Re: [PSES] Hot surface sign

[Pete Perkins]

Scott, et al,

 

   Having worked with developing markings for 60950 and 62368-1 it 
is clear that there needs to be latitude given in the final marking depending 
upon the details of the design and the approaches that seem to be the best fit 
for the application.  

 

   At the highest level it is clear that full color, legible 
complete markings are the most desirable.  However, there are issues in making 
that work in every instance.  Joshua’s example of a marking stamped in the 
stainless steel is a good example of that; it provides the marking in a durable 
way where it is applicable.

 

   Hopefully, this type of practicality will not be forgotten in 
our work.  

 

:>) br,  Pete

 

Peter E Perkins, PE

Principal Product Safety & Regulatory Affairs Consultant

PO Box 1067

Albany, ORe  97321-0413

 

503/452-1201

 

IEEE Life Fellow

IEEE PSES 2020 Distinguished Lecturer

 <http://www.researchgate.net/Peter%20Perkins> www.researchgate.net search my 
name

 <mailto:p.perk...@ieee.org> p.perk...@ieee.org

 

 

Entropy ain’t what it used to be

 

From: Scott Xe  
Sent: Thursday, May 27, 2021 7:55 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Hot surface sign

 

Dear Josh,

 

Although the contrast of warning size is not perfect, there is no specific 
requirement given and common on the product.

 

Regards,

 

Scott

 

On Wed, 26 May 2021 at 22:14, Wiseman, Joshua 
mailto:joshua.wise...@orthoclinicaldiagnostics.com> > wrote:

Scott,

 

At my previous employer we had the symbol stamped into the stainless steel of a 
part on the commercial griddle. A traditional label would not withstand the 
heat in this instance and with-it being part of the sheet metal it me all the 
cleaning and legibility requirements. It’s hard to see but I took a snippet of 
one from a video of the griddle on YouTube.

 



 

Josh

 

Joshua Wiseman

Staff Engineer, Product Safety/EMC/Systems

 

From: Scott Xe mailto:scott...@gmail.com> > 
Sent: Wednesday, May 26, 2021 10:04 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> 
Subject: [PSES] Hot surface sign

 

EXTERNAL SENDER: Verify links, attachments and sender before taking action

 

In some cooking appliances, there are some hot surfaces that may cause burn 
injury and safety standards suggest putting a hot surface sign to alert the 
users.

*   Is there any specific colour requirement?  Common practice is black 
colour on yellow background or white colour on black background.
*   Is an embossed sign black on black considered as a legible sign in EU 
criteria perspective?
*   In case of ink-printed label, is it put on the top of the hot surface 
or next to the hot surface?  If on the top of surface, the colours are 
protected from heat degradation and specialized adhesives should be used to 
withstand higher temperatures.  Is there any test criteria for verification?

Thanks and regards,

 

Scott

-


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Re: [PSES] Hot surface sign

[Scott Xe]

Dear Josh,

Although the contrast of warning size is not perfect, there is no specific
requirement given and common on the product.

Regards,

Scott

On Wed, 26 May 2021 at 22:14, Wiseman, Joshua <
joshua.wise...@orthoclinicaldiagnostics.com> wrote:

> Scott,
>
>
>
> At my previous employer we had the symbol stamped into the stainless steel
> of a part on the commercial griddle. A traditional label would not
> withstand the heat in this instance and with-it being part of the sheet
> metal it me all the cleaning and legibility requirements. It’s hard to see
> but I took a snippet of one from a video of the griddle on YouTube.
>
>
>
>
>
> Josh
>
>
>
> *Joshua Wiseman*
>
> Staff Engineer, Product Safety/EMC/Systems
>
>
>
> *From:* Scott Xe 
> *Sent:* Wednesday, May 26, 2021 10:04 AM
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* [PSES] Hot surface sign
>
>
>
> *EXTERNAL SENDER: Verify links, attachments and sender before taking
> action*
>
>
>
> In some cooking appliances, there are some hot surfaces that may cause
> burn injury and safety standards suggest putting a hot surface sign to
> alert the users.
>
>- Is there any specific colour requirement?  Common practice is black
>colour on yellow background or white colour on black background.
>- Is an embossed sign black on black considered as a legible sign in
>EU criteria perspective?
>- In case of ink-printed label, is it put on the top of the hot
>surface or next to the hot surface?  If on the top of surface, the colours
>are protected from heat degradation and specialized adhesives should be
>used to withstand higher temperatures.  Is there any test criteria for
>verification?
>
> Thanks and regards,
>
>
>
> Scott
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
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>
> Attachments are not permitted but the IEEE PSES Online Communities site at
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> can be used for graphics (in well-used formats), large files, etc.
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-
-

Re: [PSES] Hot surface sign

[Scott Xe]

Dear Charlie,

Thanks for the useful information!  I really discover such sign is commonly
on MWOs, induction cookers, sandwich makers, etc.  The document contains
greater detail about this sign.

