - CTT According to the Prevention of Bribery Ordinance, name 2 things that are considered as advantages. 21

22 Appendix 1 - CTT Understanding on test standard and measurement techniques S.I. units and their use Cleansing of labware Special sample handling techniques ph and buffer solutions Gravimetric methods Volumetric analysis Preparation of standard solutions Titration 22

23 Appendix 1 - CTT Understanding on test standard and measurement techniques Filtration and precipitation Digestion methods Microwave, dry ash by muffle furnace and wet digestion/hot block digestor Extraction methods Solvent extraction, reflux/soxhlet extraction Cleanup methods 23

24 Appendix 1 - CTT Knowledge on general equipment and specific equipment Concept of calibration and performance checks Use of balance Use of ph meter Use of volumetric glassware Use of furnace and oven Use of autopipette Temperature measuring devices, thermohygrograph Daily check requirements of above equipment 24

25 Appendix 1 - CTT Which of the following chemical(s) can be used as drying agent for ether extraction? (I) Sodium chloride (II) Magnesium sulphate (III) Sodium sulphate (IV) Cobalt chloride (A) (I) and (II) (B) (I) and (III) (C) (II) and (III) (D) (III) and (IV) 25

26 Appendix 1 - CTT Find the abnormality/abnormalities of the following statements and suggest a method to correct it. A certain amount of water remains in a graduated pipette. A technician places the pipette in a 90 o C oven to dry it. 26

27 END OF SESSION Thank you 27

28 Examination (CTP) Part A (50%) ISO/IEC quality control (10%) Ethics (5%) Safety (5%) Management (10%) Measurement Uncertainty (10%) Method validation/ verification (10%) Part B (50%) Reporting and techniques Equipment 28

29 Examination (CTT) Time = 180 minutes (3 hours) Passing marks >=60/100 Questions: 30 multiple choice questions (4 choices) 1 mark each, Wrong answer for MC questions, deduce ½ of the mark i.e short questions 5 mark each 2-3 long questions 2 x10 marks 1 x 20 marks 29

30 Examination (CTT) Part A MC 1@ SQ 5@ LQ (10-20) Sub-total (marks) 17025/quality Ethics 5 5 Safety 5 5 Management 1 x Uncertainty Validation 2 10 Part B Sub-total 50 (>=20) Technical x Subtotal 50 (>=20) Total (>=60) 30

31 Appendix 2 CTP Management requirements Management skills Manager s Basic Functions Time Management Communication in Your Workplace Team Building Basic understanding of concepts Delegation and Management of Generation Y 31

32 Appendix 2 CTP You heard a loud noise and realize that one of your staff is pointing her finger at another staff. They were blaming each other for over looking a client s request for a particular lab test, as a result the client file a complaint to Customer service department. The female staff is the supervisor and she complains that the other staff never read the request carefully, and is not the first time he overlooked the client s request. What will you do and what will be your concerns? What will be the worst case scenario for this situation? What will be your best case scenario in this case? 32

33 Appendix 2 CTP Laboratory Management (Detailed Knowledge in the following aspects) Document control Review of contract Subcontracting Verification of critical consumables e.g. Reagent water, SPE, Acid used for digestion Difference between correction and corrective actions and control of non-conforming work Preventive actions 33

34 Appendix 2 CTP Technical records test result, standard preparation Laboratory layout in segregation of activities and prevention of contamination Traceability (acceptable reference materials) Traceability (equipment) Verification of in-house reference materials Sample identification and integrity within laboratory Quality assurance procedures and plan 34

35 Appendix 2 CTP Define corrective and preventive actions and illustrate their difference with an example. 35

36 Appendix 2 CTP Quality control In-process control and their functions Reagent blank Method blank Duplicate Laboratory control sample Spike Statistical treatments of data and quality control requirement (detailed knowledge) Basic statistics such as student-t, pair-t, F test, normal distribution Establishment of control limit and precision criterion Construction of control chart and identification of out of control cases 36

37 Appendix 2 CTP What is the function of laboratory control sample and how to establish a control chart? 37

38 Appendix 2 CTP Laboratory safety (knowledge) General laboratory safety Safety Symbol of chemicals Incompatible chemicals Handling, transport and storage of chemicals Chemical spillage Use of fire extinguisher caused by chemicals Handling and storage of waste, waste disposal Use of fume hood Licensed chemicals and equipment Material Safety data sheet 38

