THE NEW ZEALAND SOCIETY FOR

SAFETY ENGINEERING



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  • 2021-09-21 10:14 | Daniel Muller (Administrator)

    Here is our newsletter for September 2021 (Thanks for your work Warren Wagener.)

    Please click on this hyperlink: NZSSE Newsletter - Sept 2021.pdf

  • 2021-07-05 12:29 | Daniel Muller (Administrator)

    The online webinar videos are accessible to members after logging in to the NZSSE website. The latest video that has been made available is the presentation by Gabriella Solti on "As far as is reasonably practicable" delivered in June.

     

  • 2021-05-17 21:37 | Daniel Muller (Administrator)

    Date: 29 June 2021 Time: 13:00 - 17:00 UK time
    Date: 30 June 2021 Time: 13:00 - 17:10 UK time

    What’s this conference about?

    This is a wide-ranging free online event held over two consecutive afternoons during which invited healthcare subject experts, regulators, medical device manufacturers and standards-makers share their knowledge, insights and perspectives on the key issues affecting the medical device sector now and in the next couple of years. This year’s conference will continue our emphasis on regulatory compliance and patient safety and will also reflect on COVID-19’s impact on the future of healthcare technology.

    Who should attend the webinar?

    Healthcare and medical device manufacturers, specifically:

    • CEOs
    • Regulatory affairs
    • Quality affairs
    • Designers
    • Engineers
    • Compliance officers

    What will participants gain?

    • Insights into the digital transformation of healthcare in the wake of COVID-19
    • Advice on how to prepare for the EU IVD medical devices regulations
    • Authoritative information on the introduction of the UKCA mark in May 2023
    • An analysis of QMS in safety-critical industries in the light of the Ventilator Challenge
    • Perspectives on the impact that sustainability will have on healthcare delivery and technology
    • First sight of the standards that will support post-Brexit regulatory compliance
    • An update on the issues affecting regulation and compliance in the US


    Please click here to view the agenda.

    To develop your personal knowledge and understanding of the key topics currently shaping this dynamic market, please book your place at the webinar now.

    The presentation on 29 June from 15:20 - 16:05 will certainly be interesting.

    QMS in safety-critical industries – learning from the COVID Ventilator Challenge - Eamonn Hoxey, Technical writing, training and consulting - quality & regulatory compliance, sterility assurance, standards development and Director, EV Hoxey Ltd, Teresa Perry, Global Assessment Delivery Director - Regulatory Services, British Standards Institution (BSI)

    Register for the conference >

    Register for the conference >


  • 2021-05-03 09:41 | Anonymous

    Successful implementation of Health and Safety (H&S) systems requires an effective mechanism to assess risk. Existing methods focus primarily on measuring the safety aspect. The health component, i.e., chronic harm, is more difficult to assess. Partly this is due to both consequences and the likelihood being indeterminate. There is a need for better representation for chronic health issues. This paper shows how this may be achieved.

    Download the paper: https://doi.org/10.3390/ijerph18094849

    The idea was developed at the University of Canterbury by Dr Zuzhen (Sean) Ji, Dr Dirk Pons (CPEng, FEngNZ), and Dr John Pearse. 

    'We approached this from a different direction, by adopting a public health perspective of quality of life from the World Health Organisation (WHO) disability index (WHODAS). The WHODAS is a simple questionnaire that gets people to rate how their future quality of life, e.g. in retirement, might be adversely affected by hearing loss and other chronic conditions.

    'We have then changed the risk assessment process to accommodate this, by creating two consequence scales. One is for safety (e.g. immediate accident outcomes), and the other is for health (e.g. chronic or future harm outcomes). We harmonised the scales, hence that word in the title. As a result, the new risk assessment can accommodate both types of occupational harm.

    'A visual summary follows. Note the two scales below for consequence. You will note that the consequence values range from [2...500] - this is key. Also we found inconsistencies in the commonly used likelihood scale, and now propose that [0.1, 1, 2, 4, 6, 10] is better. 

    [ https://www.mdpi.com/ijerph/ijerph-18-04849/article_deploy/html/images/ijerph-18-04849-g007-550.jp

    Figure: Risk matrix for combined safety and accident scales.

    'We also address the question of RISK APPETITE, which is the organisational response to hazards. In practical terms, these are represented by the colours [green, yellow, red, purple, grey] in the risk matrix. We propose a specific allocation as shown above. We recommend that consistent scales and colours be used within any one organisation. This is necessary so that risks can be compared.