Best regards,

Scott

On Thu, 27 May 2021 at 03:19, Charlie Blackham 
wrote:

> Scott
>
>
>
> I’ve not read it (44 pages) but EU LVD market enforcement did a report 
> “Non-functional
> Hot Surfaces Project”
>
>
>
> https://ec.europa.eu/docsroom/documents/5263/attachments/1/translations
>
>
>
> Some standards, such as EN 60335-2-9 (Household and similar electrical
> appliances - Safety - Part 2-9: Particular requirements for grills,
> toasters and similar portable cooking appliances) have different limits if
> equipment is labelled
>
>
>
> The ISO symbol IEC 60417 - 5041, Caution, hot surface (iso.org)
> <https://www.iso.org/obp/ui#iec:grs:60417:5041>, is often referred to,
> but I’m not aware that colours or contrast is mandated
>
>
>
> Best regards
>
> Charlie
>
>
>
> *Charlie Blackham*
>
> *Sulis Consultants Ltd*
>
> *Tel: +44 (0)7946 624317*
>
> *Web: https://sulisconsultants.com/ <https://sulisconsultants.com/> *
>
> Registered in England and Wales, number 05466247
>
>
>
> *From:* Brian Kunde 
> *Sent:* 26 May 2021 18:08
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* Re: [PSES] Hot surface sign
>
>
>
> Usually, high-temperature surface warning symbols are only required if the
> hazard is not obvious.  So in ovens, stovetops, griddles, toasters,
> heat-sinks, etc. do not require them.
>
>
>
> However, if such appliances or device have areas that are hot but it is
> not obvious it is hot, a warning symbol might be required.
>
>
>
> At home, I have a 2-slice toaster. It is a "Cool Touch" toaster that has
> no hot exposed surfaces, except from the small surface between the two
> slots on the top.  So the manufacturer engraved the symbol on the metal
> surface.  Not a bad idea.  But back in the day, the sides of a toaster got
> really hot; hot enough to melt the Wonder Bread bag.  As a kid, I think
> every toaster I ever saw had a Wonder Bread bag melted on the side.
>
>
>
> The Other Brian
>
>
>
> On Wed, May 26, 2021 at 10:04 AM Scott Xe  wrote:
>
> In some cooking appliances, there are some hot surfaces that may cause
> burn injury and safety standards suggest putting a hot surface sign to
> alert the users.
>
>- Is there any specific colour requirement?  Common practice is black
>colour on yellow background or white colour on black background.
>- Is an embossed sign black on black considered as a legible sign in
>EU criteria perspective?
>- In case of ink-printed label, is it put on the top of the hot
>surface or next to the hot surface?  If on the top of surface, the colours
>are protected from heat degradation and specialized adhesives should be
>used to withstand higher temperatures.  Is there any test criteria for
>verification?
>
> Thanks and regards,
>
>
>
> Scott
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to 
> emc-p...@ieee.org
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/ can be used for graphics (in
> well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
> Instructions: http://www.ieee-pses.org/list.html (including how to
> unsubscribe) <http://www.ieee-pses.org/list.html>
> List rules: http://www.ieee-pses.org/listrules.html
>
> For help, send mail to the list administrators:
> Scott Douglas sdoug...@ieee.org
> Mike Cantwell mcantw...@ieee.org
>
> For policy questions, send mail to:
> Jim Bacher j.bac...@ieee.org
> David Heald dhe...@gmail.com
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/ can be used for graphics (in
> well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
> Instructions: http:

Re: [PSES] Hot surface sign

[Wiseman, Joshua]

I was part of the TC61 MT that did this work for the Commercial Cooking Equip. 
There are a number of zones called out, Non-functional hot surface and Adjacent 
surface. I recall there being at least one more term but it escapes me at the 
moment.

