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RPF Task Group Feedback Lab Accreditation TG Skills Development TG

RPF Task Group Feedback Lab Accreditation TG Skills Development TG. 11/12 May 2005. Background. Task group formed to look at Lab Accreditation Shortfall in accreditation process - lack of a proficiency scheme to ISO 43 Proposal developed for a National Proficiency Scheme

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RPF Task Group Feedback Lab Accreditation TG Skills Development TG

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  1. RPF Task Group FeedbackLab Accreditation TGSkills Development TG 11/12 May 2005

  2. Background • Task group formed to look at Lab Accreditation • Shortfall in accreditation process - lack of a proficiency scheme to ISO 43 • Proposal developed for a National Proficiency Scheme • Stakeholder workshop to discuss proposal (Feb ‘04) • Pilot study (2004/05) • WCPA • Gautrans • Feedback of results (Feb ‘05)

  3. Laboratory Proficiency Workshop – 11 Feb 2004 • Strong industry representation the would act as the coordinating body (NPASR) • All in favour of a national proficiency scheme • Problem with reference labs • Needed to be cost-effective • All accepted a pilot study to be run by Gautrans and Western Cape • 3 tests to be investigated • Atterberg limits • Bitumen penetration • Sieve analysis

  4. Feedback from Pilot Study February 2005

  5. NPASR National Proficiency Assessment Services for Roads Projects for 2004: Particle Size Distribution (gradation)TMH-1 method A1(a) Plasticity Index (Atterberg)TMH-1 method A2TMH-1 method A3 Penetration of 80/100 pen. bitumen.ASTM D5-1997.

  6. NPASR National Proficiency Assessment Services for Roads Service provider: P.A.W.C. PTP 2004 / 001 Response: % Retained on 19,0 mm Assigned value: 15 (%) – Consensus value (expert)Source: Controlled gradation made up. Variability: ± 2,5 (%)Source: Typical (E-values) z-Limit at C.L. 95% : X ± 4,1 (%)2z-Limit at C.L. 95% : X ± 8,2 (%)

  7. NPASR 2z z z 2z National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 001

  8. NPASR National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 001

  9. NPASR National Proficiency Assessment Services for Roads Service provider: P.A.W.C. PTP 2004 / 001 Outlier laboratory: Property: % Retained on 19,0 mm (a) Analysis of variance F-value = 2,315 F-crit = 2,510 Result: Accept H0(b) Tukey q(0.05,df(error)=18,k=9) = 4,96 (Tukey statistic) Result: No significant individual pair differences. (c ) Dunnett q(0.05,df(error)=18,k=9) = 2,94 (Dunnett statistic) Result: No significant difference from control

  10. NPASR 2z z z 2z National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 001

  11. NPASR 2z z z 2z National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 001

  12. NPASR 2z z z 2z National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 002

  13. NPASR 2z z z 2z National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 002

  14. NPASR 2z z z 2z National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 002

  15. NPASR 2z z z 2z National Proficiency Assessment Services for Roads Service provider:P.A.W.C. PTP 2004 / 003

  16. Agreements from the meeting • Gautrans to feedback their results to the participating laboratories • Scheme to be structured in line with ISO 43 (formal process not a round robin process) • Scheme should be coordinated nationally and run regionally • Scheme should be self-supporting and run on a cost-recovery basis. • Initial funding to kick-start the process • Executive Board of potential funders identified to move the process forward

  17. Executive Board • SANRAL K vd Walt/W Weber • WCPA M Henderson • Gautrans C Taljaard • C & CI B Perrie • Sabita P Myburgh • Commercial Labs T Milne • Technical Advisor B Dumas • Coordinator L Sampson

  18. Actions • J Venter (SAACEL regional Chair) to drive process in KZN in association with KZN DoT (K Ducasse) • L Sampson and B Dumas to rework original proposal with costs for establishing the scheme and submit to Ex Co for discussion • Ex Co to be organised before May RPF • All members of (NPASR) to be kept informed of progress by Ex Co • Next three tests • MDD/OMC using Mod AASHTO • Marshall stability and flow for asphalt mixes • ALD for aggregates

  19. Skills Development

  20. Status • National Certificate in the supervision of construction processes in place at NQF level 4 • Learning material being developed • Implications to the industry • National certificate in construction materials manufacturing (NQF 2 – 6) • under development • National certificate in Materials Testing under development (NQF 2 – 7) • On hold pending a new workshop to rethink the qualification structure

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