    'We also recommend the following organisational actions for the risk appetite colours.

    DQL score

    (C x L)

    Severity of harm (Color in risk matrix, see Figure 8)

    Description of treatment

    Actions

    Authority for continued operation

    Reporting

    DQL> 1000

    Grey

    Cessation.

    Immediate intermission must be undertaken. Ensure preventions and recoveries are adequate and can manage the risk in the future operations.

    Board members

    CEO must report and advise solutions to Board members under urgency.

    120 < DQL < 1000

    Purple

    Unacceptable risk.

    Cease operations immediately until risk has been minimized. Ensure preventions and recoveries are sufficient and it is possible to manage the risk in the future operations.

    Board, and CEO

    CEO need to report and advice solutions to Board as soon as practicable.

    60 <

     DQL

    < 120

    Red

    Urgent treatment.

    Urgent treatment required. Operations proceed with caution and ongoing monitoring of risk

    Technical manager

    Technical manager to advise CEO as soon as possible, and report regularly on status of the risk and its treatment.

    10 <

    DQL

    < 60

    Yellow

    Consider treatment.

    Implement treatment in a reasonable time period. Continue the operations with caution. Monitor the risk in case it becomes worse.

    Team leader

    Team leader to report regularly to Technical manager on the risk and the progress of the treatment plan.

    0 <

    DQL

    < 10

    Green

    Not necessary to have special treatment.

    No special treatment required. Continue the operations with ongoing monitoring of the efficacy of existing preventions.

    Operators

    Staff to report regularly to Team leader on the state of this risk.

     

    'When we applied this new method to a case study (bakery operations),  merely including the chronic harm scale appeared to be sufficient to elicit a more detailed consideration of hazards for chronic harm. This suggests that people are not insensitive to chronic harm hazards, but benefit from having a framework in which to communicate them.'

    What has been achieved? The result is a comprehensive risk assessment method with consideration of safety accidents and chronic health issues. This has the potential to benefit industry by making chronic harm more visible and hence more preventable.

    Implications for practitioners: Practitioners will be familiar with hearing loss and other long-term health outcomes of their place of work. In applying the method proposed here, practitioners are recommended to give regard to any widely accepted thresholds and heuristics for safe levels and durations for the various occupational hazards. This type of information is commonly available from the national H&S regulator or safety institutions.

    Download the paper: https://doi.org/10.3390/ijerph18094849

    The paper is *open access* which means it is free to download, copy, use, and adapt.

    This  paper has been made open access by funding provided by the University of Canterbury, in the interests of disseminating research findings into our communities. 


  • 2021-02-12 15:13 | Daniel Muller (Administrator)

    Farmers are being advised to buckle up after an analysis of vehicle-related fatalities found that nearly half those that occur on farms could have been avoided if a seatbelt was being used.

    The data revealed that not wearing seatbelts while on the job was the largest single factor contributing to fatal work-related incidents.

    The analysis coincides with the launch of a new side-by-side vehicle simulator which will spend the next six months travelling New Zealand’s agricultural Fieldays and featuring in the FMG Young Farmer of the Year competition.

    Read the full media release here:  WORKSAFE MEDIA RELEASE

  • 2021-02-10 17:35 | Daniel Muller (Administrator)

    The video of the Recontextualising Safety in Design that was presenteted by Russell McMullan from the City Rail Link is now available to members.

    To access it, please log in to this website and look under MEMBERS where the member-only content is hosted.  Look under VIDEOS

  • 2021-01-15 15:31 | Daniel Muller (Administrator)

    Stuart Wright, our Ex-Officio committee member from Worksafe sent a message this morning to alert us to new content on the WORKSAFE website:

    Keeping workers safe with machine lockouts 

    "This guidance advises small to medium PCBUs how to use lockouts to safely isolate and de-energise the parts of machinery that could cause harm to workers when servicing this machinery."

    To see their guidance follow this link:  Keeping workers safe with machine lockouts.

    We welcome the effort by WORKSAFE to provide guidance, however we would like to remind everyone that lockout procedures are administrative controls, and they rely heavily on people adhering to procedures. We know sometimes they don't; The NZSSE therefore recommends, where at all possible, engineering controls or controls higher up on the Hierarchy of Control to reduce the risk further . (Higher up on the Hierarchy of Controls are typically more reliable.)