Josh


From: Charlie Blackham 
Sent: Wednesday, May 26, 2021 3:19 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Hot surface sign

EXTERNAL SENDER: Verify links, attachments and sender before taking action


Scott

I've not read it (44 pages) but EU LVD market enforcement did a report 
"Non-functional Hot Surfaces Project"

https://ec.europa.eu/docsroom/documents/5263/attachments/1/translations<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fec.europa.eu%2Fdocsroom%2Fdocuments%2F5263%2Fattachments%2F1%2Ftranslations=04%7C01%7Cjoshua.wiseman%40orthoclinicaldiagnostics.com%7Cba5ba8908c3a4e28f95408d9207b3378%7C6e63ffc0c2fc4cc4b6c4666b2ce89d92%7C0%7C0%7C637576536842030234%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000=MLVz13PeVfzFYzBrvrVJX%2Fm4Vb5hbR1VH3ox3aRX%2FZk%3D=0>

Some standards, such as EN 60335-2-9 (Household and similar electrical 
appliances - Safety - Part 2-9: Particular requirements for grills, toasters 
and similar portable cooking appliances) have different limits if equipment is 
labelled

The ISO symbol IEC 60417 - 5041, Caution, hot surface 
(iso.org)<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.iso.org%2Fobp%2Fui%23iec%3Agrs%3A60417%3A5041=04%7C01%7Cjoshua.wiseman%40orthoclinicaldiagnostics.com%7Cba5ba8908c3a4e28f95408d9207b3378%7C6e63ffc0c2fc4cc4b6c4666b2ce89d92%7C0%7C0%7C637576536842040190%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000=YEt93QA7rZlZQ%2FvKTDIy9tGP92hSPqplc8MG1mU5D2U%3D=0>,
 is often referred to, but I'm not aware that colours or contrast is mandated

Best regards
Charlie

Charlie Blackham
Sulis Consultants Ltd
Tel: +44 (0)7946 624317
Web: 
https://sulisconsultants.com/<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsulisconsultants.com%2F=04%7C01%7Cjoshua.wiseman%40orthoclinicaldiagnostics.com%7Cba5ba8908c3a4e28f95408d9207b3378%7C6e63ffc0c2fc4cc4b6c4666b2ce89d92%7C0%7C0%7C637576536842040190%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000=lRYGU5oJ0qtGYrQ7nJRGeXc%2FIZPWczgLmUou1qxhn1o%3D=0>
Registered in England and Wales, number 05466247

From: Brian Kunde mailto:bkundew...@gmail.com>>
Sent: 26 May 2021 18:08
To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG>
Subject: Re: [PSES] Hot surface sign

Usually, high-temperature surface warning symbols are only required if the 
hazard is not obvious.  So in ovens, stovetops, griddles, toasters, heat-sinks, 
etc. do not require them.

However, if such appliances or device have areas that are hot but it is not 
obvious it is hot, a warning symbol might be required.

At home, I have a 2-slice toaster. It is a "Cool Touch" toaster that has no hot 
exposed surfaces, except from the small surface between the two slots on the 
top.  So the manufacturer engraved the symbol on the metal surface.  Not a bad 
idea.  But back in the day, the sides of a toaster got really hot; hot enough 
to melt the Wonder Bread bag.  As a kid, I think every toaster I ever saw had a 
Wonder Bread bag melted on the side.

The Other Brian

On Wed, May 26, 2021 at 10:04 AM Scott Xe 
mailto:scott...@gmail.com>> wrote:
In some cooking appliances, there are some hot surfaces that may cause burn 
injury and safety standards suggest putting a hot surface sign to alert the 
users.

  *   Is there any specific colour requirement?  Common practice is black 
colour on yellow background or white colour on black background.
  *   Is an embossed sign black on black considered as a legible sign in EU 
criteria perspective?
  *   In case of ink-printed label, is it put on the top of the hot surface or 
next to the hot surface?  If on the top of surface, the colours are protected 
from heat degradation and specialized adhesives should be used to withstand 
higher temperatures.  Is there any test criteria for verification?
Thanks and regards,

Scott
-


This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 
emc-p...@ieee.org<mailto:emc-p...@ieee.org>

All emc-pstc postings are archived and searchable on the web at: 
http://www.ieee-pses.org/emc-pstc.html<https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Femc-pstc.html=04%7C01%7Cjoshua.wiseman%40orthoclinicaldiagnostics.com%7Cba5ba8908c3a4e28f95408d9207b3378%7C6e63ffc0c2fc4cc4b6c4666b2ce89d92%7C0%7C0%7C637576536842050141%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M

Re: [PSES] Hot surface sign

[Douglas E Powell]

I once informed an engineer he needed a hot surface label, because he
exceeded the limit. After selecting an adhesive label, he asked how hot can
it get if it's labeled.  Tongue in cheek, I told him he could not melt or
burn the label since it had to remain legible.

