says
Shoo...nothing to see here. - zeio
The VOC content threshold back in late 2008 was 5 ppm.
http://ooakforum.com/viewtopic.php?t=4762
Then it was announced in Jul 2010 and further clarified in Aug 2010 that the target was:
4 ppm from Oct 7, 2009 to Aug 31, 2010;
3 ppm in Sep 1, 2010;
2 ppm in Sep 1, 2011.
Yet, in May 2011, the 2 ppm threshold was revoked after the Chinese TTA proposed for a temporary halt in face of the London Olympics. The threshold has been at 3 ppm ever since.
There you have it. Anything lower than 3 ppm gets you nothing but false positives. After years of messing around, they figured out 2 things. We couldn't detect it and we couldn't tell if the booster has been applied at the factory or not. Yay!!
http://ooakforum.com/viewtopic.php?t=4762
Then it was announced in Jul 2010 and further clarified in Aug 2010 that the target was:
4 ppm from Oct 7, 2009 to Aug 31, 2010;
3 ppm in Sep 1, 2010;
2 ppm in Sep 1, 2011.
Yet, in May 2011, the 2 ppm threshold was revoked after the Chinese TTA proposed for a temporary halt in face of the London Olympics. The threshold has been at 3 ppm ever since.
Proposed by the CHN TT Association
To modify Technical Leaflet T9, Racket Control (9.1):
9.1 Harmful volatile solvents measurement with MiniRAE-Lite®
The ITTF has banned volatile solvents from use on the racket. The limit has been decided by the ITTF Executive Committee as follows:
• from September 2009 to August 2010: maximum reading of 4,0 (4,0 is accepted);
• from September 2010 to August 2011: maximum reading of 3,0 (3,0 is accepted);
• from September 2011 to [strike]August 2012[/strike]: maximum reading of [strike]2,0[/strike] 3,0 (2,0 3,0 is accepted).
Explanation:
Currently the tolerance of VOC is 3 ppm, and the limit will be reduced to 2 ppm in September 2011.
As we know, the London Olympic Games will be held in 2012, and too many changes to racket control regulations will be harmful for the players’ preparation work. If the players pay too much attention to racket control, it will be difficult for them to devote themselves to the competitions.
Therefore, they will not be able to display their best skills. Besides, the current calibration could hardly detect the minor difference between 3ppm to 2 ppm. For this reason, we suggest that the racket control regulations be kept stable during a certain period. It will be better to adjust the regulations every 4 years according to the Olympic Games period, instead of making changes every year. With the stable regulations, the players can concentrate in practicing and the technical level of our sport will be raised.
There you have it. Anything lower than 3 ppm gets you nothing but false positives. After years of messing around, they figured out 2 things. We couldn't detect it and we couldn't tell if the booster has been applied at the factory or not. Yay!!
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