[PSES] Seeking volunteers to join the IEEE PSES RATC (Risk Assessment Technical Committee)

Greetings fellow members, I am looking for any volunteers to join the IEEE PSES Risk Assessment Technical Committee. It would only take a few hours of your valuable time out of every month at most. One of the main functions of this Technical Committee is to promote activities in our field

Re: [PSES] Risk assessment versus HBSE

AM *To:* Richard Nute *Cc:* EMC-PSTC@LISTSERV.IEEE.ORG *Subject:* Re: [PSES] Risk assessment versus HBSE Hi Rich, Your points are well taken. There are some good ISO standards that relate to exposure to hot and cold temperatures. These standards take the type

Re: [PSES] Risk assessment versus HBSE

Access=true > > > > Best regards, > > Rich > > > > > > *From:* Douglas Nix > *Sent:* Wednesday, February 23, 2022 8:57 AM > *To:* Richard Nute > *Cc:* EMC-PSTC@LISTSERV.IEEE.ORG > *Subject:* Re: [PSES] Risk assessment versus HBSE > > > > Hi Rich, > &

Re: [PSES] Risk assessment versus HBSE

Hi Doug: See: https://www.tandfonline.com/doi/pdf/10.1080/01446193.2016.1274418?needAccess=true Best regards, Rich From: Douglas Nix Sent: Wednesday, February 23, 2022 8:57 AM To: Richard Nute Cc: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Risk assessment versus

Re: [PSES] Risk assessment versus HBSE

data or studies regarding impact with children. > > Thanks, > > Mark > > > > > > > Hi Doug: > > > > Thanks for your comments. > > > > What bothers me about risk assessment is that the committees that have > written the standards requirin

Re: [PSES] Risk assessment versus HBSE

about risk assessment is that the committees that have written the standards requiring risk assessment have not critically evaluated the risk assessment process.  If they had done so, we would not have the process as we know it today. Actually, I do not fully agree with the Gibson finding that ener

Re: [PSES] Risk assessment versus HBSE

think that we need both approaches, that is HBSE and “conventional” risk assessment. The issue is always this: what do you do when you don’t have any data? Practitioners must start with what they know, and that usually means starting with qualitative risk assessments. This is especially true

Re: [PSES] Risk assessment versus HBSE

qu...@listserv.ieee.org > <mailto:0bb8ff993b10-dmarc-requ...@listserv.ieee.org>> wrote: > Hi Rich, > > I have to admit that I’ve been thinking about your reply all weekend. > > As you know, I teach machinery risk assessment and consult in this area > regularly

Re: [PSES] Risk assessment versus HBSE

ain Time (US-MST) On Mon, Feb 14, 2022 at 1:45 PM Douglas Nix < 0bb8ff993b10-dmarc-requ...@listserv.ieee.org> wrote: > Hi Rich, > > I have to admit that I’ve been thinking about your reply all weekend. > > As you know, I teach machinery risk assessment and consult in this

Re: [PSES] Risk assessment versus HBSE

Hi Rich, I have to admit that I’ve been thinking about your reply all weekend. As you know, I teach machinery risk assessment and consult in this area regularly. I want to stipulate that there are some significant issues with risk assessment the way it is most commonly applied in industry, see

Re: [PSES] Risk assessment versus HBSE

Hello Rich I am somewhat alarmed by a paragraph in your email!! In it you indicated that: "When I evaluate a product, I look for the physical energy sources, *and then determine if the energy sources are hazardous or no*t. Unlike Risk Assessment, this is easy and repeatable and not subje

[PSES] Risk assessment versus HBSE

I don’t like the Risk Assessment process because it is highly subjective and not very repeatable. When I was with Hewlett Packard, three of us developed “Hazard Based Safety Engineering,” HBSE. The basis for HBSE was James J. Gibson’s (Cornell University) research into child injury

Re: [PSES] Risk Assessment question

In general I agree with your summary, but there is one point that really sticks badly for me: Use of FMEA/FMECA for risk assessment. In my opinion, this is a fundamental mistake that is often made because the tools have superficial similarity with OHS/machinery/product risk assessment tools

Re: [PSES] Risk Assessment question

d0c-dmarc-requ...@listserv.ieee.org> wrote: > Doug et al, > > > > Risk assessment methodology exploded in the (60s and 70s) > early days of the aerospace program as there were a myriad of new problems > coming out of this bleeding edge t

Re: [PSES] Risk Assessment question

Hi Doug, This isn't what you were asking for, but you might find it interesting. In 2015, Health Canada commissioned a survey of various international regulatory agencies on risk assessment and risk management practices. Report here <https://www.oecd.org/sti/consumer/Report%20on%20Internatio