-Doug


Douglas E Powell
Laporte, Colorado USA
doug...@gmail.com
http://www.linkedin.com/in/dougp01

On Wed, May 26, 2021 at 1:19 PM Charlie Blackham <
char...@sulisconsultants.com> wrote:

> Scott
>
>
>
> I’ve not read it (44 pages) but EU LVD market enforcement did a report 
> “Non-functional
> Hot Surfaces Project”
>
>
>
> https://ec.europa.eu/docsroom/documents/5263/attachments/1/translations
>
>
>
> Some standards, such as EN 60335-2-9 (Household and similar electrical
> appliances - Safety - Part 2-9: Particular requirements for grills,
> toasters and similar portable cooking appliances) have different limits if
> equipment is labelled
>
>
>
> The ISO symbol IEC 60417 - 5041, Caution, hot surface (iso.org)
> <https://www.iso.org/obp/ui#iec:grs:60417:5041>, is often referred to,
> but I’m not aware that colours or contrast is mandated
>
>
>
> Best regards
>
> Charlie
>
>
>
> *Charlie Blackham*
>
> *Sulis Consultants Ltd*
>
> *Tel: +44 (0)7946 624317*
>
> *Web: https://sulisconsultants.com/ <https://sulisconsultants.com/> *
>
> Registered in England and Wales, number 05466247
>
>
>
> *From:* Brian Kunde 
> *Sent:* 26 May 2021 18:08
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* Re: [PSES] Hot surface sign
>
>
>
> Usually, high-temperature surface warning symbols are only required if the
> hazard is not obvious.  So in ovens, stovetops, griddles, toasters,
> heat-sinks, etc. do not require them.
>
>
>
> However, if such appliances or device have areas that are hot but it is
> not obvious it is hot, a warning symbol might be required.
>
>
>
> At home, I have a 2-slice toaster. It is a "Cool Touch" toaster that has
> no hot exposed surfaces, except from the small surface between the two
> slots on the top.  So the manufacturer engraved the symbol on the metal
> surface.  Not a bad idea.  But back in the day, the sides of a toaster got
> really hot; hot enough to melt the Wonder Bread bag.  As a kid, I think
> every toaster I ever saw had a Wonder Bread bag melted on the side.
>
>
>
> The Other Brian
>
>
>
> On Wed, May 26, 2021 at 10:04 AM Scott Xe  wrote:
>
> In some cooking appliances, there are some hot surfaces that may cause
> burn injury and safety standards suggest putting a hot surface sign to
> alert the users.
>
>- Is there any specific colour requirement?  Common practice is black
>colour on yellow background or white colour on black background.
>- Is an embossed sign black on black considered as a legible sign in
>EU criteria perspective?
>- In case of ink-printed label, is it put on the top of the hot
>surface or next to the hot surface?  If on the top of surface, the colours
>are protected from heat degradation and specialized adhesives should be
>used to withstand higher temperatures.  Is there any test criteria for
>verification?
>
> Thanks and regards,
>
>
>
> Scott
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to 
> emc-p...@ieee.org
>
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> http://www.ieee-pses.org/emc-pstc.html
>
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> http://product-compliance.oc.ieee.org/ can be used for graphics (in
> well-used formats), large files, etc.
>
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Re: [PSES] Hot surface sign

[Charlie Blackham]

Scott

I’ve not read it (44 pages) but EU LVD market enforcement did a report 
“Non-functional Hot Surfaces Project”

https://ec.europa.eu/docsroom/documents/5263/attachments/1/translations

Some standards, such as EN 60335-2-9 (Household and similar electrical 
appliances - Safety - Part 2-9: Particular requirements for grills, toasters 
and similar portable cooking appliances) have different limits if equipment is 
labelled

The ISO symbol IEC 60417 - 5041, Caution, hot surface 
(iso.org)<https://www.iso.org/obp/ui#iec:grs:60417:5041>, is often referred to, 
but I’m not aware that colours or contrast is mandated

Best regards
Charlie

Charlie Blackham
Sulis Consultants Ltd
Tel: +44 (0)7946 624317
Web: https://sulisconsultants.com/
Registered in England and Wales, number 05466247

From: Brian Kunde 
Sent: 26 May 2021 18:08
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Hot surface sign

Usually, high-temperature surface warning symbols are only required if the 
hazard is not obvious.  So in ovens, stovetops, griddles, toasters, heat-sinks, 
etc. do not require them.

However, if such appliances or device have areas that are hot but it is not 
obvious it is hot, a warning symbol might be required.

At home, I have a 2-slice toaster. It is a "Cool Touch" toaster that has no hot 
exposed surfaces, except from the small surface between the two slots on the 
top.  So the manufacturer engraved the symbol on the metal surface.  Not a bad 
idea.  But back in the day, the sides of a toaster got really hot; hot enough 
to melt the Wonder Bread bag.  As a kid, I think every toaster I ever saw had a 
Wonder Bread bag melted on the side.

