MOSH Noise Adoption Team ASPASA Meeting 18 July

MOSH Noise Adoption Team ASPASA Meeting 18 July 2017 INDUSTRY BUY AND MAINTAIN QUIET INITIATIVE UPDATE PAGE

Contents 1. IBMQI Overview 2. IBMQI Activities Roadmap 3. Noise Measurement and Reporting 4. Noise Reduction of Equipment 5. Equipment Noise Screening 6. Conclusions NOISE Adoption Team 03 December 2020 PAGE 2

IBMQI OVERVIEW NOISE Adoption Team 03 December 2020 PAGE 3

IBMQI Introduction Purpose To provide the Mining Industry Leaders with a consolidated industry-wide strategy for an Industrywide Buy and Maintain Quiet Initiative (IBMQI) as well as a practical path-forward to execute the strategy Manage Noise at Source - “Critical Control” • • • Noise is an Engineering problem Noise source measurements, after-effect analysis etc. – Occupational Health domain Its cheaper to manage noise @ source What is it? A standing decision from mining companies to procure equipment and maintain existing equipment that comply with specific noise emission requirements NOISE Adoption Team 03 December 2020 PAGE 4

IBMQI Sub-working Groups Measurements and Standards • • • Noise Measurement Methodology Guideline Compiling a noise source inventory Independent certification and verification guidelines (both for new and old machines) Research Consolidation • IBMQI Industry-wide Buy and Maintain Quiet Initiative • 3 Sub Working Groups • Review previous and current research and inform future research Interview the technology experts Procurement • • NOISE Adoption Team 03 December 2020 Prioritization of critical equipment; and Review critical equipment and identify the noise reduction-target setting PAGE 5

IBMQI Road Map 2016 Establishment of the IBMQI Working Group 1 2 Solicit Leadership buy-in for the IBMQI 3 Procurement/ supply chain buying process flow 4 NOISE Adoption Team • Implementing the initiative • Engineers and Occupational Health • Task Specific Working Groups Establishment of a comprehensive noise database Equipment Noise Level Target Setting & Engaging 5 OEMs 03 December 2020 PAGE 6

IBMQI ACTIVITIES ROADMAP NOISE Adoption Team 03 December 2020 PAGE 7

IBMQI Activities Roadmap 1 2 3 4 5 NOISE Adoption Team 03 December 2020 6 PAGE 8

IBMQI Activities Roadmap 1 Guidance Note For Noise Measurement of Equipment to Ensure Compliance to MHSC Milestones Approved and Published 2 Day of Learning Presented at MOHAC 3 4 Facilitation of Widespread Implementation through Miniworkshops 5 NOISE Adoption Team 03 December 2020 6 PAGE 9

IBMQI Activities Roadmap 1 Guidance Note For Noise Measurement of Equipment to Ensure Compliance to MHSC Milestones 2 Solicit Leadership Buy-in for IBMQI 3 CEO Zero Harm Task Team Regional Tripartite Forums Conferences & Symposiums 4 5 NOISE Adoption Team 03 December 2020 6 PAGE 10

IBMQI Activities Roadmap 1 Guidance Note For Noise Measurement of Equipment to Ensure Compliance to MHSC Milestones 2 Solicit Leadership Buy-in for IBMQI 3 Developed Procurement Frameworks Industry Procurement Policies Reviewed Numerous Factors Considered 4 5 NOISE Adoption Team 03 December 2020 6 PAGE 11

IBMQI Activities Roadmap 1 Guidance Note For Noise Measurement of Equipment to Ensure Compliance to MHSC Milestones 2 Solicit Leadership Buy-in for IBMQI 3 4 Critical Noise Equipment Screening 5 NOISE Adoption Team 03 December 2020 Developed Procurement Frameworks Numerous Factors Considered Tool Distributed to Mines Analysis of Screening Results 6 PAGE 12

IBMQI Activities Roadmap 1 Guidance Note For Noise Measurement of Equipment to Ensure Compliance to MHSC Milestones 2 Solicit Leadership Buy-in for IBMQI 3 Developed Procurement Frameworks Finalise Distribute 4 Critical Noise Equipment Screening Draft IBMQI Booklet (Noise Demystifying) 5 NOISE Adoption Team 03 December 2020 6 PAGE 13

IBMQI Activities Roadmap 1 Guidance Note For Noise Measurement of Equipment to Ensure Compliance to MHSC Milestones 2 Solicit Leadership Buy-in for IBMQI 3 4 Critical Noise Equipment Screening Developed Procurement Frameworks Draft IBMQI Booklet (Noise Demystifying) Draft Report on Noise Research 5 NOISE Adoption Team 03 December 2020 6 PAGE 14

IBMQI Road Map 2017 Establishment of a credible noise repository for the SAMI 1 2 Development of a 3 rd party noise verification guide Equipment Noise Level Target Setting & Engaging OEMs 4 NOISE Adoption Team 3 Compile a comprehensive critical noise equipment inventory Facilitate processes for identification of Leading 5 Practices 03 December 2020 PAGE 15

NOISE MEASUREMENT & REPORTING NOISE Adoption Team 03 December 2020 PAGE 16

Noise Measurement Methodology NOISE Adoption Team 03 December 2020 PAGE 17

Reporting & Recording Results of Noise Measurements IBMQI Measurements and Standards Subcommittee on 04 May 2017 workshopped the reporting of “individual pieces of equipment”: • Step 1: Group equipment type/model into populations based on Activity Area (e. g. S 215 Rockdrills used in Stoping Activity Area as a population). • Step 2: Conduct noise samples on 5% of the equipment population, as per Activity Area (e. g. 5 samples for an equipment population of 100 S 215 Rockdrills per Activity Area). • Step 3: Calculate the Logarithmic Average Noise level, for the equipment population, making use of the Noise Measurement results obtained in Step 2 above. NOISE Adoption Team 03 December 2020 PAGE 18