Re: [PSES] Risk Assessment question

Doug et al, Risk assessment methodology exploded in the (60s and 70s) early days of the aerospace program as there were a myriad of new problems coming out of this bleeding edge technology being implemented. Willie Hammer’s classic training manual covered

Re: [PSES] Risk Assessment question

-4818816 e-mail: sloz...@ieee.org From: Douglas Powell Sent: Wednesday, June 17, 2020 1:49 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Risk Assessment question All, Over the past several years, nearly all safety standards have incorporated Risk Assessment (RA) as a part

Re: [PSES] Risk Assessment question

Thanks, I'll check them out. On Tue, Jun 16, 2020, 8:25 PM MIKE SHERMAN wrote: > Doug -- > Good summary! > Bruce Main of Design Safety Engineering has published a couple of overview > books on risk assessment; you can find them on his web site. If you can't > get the Table of Con

Re: [PSES] Risk Assessment question

Doug -- Good summary! Bruce Main of Design Safety Engineering has published a couple of overview books on risk assessment; you can find them on his web site. If you can't get the Table of Contents somewhere, I can scan them for you. In my recollection, it's more of an overview of what standards

[PSES] Risk Assessment question

All, Over the past several years, nearly all safety standards have incorporated Risk Assessment (RA) as a part of their requirements. I did an informal search and found that the assessment methods are used in a wide range of disciplines from electrical products to machinery, robotics, safety

[PSES] RED - risk assessment

When going for a RED certificate from a Notified Body, have you received a risk assessment template to fill in or do you supply with your own self-made risk document? (Maybe based on CENELEC guide 32 . ) Best regards Amund

Re: [PSES] Medical device risk assessment - faulty chargers

All, Realize IEC 60601-1, ed. 3.0 or 3.1 requires a process under ISO 14971, per sub-clause 4.2.2, so doesn’t matter what you think you need. Here is the first sentence of 4.2.2 “A RISK MANAGEMENT PROCESS complying with ISO 14971 shall be performed" So, sorry but ISO 14971 MEDICAL DEVICE risk

Re: [PSES] Medical device risk assessment - faulty chargers

“… does a palliative involve an interchange of energy? Yes, chemical energy. But, no injury. Rich - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a

Re: [PSES] Medical device risk assessment - faulty chargers

I knew someone would come back with that reply. Technically, it may or may not be correct (does a palliative involve an interchange of energy?) but in practice it stretches the original assertion beyond any useful application. As ever, real life is more complex than it is possible to express

Re: [PSES] Medical device risk assessment - faulty chargers

“Injuries to a living organism can be produced only by some energy interchange.” Not all risk are of energetic nature: Risk is never a function of energy interchange. Risk is the “combination of the probability of occurrence of harm and the severity of that harm.” Injury is a function

Re: [PSES] Medical device risk assessment - faulty chargers

Life is consist of risk assessments! If you cross a road, you quickly assess the risk of safely getting to the other side. What you call a scientific method, is a risk assessment based on physical hypotheses , but the hypothesis might be wrong tomorrow, or in another place. But the chance

Re: [PSES] Medical device risk assessment - faulty chargers

If the device transfers energy, but the energy proves ineffective, that is still an 'energy interchange'.  If the device fails to transfer energy, there is no 'cause' to produce an 'effect', so any injury is not due to the device but to some other energy interchange. Do we rename the list

Re: [PSES] Medical device risk assessment - faulty chargers

In the medical device context, no this is not correct because the failure of the device to provide the claimed medical benefit can be a cause of ‘injury’. Nick. > On 17 Apr 2018, at 20:17, Richard Nute wrote: > > > > Do you agree or disagree with James Gibson’s

Re: [PSES] Medical device risk assessment - faulty chargers

“… well understood risk management process provides a quite scientific and systematic method for identification of safety related issues in the construction…” I don’t agree that the risk management process “provides a scientific… method…” ISO 14971 requires identification of the

Re: [PSES] Medical device risk assessment - faulty chargers

Thanks for the explanations. However, I still think that at some point risk assessment is inevitable. John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK On 2018-04-17 00:22, Richard Nute wrote: … how do you test *objectively* the adequacy

Re: [PSES] Medical device risk assessment - faulty chargers

… how do you test objectively the adequacy of a symbol like the ! in a triangle… The ! is not a safeguard. Ultimately, the safeguard is some prescribed behavior on the part of a person. The manufacturer of equipment can only describe the desired behavior. The behavior can be tested to