39 Appendix 2 CTP Laboratory safety (knowledge) Guidebooks from Labour Department of HKSAR A brief guide to first aid A brief guide to the Occupational Safety and Health Ordinance A brief guide to the Occupational Safety and Health Regulation Code of practice on safety management Guidelines for good occupational hygiene practice in a workplace 39

40 Appendix 2 CTP Which condition below is considered as proper segregation for incompatible chemical in storage. (a) Class 3 dangerous goods (Flammability liquid) shall not be stored with dangerous goods of any other Class in the same chemical storage cabinet. (b) Class 5.1 dangerous goods (oxidizing substances) shall be kept in a suitable refrigerated storage. Package containing inorganic cyanides shall not be stored with acids. (d) Acid and Alkalis stored in same chemical storage cabinet in the manner that no reaction between them. 40

41 Appendix 2 CTP (A) (a), (b) and (c) (B) (a), (c) and (d) (D) (b), (c) and (d) (E) All 41

42 Appendix 2 (CTP) Prevention of Bribery Ordinance, Cap. 201 Corruption Advantages Improper influence Confidentiality and proprietary right CSTP01 Regulations Certification Scheme of Testing Personnel Code of ethics in general Code of ethics in relation to employer Code of ethics in relation to public Obligation of Certified Testing Personnel Use of Certification symbol and claim of certification status 42

43 Appendix 1 - CTT According to the Prevention of Bribery Ordinance, name 2 things that are considered as advantages. 43

44 Appendix 2 CTP Estimation of Measurement Uncertainty Approaches : EURACHEM, VAM Factors affecting uncertainty Recovery/bias Precision (repeatability and intermediate precision) Standard solution End of measurement Approaches Top down, bottom up and collaborative study Common problems Reporting of uncertainty and compliance Quality control and uncertainty 44

45 Appendix 2 CTP Define imperfect recovery? How to check a recovery is imperfect (write down the equation)? What should be done for evaluation of uncertainty if recovery is imperfect? 45

46 Appendix 2 CTP Method verification and validation Difference between verification and validation Method performance characteristics for qualitative and quantitative tests Definitions and method for determination of the characteristics such as linearity, limit of detection/method detection limit, limit of quantitation/practical quantitation limit International guidelines for setting criteria of such characteristics Procedures for method verification/validation Validation report Drafting of test procedures 46

47 Appendix 2 CTP Define limit of detection or method detection limit and briefly how to evalute such limit. 47

48 Appendix 2 CTP Requirements of the following general equipment calibration: Balance ph meter Volumetric glassware Furnace and oven Autopipette Temperature measuring devices, thermohygrograph Daily check requirements of above equipment Ultraviolet and visible and colorimetric Flow injection analyzer 48

49 Appendix 2 CTP Basic laboratory techniques and principles S.I. units and their use Cleansing of labware Special sample handling techniques ph and buffer solutions Gravimetric methods Volumetric analysis Preparation of standard solutions Titration 49

50 Appendix 2 CTP Basic laboratory techniques and principles Filtration and precipitation Digestion methods Microwave, dry ash by muffle furnace and wet digestion/hot block digestor Extraction methods Solvent extraction, reflux/soxhlet extraction 50

51 Appendix 2 CTP Elemental sub-category Instrumental techniques (scope, limitations, principles, applications, maintenance and trouble shooting) Flame photometer Atomic absorption spectrometry/graphite atomic absorption spectrometry Inductive couple plasma atomic emission spectrometry Inductive couple plasma mass spectrometry X-ray fluorescence 51

52 Appendix 2 CTP a) What kind(s) of interference occur in ICP-MS operations? Please explain the occurrence of them b) Please give 1 example to each type of interference. Any corresponding solution may counter for the interference? 52

53 Appendix 2 CTP Organic sub-category Extraction and cleanup method (scope, limitations and principles) SPME, QuChers, GPC, etc. Instrumental techniques (scope, limitations, principles, applications, maintenance and trouble shooting) GC- different detectors (FID, ECD, FPD, MSD) LC- different detectors (RI, FLD, DAD, MSD, MSMS) 53

54 Appendix 2 CTP State the possible choices of inlet available and the difference between them. 54

55 END OF SESSION Thank you 55