The Other Brian

On Wed, May 26, 2021 at 10:04 AM Scott Xe 
mailto:scott...@gmail.com>> wrote:
In some cooking appliances, there are some hot surfaces that may cause burn 
injury and safety standards suggest putting a hot surface sign to alert the 
users.

  *   Is there any specific colour requirement?  Common practice is black 
colour on yellow background or white colour on black background.
  *   Is an embossed sign black on black considered as a legible sign in EU 
criteria perspective?
  *   In case of ink-printed label, is it put on the top of the hot surface or 
next to the hot surface?  If on the top of surface, the colours are protected 
from heat degradation and specialized adhesives should be used to withstand 
higher temperatures.  Is there any test criteria for verification?
Thanks and regards,

Scott
-


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Re: [PSES] Hot surface sign

[Brian Kunde]

Usually, high-temperature surface warning symbols are only required if the
hazard is not obvious.  So in ovens, stovetops, griddles, toasters,
heat-sinks, etc. do not require them.

However, if such appliances or device have areas that are hot but it is not
obvious it is hot, a warning symbol might be required.

At home, I have a 2-slice toaster. It is a "Cool Touch" toaster that has
no hot exposed surfaces, except from the small surface between the two
slots on the top.  So the manufacturer engraved the symbol on the metal
surface.  Not a bad idea.  But back in the day, the sides of a toaster got
really hot; hot enough to melt the Wonder Bread bag.  As a kid, I think
every toaster I ever saw had a Wonder Bread bag melted on the side.

The Other Brian

On Wed, May 26, 2021 at 10:04 AM Scott Xe  wrote:

> In some cooking appliances, there are some hot surfaces that may cause
> burn injury and safety standards suggest putting a hot surface sign to
> alert the users.
>
>- Is there any specific colour requirement?  Common practice is black
>colour on yellow background or white colour on black background.
>- Is an embossed sign black on black considered as a legible sign in
>EU criteria perspective?
>- In case of ink-printed label, is it put on the top of the hot
>surface or next to the hot surface?  If on the top of surface, the colours
>are protected from heat degradation and specialized adhesives should be
>used to withstand higher temperatures.  Is there any test criteria for
>verification?
>
> Thanks and regards,
>
> Scott
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to 
> emc-p...@ieee.org
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/ can be used for graphics (in
> well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
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> Mike Cantwell mcantw...@ieee.org
>
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> Jim Bacher j.bac...@ieee.org
> David Heald dhe...@gmail.com
>

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Re: [PSES] Hot surface sign

[Wiseman, Joshua]

Scott,

At my previous employer we had the symbol stamped into the stainless steel of a 
part on the commercial griddle. A traditional label would not withstand the 
heat in this instance and with-it being part of the sheet metal it me all the 
cleaning and legibility requirements. It's hard to see but I took a snippet of 
one from a video of the griddle on YouTube.

[cid:image003.png@01D75217.ECB8ABD0]

Josh

Joshua Wiseman
Staff Engineer, Product Safety/EMC/Systems


From: Scott Xe 
Sent: Wednesday, May 26, 2021 10:04 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Hot surface sign

EXTERNAL SENDER: Verify links, attachments and sender before taking action


In some cooking appliances, there are some hot surfaces that may cause burn 
injury and safety standards suggest putting a hot surface sign to alert the 
users.

  *   Is there any specific colour requirement?  Common practice is black 
colour on yellow background or white colour on black background.
  *   Is an embossed sign black on black considered as a legible sign in EU 
criteria perspective?
  *   In case of ink-printed label, is it put on the top of the hot surface or 
next to the hot surface?  If on the top of surface, the colours are protected 
from heat degradation and specialized adhesives should be used to withstand 
higher temperatures.  Is there any test criteria for verification?
Thanks and regards,

Scott
-


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[PSES] Hot surface sign

[Scott Xe]

In some cooking appliances, there are some hot surfaces that may cause burn
injury and safety standards suggest putting a hot surface sign to alert
the users.

   - Is there any specific colour requirement?  Common practice is black
   colour on yellow background or white colour on black background.
   - Is an embossed sign black on black considered as a legible sign in EU
   criteria perspective?
   - In case of ink-printed label, is it put on the top of the hot surface
   or next to the hot surface?  If on the top of surface, the colours are
   protected from heat degradation and specialized adhesives should be used to
   withstand higher temperatures.  Is there any test criteria for verification?

Thanks and regards,

Scott

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