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PostPosted: 27 Mar 2013, 20:10 
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By the way, does anybody happen to have a copy of old LARCs ? Let's say LARC 23 and prior (I now have 24 till now).


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PostPosted: 27 Mar 2013, 20:12 
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lecridupongiste wrote:
There are 106 different brands and 1383 rubbers on the LARC 33B (or so my little script tells me). Back in 2009, I asked Odd Gustavsen about those fees.
"Testing fee : USD 550,
Per year, first rubber USD 1500, per each added USD 200."
Let's assume that those fees weren't revised since that time. I know - that's somewhat bold.
Total : a little over USD 410k per year just to keep those rubbers on the list, nearly twice what you thought.

The sum for the approval fee is left as an exercise for the reader !

Thanks lecridupongiste! :up:

Wow, that's a lot of money!!!

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PostPosted: 27 Mar 2013, 20:26 
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Haggisv, there's been a mix up in your quote. It should read "lecridupongiste" as I wrote that part ;)


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PostPosted: 27 Mar 2013, 22:59 
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lecridupongiste wrote:
Haggisv, there's been a mix up in your quote. It should read "lecridupongiste" as I wrote that part ;)

Indeed there is (fixed now), thank you for that lecridupongiste! :up: :up: :up:

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PostPosted: 27 Oct 2019, 22:10 
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lecridupongiste wrote:
By the way, does anybody happen to have a copy of old LARCs ? Let's say LARC 23 and prior (I now have 24 till now).
https://web.archive.org/web/20120113010 ... _30_OK.pdf

https://web.archive.org/web/20120815070 ... st_30B.pdf

https://web.archive.org/web/20090117073 ... t_29B+.pdf

LARC#29 ☢ LOW-FRICTION RUBBERS MASSIVE REMOVAL ☢ (42 in total)
https://web.archive.org/web/20080913080 ... _no_29.pdf Low-friction species invalidated as of July1, 2008.

https://web.archive.org/web/20090616191 ... ist27B.pdf

https://web.archive.org/web/20111030145 ... ist26B.pdf

https://web.archive.org/web/20070124195 ... List25.pdf

https://web.archive.org/web/20120112061 ... ist25B.pdf

https://web.archive.org/web/20060111114 ... ist24B.pdf

https://web.archive.org/web/20031118034 ... t_2003.pdf

https://web.archive.org/web/20090407050 ... r_List.pdf

https://web.archive.org/web/20070529195 ... equipment/

https://web.archive.org/web/*/http://ww ... quipment/*

/Be happy/


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PostPosted: 28 Oct 2019, 11:56 
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LET'S GO TO THE INNOWEP TESTING LAB Wuerzburg, Germany.
INNOWEP has been a good friend with ITTF for 10 years, offering all the testing works we need.

http://www.innowep.com/uploadfile/2016/ ... 249243.pdf
1. UST® Universal Surface Tester. It is a useful testing apparatus to measure precise microfriction on the pimples-out rubber. The normal force applied to the pimpled surface is just 5 grammes/f so as to avoid "long grass bending effect".
Attachment:
innowep_UST.jpg
innowep_UST.jpg [ 32.57 KiB | Viewed 244 times ]

picture ...
http://www.innowep.com/uploadfile/2015/ ... 3005368.pd
2. OptoTop® will scan the topsheet pimpled surface first, and then give you 3D map of the surface from where a pimple's geometry can be clearly seen within a microne accuracy.
Attachment:
innowep_OptoTop_profilometer.jpg
innowep_OptoTop_profilometer.jpg [ 457.94 KiB | Viewed 244 times ]
This is some realistic PC screen-shot for Friction Test as being conducted with UST on a plastic film.
Attachment:
Innowep-UST_screen.jpg
Innowep-UST_screen.jpg [ 223.41 KiB | Viewed 244 times ]

SOME MORE QUESTIONS OF INTEREST.
1) if so, how many rubbers did the ittf test and how many of these rubbers did not meet the requirements?
2) where exactly on paper does the ittf state how many "inconsistant" rubbers lead to the elimination of a specific rubber?
3)how many mN did these sheets reach?