  • 2020-09-14 07:50 | Anonymous

    With the upcoming Webinar to be hosted the following is some really good background information about the DHR process.

    https://worksafe.govt.nz/about-us/news-and-media/dont-be-scared-of-worksafe/


  • 2020-08-13 08:33 | Anonymous

    Newsletter August 2020


    Greetings NZSSE members!

    I hope that the pandemic, lockdown, and current increase in the alert levels have not been too difficult for you and your families, and that you all still have enough work to keep you busy. If you're anything like me, you'll be looking forward to the end of 2020, it's been quite the annus horribilis. Remember a few months ago when Australia was on fire and NZ was covered in a pall of smoke, and that seemed like it was as bad as things could get?

    On the plus side, we've been lucky enough to live in a small country with closable borders, with a population that by and large acted responsibly in response to government guidance. There's a bit of a hiccup right at the moment, but things could be a lot worse. For those of you with family overseas, I hope they're able to keep safe. 

    Personally, I've found the response to Covid-19 across NZ to be a pretty good example of how we as a country approach health and safety. Overall the country applied a "hierarchy of controls" approach, starting with eliminating hazards (by keeping people at home and separated), moving through isolating hazards (the ubiquitous perspex screens at supermarket checkouts) and further on down to procedural controls (like hand sanitiser at the entrance to a business).

    And, as always, there were PCBUs that started at the bottom of the hierarchy and called it done - put some hand sanitiser at the door and say "she'll be right." And so our mission to promote robust health and safety practices continues!

    The last few months have been fairly quiet for the NZSSE - I'll put my hand up and say that was my fault, I've been somewhat preoccupied. Things are moving forward again now, as we kick off a series of webinars to give us all some good professional development opportunities through to the end of the year.

    In this newsletter you'll find details of a case study being delivered by Dirk Pons, on an aviation incident, which I am very much looking forward to. In the next week or so, look out for details from us of the next few installments of the series, covering topics ranging from H&S by Design, enforceable undertakings, duty holder reviews by Worksafe, Safety I vs. Safety II, updates to the H&S regulations currently working their way through MBIE, occupational health considerations in design, and more.

    If any of you are sitting on a good story, a good case study, or a subject dear to your heart, and would like to present a webinar to the rest of the members, please let me know. The more the merrier, the committee would like to make this the start of an ongoing and continuous series of events.

    See you all at Dirk's seminar.

    Joe

    The Pitfalls with Self Certified CE marking – Warren Wagener TEG Risk

    We recently investigated a three year old machine, manufactured in Italy which according to the manufacturers manual is CE marked and compliant with the Machinery Directive, Low Voltage Directive and the EMC Directive.

    This style of machine has a Type C Standard that lists the hazards and safety control measures to allow for safe operation. The standard has been available since 1998.

    Upon assessment of the machine it became quite evident that the Type C standard had not been followed. We approached the manufacturer for comment regarding this. They provided a statement that basically said that they did not apply the Type C standard to their machine. The basis for this statement was that the style of operation of the machine differed enough from the machines listed in the standard and this allowed them to perform a risk assessment and apply control measure that do not align with the Type C standard.

    The machine has a rotating drum with scraping blades attached, weighing 1.5 tonne and spinning at a speed of at a guess around 1500rpm used to scrape excess material from the primary material. Under the Type C standard the control measure was to provide a synchronised guard that covers the drum while the machine is open for product infeed. This guard was not fitted and the control measures were inadequate (non interlocked and non fixed, removable rubber guard fitted by manufacturer). The client has had an incident in the infeed area that fortunately only resulted in deep cuts to a finger and concluded that a lack of guarding was the root cause of the injury.

    We requested further information from the technical file of the manufacturer, specifically around the reasoning and risk assessment processes.

    The documentation we were provided with reinforced our initial conclusions that the machine needed to be treated under the Type C Standard. This was supported by the diagrams given in the documents of the machine they had used as the ‘template’ to support their conclusions around risk assessments and hence control measures. The diagrams do not match the machine they have supplied!

    Further to this the Type C standard had a required Performance Level of PLd indicating risks in the infeed areas are deemed to be high. This did not align with the manufacturers risk assessment where they scored the initial risk as medium and applied limited control measures to make the residual risk assessed as low.

    Where does that leave the client?

    It leaves the client with a dangerous machine that requires an extensive upgrade.