Re: [PSES] Medical device risk assessment - faulty chargers

.  It was 'considered' that the probability of two coinciding pinholes was acceptably low. If that isn't a risk assessment, I'm not writing this message. This is just an example of 'test the adequacy of the safeguards'. Many others spring to mind rather readily; how do you test *objectively

Re: [PSES] Medical device risk assessment - faulty chargers

West London, UK From: Richard Nute [mailto:ri...@ieee.org] Sent: 16 April 2018 21:48 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Medical device risk assessment - faulty chargers I don’t like “risk assessment.” It is highly subjective and not scientific. Read ISO 14971 or any

Re: [PSES] Medical device risk assessment - faulty chargers

… 2 Means of Patient Protection (dielectric and spacings requirements)… I trust this statement is a slip-up. Spacings i.e., clearances, are an indirect measure of dielectric strength. They do not constitute two independent means of patient protection. Note that creepage distances

Re: [PSES] Medical device risk assessment - faulty chargers

lt;ari.honk...@sesko.fi <mailto:ari.honk...@sesko.fi>> *To: *"EMC-PSTC" <EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG>> *Sent: *Wednesday, April 11, 2018 5:20:35 AM *Subject: *Re: [PSES] Medical device risk assessment - faulty chargers

Re: [PSES] Medical device risk assessment - faulty chargers

is an unstated background to this discussion. > > Mike Sherman > Graco Inc. > > From: "Ari Honkala" <ari.honk...@sesko.fi> > To: "EMC-PSTC" <EMC-PSTC@LISTSERV.IEEE.ORG> > Sent: Wednesday, April 11, 2018 5:20:35 AM > Subject: Re: [PSES] Med

Re: [PSES] Medical device risk assessment - faulty chargers

: "Ari Honkala" <ari.honk...@sesko.fi> To: "EMC-PSTC" <EMC-PSTC@LISTSERV.IEEE.ORG> Sent: Wednesday, April 11, 2018 5:20:35 AM Subject: Re: [PSES] Medical device risk assessment - faulty chargers My first thought: what has the origin of the charger has to do with i

Re: [PSES] Medical device risk assessment - faulty chargers

...@conformance.co.uk] Sent: tiistai 10. huhtikuuta 2018 19:21 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Medical device risk assessment - faulty chargers Colleagues, EN 60601-1 3rd ed. requires the manufacturer to take a risk assessment based approach to the safety of their electrical medical products

Re: [PSES] Medical device risk assessment - faulty chargers

Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK On 2018-04-10 17:21, Nick Williams wrote: Colleagues, EN 60601-1 3rd ed. requires the manufacturer to take a risk assessment based approach to the safety of their electrical medical products. With the increased used of universal USB power

[PSES] Medical device risk assessment - faulty chargers

Colleagues, EN 60601-1 3rd ed. requires the manufacturer to take a risk assessment based approach to the safety of their electrical medical products. With the increased used of universal USB power as a source for battery charging, it’s easy for the risk assessment to identify use

Re: [PSES] Risk Assessment of Air Filter

, September 19, 2016 09:43 But what type of Fault Testing or Risk assessment needs to be done regarding the filter? With the filter removed, the instrument passes the construction requirements for a Fire Enclosure. But with the filter installed and because of its close proximity to the fan/blower; 1

Re: [PSES] Risk Assessment of Air Filter

lecom.com From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Monday, September 19, 2016 12:43 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Risk Assessment of Air Filter I seek advice and opinions from fellow safety minded people. Our typical product has a metal chassis which is

Re: [PSES] Risk Assessment of Air Filter

ing/maintaining it will be relatively "intelligent" and will suitably trained in how to perform those tasks correctly, and that includes use of the correct replacement parts during user maintenance. John E Allen W.London, UK From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent:

Re: [PSES] Risk Assessment of Air Filter

[PSES] Risk Assessment of Air Filter I seek advice and opinions from fellow safety minded people. Our typical product has a metal chassis which is constructed as a Fire Enclosure (laboratory equipment 61010-1). On the back is a cutout for a cooling fan/blower mounted in the cutout. The fan is

[PSES] Risk Assessment of Air Filter

Blocked Vent and Stalled Fan tests to insure no hazards are caused from the rise in internal temperatures. But what type of Fault Testing or Risk assessment needs to be done regarding the filter? With the filter removed, the instrument passes the construction requirements for a Fire Enclosure