As Adham mentioned in his many talks here, the Laboratory Testing Log is a property by ITTF and the numerical data of the tests is a confidential information not to be disclosed.
viewtopic.php?f=25&t=5357&start=810

This is the reason that nobody can know which Rubber Brand on market comes with the "least grippy pimples" or which anti is an "ideal frictionless". Anyone looking to know the actual numbers has to do friction tests on his own.


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PostPosted: 28 Oct 2019, 22:05 
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Blade: Hurricane Long 3
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Another irrelevant post from the Igor-bot.

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PostPosted: 31 Oct 2019, 12:26 
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ITTF EQUIPMENT APPROVAL POLICY

Quote:
12.6. Invoice by ITTF for the testing fees of the equipment submitted
The ITTF Equipment Staff will issue and send to the suppliers the invoice for the testing fees.
The testing fees are available to all suppliers, upon request. Testing fees are subject to
change, according to the quotes received by the testing institutes. They shall be paid before
testing will take place.

12.7. Samples will be tested by one of the ITTF testing institutes
ITTF is cooperating with different testing institutes, which conduct the testing for approvals.
Direct contact between the suppliers and the ITTF testing institutes, is not allowed. Any
requests about ITTF testing should be addressed to the ITTF directly. The ITTF will reply to
the enquiries or contact the testing institutes, where necessary, and will send the requested
feedback to suppliers. ITTF Testing institutes that are accredited for certifying national or
international standards shall be made known to the suppliers.

12.8. Communication of testing results to suppliers
ITTF Equipment staff will send the testing results, together with the EqC expert’s feedback, to
the supplier concerned, once the results are received from the testing institutes and the
conclusions submitted by the EQC expert’s, provided that the testing fees are paid.

12.9. Outcome of testing results

12.9.1. If the equipment fails the tests:
The ITTF Equipment Committee takes a decision which is communicated to the supplier.

a) Suppliers can re-start the process and submit new samples for testing.
b) A testing fee is applicable for each separate testing.
c) In some cases the EqC may ask suppliers to improve aspects of the equipment. After
having analysed the plan and details for improvements of the supplier, the EqC may
grant approval without further testing or may require new full or partial testing.

12.9.2. If the equipment passes the tests:
The ITTF Equipment Committee takes a decision which is communicated to the supplier.

a) The equipment is eligible to be added onto the ITTF List(s).
b) When sending the test results to suppliers, the ITTF Equipment Staff will also ask them
to indicate the time for adding the equipment on ITTF List(s), and may announce
conditions to be fulfilled before approval can be accomplished.
c) The ITTF Equipment Staff will charge the adequate approval fee and check its settlement
and will verify that all other requirements or conditions are fulfilled, before approval can
be finalized and equipment integrate the ITTF List(s)
d) Once the approval is finalized, the ITTF Equipment staff will update the ITTF List(s) and
the certificate of approval of the supplier(s), and send it together with the e-mail/letter
of confirmation to the supplier(s).
e) Only after the equipment is added on the ITTF Approval List, the approval is considered
complete and the equipment can then be marketed as ITTF Approved/Authorized.
Winning an ITTF approval certificate is some money-eater business, indeed.
The testing cost as currently charged by INNOWAP lab is some 300 USD per item. ITTF gonna to ask for some abatement.


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PostPosted: 16 Nov 2019, 19:11 
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IN's and ANTI's.
Rubber topsheet designations one can see in the LARC are [IN] and [ANTI].
What is the difference? Yes, "anti" is a designation for low-friction inverted rubbers. Still, they don"t give us any numerical values for anti's. I feel it an incumbent on me to give you the true numbers.
Well, ITTF will classify a pips-in rubber topsheet as "ANTI" if, upon the lab friction trials, the rubber comes out with CoF=1.0 and under.

/Be happy/


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