Reporting & Recording Results of Noise Measurements • Step 4: Report the Logarithmic Average Noise result from Step 3 above for the equipment population for Noise Milestone Tracking purposes and not according to individual measurement results This Logarithmic Average result of the noise measurements for the population of equipment measured will be used for the reporting of Noise Milestone tracking. This individual piece of equipment within the equipment population should be investigated and not reported as an individual piece of equipment exceeding 107 d. B(A). Note: Should the Logarithmic Average Noise result for the equipment population be greater or equal to 107 d. B(A), then the entire S 215 Rockdrill population used in the Stoping Activity Area is reported as equipment greater or equal to 107 d. B(A) • Step 5: Investigate any individual noise measurement recorded for the sampled equipment population which was equal to or above the Milestone sound pressure limit of 107 d. B(A). NOISE Adoption Team 03 December 2020 PAGE 19

NOISE REDUCTION OF EQUIPMENT NOISE Adoption Team 03 December 2020 PAGE 20

Noise Reduction Process Identify High Noise Emission Machinery Measure Noise Apply Screening Process measure List Critical Machines review identify Identify Development Areas per Machine Certification of new design action Test New Developments prioritize Staircase of OEM Development (MEMSA & Modernisation) Set Industry Target for Improvement ü Screening process should now highlight ‘Critical Equipment’ ü Discussions can now be had between Engineer / Health Practitioner / Commodity Expert and the OEM ü Identifying an improvement programme for respective equipment ü Target setting and a staircase to develop and/or improve product ü Testing and Certification of new developments NOISE Adoption Team 03 December 2020 PAGE 21

Progress OEM Interaction Ø Mining Equipment Manufacturers of South Africa (MEMSA): • Introduce the IBMQI to the office bearers. • Align the MEMSA members with the IBMQI Process. Screening of Critical Noise Equipment Ø Analysis of Equipment Noise Screening results: NOISE Adoption Team • 8 Mining Companies submitted Screening results • Screening Parameters: o Noise Level o Number of persons exposed o Number of machines at work environment o Duration of exposure o Confined space o Machine vibration o Wear parameters o Previous improvement ideas o Effective hearing protection • 90 Equipment Categories Screened • Top 10 Critical Noise Equipment identified per Commodity 03 December 2020 PAGE 22

EQUIPMENT NOISE SCREENING NOISE Adoption Team 03 December 2020 PAGE 23

Equipment Noise Screening Tool NOISE Adoption Team 03 December 2020 PAGE 24

Equipment Noise Screening Tool (Continued) NOISE Adoption Team 03 December 2020 PAGE 25

Equipment Noise Screening Outcomes Number of Equipment Screened per Category Coal Comodity Number of Equipment Screened Per Category 1 1 1 2 2 1 5 2 2 3 9 Boilermaking Screens Centrifuges Drilling Machines Fans TMM Crushers pumps Conveyors Shuttle Cars Continuous Miners Roof Bolters Pneumatic Drills NOISE Adoption Team 03 December 2020 PAGE 26

Prioritisation of Critical Noise Equipment Coal Comodity Equipment Noise Screening 95 th Percentile Risk Ranking 10 9 8 7 6 5 4 3 2 1 ril ls D at ic Pn eu m oo R uo tin on f. B M us ut tle Sh C D ol te rs s in ar C yo ve on C er s rs ps pu m s sh ru C M ril lin g C er M ns TM in ac h Fa es s fu ge en tri re Sc Bo ile rm ak in g en s 0 NOISE Adoption Team 03 December 2020 PAGE 27

Top 10 Critical Noise Equipment Coal Comodity Equipment Noise Screening 95 th Percentile Risk Ranking Facilitate Adoption of Noise Measurement Methodology 10 9 8 7 6 5 4 3 2 1 0 Boilermaking NOISE Adoption Team Screens Centrifuges Drilling Machines 03 December 2020 Fans TMM Crushers pumps Conveyors Shuttle Cars PAGE 28

NOISE Adoption Team 03 December 2020 95 th al ic rit C ile en t rc Pe t. R en g k is ng an ge an ki R R n io ot ec t ns io nc e na br at io n e Sp ac So lu t Pr & en cy eq u Fr pm ui Eq al ic rit C rin ea H Vi or k ai nt e M en ts em pr ov m t. I en m ui p Eq W ur e os xp s in e ac h M s on Pe rs of E of of in e ac h M ed fin on C e m Ti o. N o. en t re m ea su M N A d. B Developmental Target Setting Screens 9 8 7 6 5 4 3 2 1 0 PAGE 29

Equipment Screening Tool Evaluation Challenges Ø Limitations of the Screening process: Ø 2015 Noise repository used Ø Limited Access to Mining Companies Noise Repositories Ø Correct understanding and use of the screening tool Ø No Standardised Naming of Equipment Ø Multi-disciplinary input required NOISE Adoption Team 03 December 2020 PAGE 30

CONCLUSION NOISE Adoption Team 03 December 2020 PAGE 31

Conclusions ü We can measure NOISE consistently across the mining industry – Understanding the Risk ü Value of the Screening Tool: • Lead us to an industry (commodity) specific requirement (Best Achievable Requirement) • Risk based approach • Identification and information on our problematic equipment • Avoid ‘Blanket’ approach on noise management initiatives - Prioritization • Unlock “cheap” Innovation • Assist in maintenance plans – prioritization of critical Noise equipment NOISE Adoption Team 03 December 2020 PAGE 32

THANK YOU www. mosh. co. za/noise/summary NOISE Adoption Team 03 December 2020 PAGE 33