    Can they take the manufacturer to task?

    Yes but it will be a lengthy and costly exercise, requiring representation in Europe either on behalf or in person and chances of success may be low. As of 5 years ago no countries that were external to the EU have had a successful challenge under the machinery directive.

    Conclusions:

    Reliance upon the CE marking as being an adequate means to prove compliance provides limited coverage with the requirements under the HSWA act.

    Due diligence is required when importing/purchasing machines from the EU with a CE marking and even more so with items not originating from the EU. Risk assessments and adequate risk reduction controls are required for compliance with HSWA. 

    CE Marking is not a ’free pass’ for the manufacturer to export outside of the EU even when the machine is mostly compliant.


    Recent Worksafe Prosecutions.

    ·         A pet food manufacturer in Te Puke has been fined $132,000 after one of its workers suffered burns so serious she had to have the tips of three of her fingers amputated.

    Addiction Food NZ Limited appeared in the Tauranga District Court on Wednesday after a WorkSafe investigation found the machine the company used to pack pet food with was not properly guarded.

    ·         WorkSafe has filed charges following an investigation into a gas explosion in a house on Marble Court, Northwood, Christchurch in July last year.

    Charges have been filed under the Gas Act 1992 against two defendants following the incident in which a gas explosion caused serious harm to several individuals, destroyed a house and caused significant damage to several other properties in the neighbourhood. 

    ·         Failures at a meat processing plant led to a worker suffering severe burns to almost his entire body, says WorkSafe.

    Affco New Zealand Limited were fined $230,000 and ordered to pay $65,000 for failing to keep the worker safe at its Moerewa plant.

    In July 2018 the worker was tending to the furnace of a boiler. The worker opened the boiler door and a build-up of coal combusted and sent heat and flames out and into the room.

    ·         A Wellington business which continued to operate unguarded machinery resulting in serious hand injuries to a worker has been fined $260,000.

    In a Judge’s decision released last week, food manufacturer Oriental Cuisine Limited was ordered to pay reparation of more than $40,000 after a worker’s hand was drawn into a machine used to make pastry in July 2018.The worker suffered fractures and the complete degloving of his middle and index finger on his left hand. He also received lacerations injuries to his thumb and ring fingers.

    Insights into how we work

    Every safety engineer knows that seemingly small mistakes or temporary lapses in judgment can have serious consequences.

    Young professionals can be especially prone to error because we lack industrial experience, yet want to prove ourselves professionally. Many of us enter the workplace with a sense of infallibility, secure that our college education has endowed us with the ability to think quickly and rationally, and jump into any team, plant, or project. Eventually we learn that maintaining a sense of vulnerability is key to avoiding process safety incidents.

    For some of us, the opposite is true — we believe that, as rookies, we don’t have the prerogative to speak up if we feel that something is unsafe. Overcoming our fear of confrontation and learning how to identify and speak up about unsafe practices or conditions will not only make us better engineers, it may save lives.

    Find yourself a mentor and take advantage of their experience to enhance your own.

    COVID-19 has also altered the way some of us work with more engineers working remotely and from home. The upside of this is that a lot of businesses are becoming more comfortable with virtual meetings and social distancing techniques. The downside is a lack of social contact.

    If you find yourself wandering from your chosen path and require a reset, do not hesitate to reach out to one of your fellow members.

    We are very fortunate to be one of the few countries currently running as near to normal as we can be. Be proud of what NZ has achieved as a country to put ourselves in this position. Make the most of the opportunities presented by the changes that some of us are experiencing. Learn from the lessons that working under COVID has taught us.

    Robots and COVID-19

    Article referenced from https://today.tamu.edu/2020/04/22/robots-are-playing-many-roles-in-the-coronavirus-crisis-and-offering-lessons-for-future-disasters/

    Roboticists at Texas A&M University and the Center for Robot-Assisted Search and Rescue examined over 120 press and social media reports from China, the U.S. and 19 other countries about how robots are being used during the COVID-19 pandemic. They found that ground and aerial robots are playing a notable role in almost every aspect of managing the crisis.

    In hospitals, doctors and nursesfamily members and even receptionists are using robots to interact in real time with patients from a safe distance. Specialized robots are disinfecting rooms and delivering meals or prescriptions, handling the hidden extra work associated with a surge in patients. Delivery robots are transporting infectious samples to laboratories for testing.

