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COSC standards | Rate Topic |
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Posted: Tue Nov 21st, 2006 10:43 am |
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1st Post |
Johnny P Advisor ![]()
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Temperatures The next three test periods determine how much the rate varies between three different temperatures — 8°, 23° and 38°C. Excessive changes in the rate could show that the balance-spring alloy is not up to standard.:D http://www.timezone.com/library/wbore/wbore631733384647656250 http://www.cosc.ch/chronometre.php?lang=en
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Posted: Tue Nov 21st, 2006 01:34 pm |
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2nd Post |
e.avery 3T WIS ![]()
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The temp. test will show if the allow was not mixed in the proper proportions or just mixed enough to get a homogeneous mixture. Have not read the attachments but will when I have a second. It will also show that the corect lubricants were used at the proper locations, to viscous will slow a irregular amount at -8 deg C.
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