Re: [PSES] Risk Assessment: Probability of Exposure

In message e79b96282e4f9f43baf7c6d3d578acde0907f...@ca1exclv07.adcorp.kla-tencor.co m, dated Thu, 14 Jun 2012, Crane, Lauren lauren.cr...@kla-tencor.com writes: I wonder how to decide if John's view (the hazard is exposed to personnel) or my view (personnel are exposed to the hazard) is the

[PSES] Risk Assessment: Probability of Exposure

I'm seeking a clearer definition of what the term, Probability of Exposure means in regards to IEC 61010-1 3rd Ed. In table 12. There are two choices; Exposure is not intended during Normal Use And Exposure is intended during Normal Use. What I have is a pinch hazard which exceeds the

Re: [PSES] Risk Assessment: Probability of Exposure

Brian Compared with Severity issues, the Probability issue is always a difficult subject to address in risk assessment because it can be, and often is, far more subjective, especially where it involves human behaviour - human error being one of the greatest causes of accidents

Re: [PSES] Risk Assessment: Probability of Exposure

In message 64D32EE8B9CBDD44963ACB076A5F6ABB0261F219@Mailbox-Tech.lecotech.local, dated Thu, 14 Jun 2012, Kunde, Brian brian_ku...@lecotc.com writes: Would this be considered intended or not intended exposure? If properly drafted, a standard must confine its provisions to those

Re: [PSES] Risk Assessment: Probability of Exposure

: Thursday, June 14, 2012 3:21 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Risk Assessment: Probability of Exposure In message 64D32EE8B9CBDD44963ACB076A5F6ABB0261F219@Mailbox-Tech.lecotech.local, dated Thu, 14 Jun 2012, Kunde, Brian brian_ku...@lecotc.com writes: Would this be considered

CSA's new Risk Assessment Standard, CSA Z1002, out for public review

Fellow listers, I am pleased to announce that CSA's new OHS Risk assessment standard, CSA Z1002, is out for public review and comment as of today. When published this year, Z1002 will become a Canadian National Standard and will have influence on other standards in the CSA Catalog

Seeking licensed PE for thorough product review and Risk Assessment

Dear Colleagues, Teradyne is seeking the services of a Principal Mechanical Engineer, who is also a licensed PE to provide the guidance and leadership required to complete a thorough product review for Risk Assessment. This individual should possess the following skill sets and/or experiences

risk assessment

Dec 11. 2000 To all of you that took time out to help me. Thank you , Thank you. Thank you so much for all the help that you have provided me. All responses had very good information in them. Sincerely Stig W. Jorgensen jorgen...@skyskan.com --- This

RE: Risk assessment

mailto:alan.brews...@novellus.com -- From: Stig Jorgensen [SMTP:jorgen...@skyskan.com] Sent: Thursday, December 07, 2000 12:25 PM To: emc-p...@ieee.org Subject: Risk assessment Hi Group, Dec 07,2000

RE: Risk assessment

Hi Stig, One of my side jobs is in the Army National Guard Field Artillery. We perform a risk assessment at each firing point we pull into using an Army manual, FM 100-14 (Risk Management). I was surprised to see how closely their documentation parallels EN 1050 in many aspects. Here's

RE: Risk assessment

This is also the Risk Assessment matrix that all military services and several other government agencies used in program/product development. It is included in Mil-Std-882D, DOD Standard Practice for System Safety - released February 2000. System Safety is generally the equivalent to Product

Re: Risk assessment

Deep within a very interesting paper on EMC and Functional Safety by the IEE at http://www.iee.org.uk/PAB/EMC/core.htm in section 13.5 (page 49 on my copy) are pretty classic descriptions of probability and severity. These probably are descendents of MILSTD1442, and are probably also treated

RE: Risk assessment

Facsimile : +61 2 9663 1412 Mobile : 0418 464 016 -Original Message- From: Stig Jorgensen [mailto:jorgen...@skyskan.com] Sent: 8 December 2000 7:25 To: emc-p...@ieee.org Subject:Risk

Re: Risk assessment

Hi Stig: I believe you are interested in severity of injury, not potential for injury, or risk of injury. Here is a numerical assignment for severity of injury that I found in my files. I have no idea of its source. 10 Death 9 Long-term or permanent coma 8 Full body

Risk assessment

Hi Group, Dec 07,2000 I am in the process of establishing the potential for an injury from a hazard. I can get a reasonable 'expression' to describe the potential for a hazard to turn into an accident (event). I am looking for the words that classifies the

risk assessment

Has anyone attended a seminar which they would recommend on hazard analysis and or risk assessment? Sandy