    Outside of hospitals, public works and public safety departments are using robots to spray disinfectant throughout public spaces. Drones are providing thermal imagery to help identify infected citizens and enforce quarantines and social distancing restrictions. Robots are even rolling through crowds, broadcasting public service messages about the virus and social distancing.

    At work and home, robots are assisting in surprising ways. Realtors are teleoperating robots to show properties from the safety of their own homes. Workers building a new hospital in China were able work through the night because drones carried lighting. In Japan, students used robots to walk the stage for graduation, and in Cyprus, a person used a drone to walk his dog without violating stay-at-home restrictions.

    Helping workers, not replacing them

    Every disaster is different, but the experience of using robots for the COVID-19 pandemic presents an opportunity to finally learn three lessons documented over the past 20 years. One important lesson is that during a disaster robots do not replace people. They either perform tasks that a person could not do or do safely, or take on tasks that free up responders to handle the increased workload.

    The majority of robots being used in hospitals treating COVID-19 patients have not replaced health care professionals. These robots are teleoperated, enabling the health care workers to apply their expertise and compassion to sick and isolated patients remotely.

    A small number of robots are autonomous, such as the popular UVD decontamination robots and meal and prescription carts. But the reports indicate that the robots are not displacing workers. Instead, the robots are helping the existing hospital staff cope with the surge in infectious patients. The decontamination robots disinfect better and faster than human cleaners, while the carts reduce the amount of time and personal protective equipment nurses and aides must spend on ancillary tasks.

    Don’t stockpile robots

    The broad use of robots for COVID-19 is a strong indication that the health care system needed more robots, just like it needed more of everyday items such as personal protective equipment and ventilators. But while storing caches of hospital supplies makes sense, storing a cache of specialized robots for use in a future emergency does not.

    This was the strategy of the nuclear power industry, and it failed during the Fukushima Daiichi nuclear accident. The robots stored by the Japanese Atomic Energy Agency for an emergency were outdated, and the operators were rusty or no longer employed. Instead, the Tokyo Electric Power Company lost valuable time acquiring and deploying commercial off-the-shelf bomb squad robots, which were in routine use throughout the world. While the commercial robots were not perfect for dealing with a radiological emergency, they were good enough and cheap enough for dozens of robots to be used throughout the facility.


    Webinar

    Yak vs Cherry Picker

    This presentation is about the human factors involved in an aviation accident in NZ between a Yak and a cherry picker.

    I will identify the typical types of human error, contextualise these to the accident, and illustrate how such accidents can be represented in the barrier bowtie method.

    Human factors are the things that go wrong in the interactions between a team of people and a system of technology. This is part of a broader transdisciplinary field called engineering psychology, which as the name suggests, draws from both engineering and psychology.  Many, if not most, catastrophic accidents involve a socio-technical interaction, i.e. are not solely due to technology failure. Hence there is a need to consider human factors in the development or deployment of any technical system.

    The content of the presentation is primarily directed to industry practitioners interested in better health and safety outcomes, e.g. in plant operations or construction management. Those involved in event management may also find the content useful for their work. Prospective postgraduate students may also find inspiration for future research topics. The content is suitable for a general audience and does not require any deep understanding of engineering, psychology, aviation, yaks, or cherries.

    https://canterbury.zoom.us/j/94724664082?pwd=WFErVzEzRWtWVnBlcmV3U2o5Qkk2QT09

    Date Friday, 21 August 2020 12:00 PM-1:00 PM

    Zoom Meeting ID: 947 2466 4082
    Passcode: BOWTIE

    Regards - Ngā mihi

    Dirk

    Dr Dirk Pons

    PhD (Eng), MScMedicine, M.Leadership, BScEng(Mech), Fellow Engineering NZ (IPENZ), Tohunga Wetepanga, Chrtrd. Prof. Eng (CPEng, NZ), International Professional Engineer (Int. PE. EngNZ)

    Associate Professor in Mechanical Engineering

    University of Canterbury, Private Bag 4800, Christchurch 8020, New Zealand


  • 2020-04-16 23:06 | Daniel Muller (Administrator)

    Today, we had our first meeting of the recently elected NZSSE committee for 2020.

    We have many great ideas, all online events, that will be anounced soon. If you haven't used Zoom yet, try and familiarize yourself with it, We will most probably run all our event on Zoom.

    Look under the ABOUT US tab on this website who are on the committee.

    Please get in touch if you have any great ideas or requests.

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