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Cigerette Smoke Contamination of PCA's

Nick Harris

#1908

Cigerette Smoke Contamination of PCA's | 14 February, 2000

I am looking for any information out there concerning cigerette smoke and it's effects on Printed Circuit Board Assemblies. If anyone knows of any studies or articles on this subject I would appreciate your help.

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Tom

#1909

Re: Cigerette Smoke Contamination of PCA's | 14 February, 2000

IBM, Endicott, New York did extensive research on that. There was also some information I think that was published. You may want to contact Howard Manko of Manko & Associates. He's the soldering guru and has written many books on soldering & solderability.

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#1910

Re: Cigerette Smoke Contamination of PCA's | 14 February, 2000

Tobacco smoke is made up of "sidestream smoke" from the burning tip of the cigarette and "mainstream smoke" from the filter or mouth end. Tobacco smoke contains thousands of different chemicals which are released into the air as particles and gases. Many toxins are present in higher concentrations in sidestream smoke than in mainstream smoke and, typically, nearly 85% of the smoke in a room results from sidestream smoke [1]. The particulate phase includes nicotine, "tar" (itself composed of many chemicals), benzene and benzo(a)pyrene. The gas phase includes carbon monoxide, ammonia, dimethylnitrosamine, formaldehyde, hydrogen cyanide, and acrolein. [1] US Surgeon General, "The Health Consequences of Smoking: Chronic Obstructive Lung Disease," USGPO, 1984.

A routine web search provides ample evidence to document that cigarette smoke kills people. Why would you want people to killing themselves and others in your work area?

Ask a volunteer who routinely smokes in his (her) car to: � Spray a paper towel with Windex er something like that. � Clean the inside of his (her) car window with the towel.

Now, you see the effect of smoking on your boards, facility, and employees. Nice brown color eh?

If that�s not enough, IPC/EIA J-STD-001C Paragraph 3.6 states "Eating, drinking, and/or use of tobacco products shall be prohibited in the work area." Risks of eating, drinking, and/or use of tobacco products in the work area are: � Product contamination from spillage and contact. � Human ingestion of process materials.

Good luck

Dave F

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