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Previous by Date: Subject: Re: [DCHAS-L] Help with terminology Date: June 26, 2013 2:11:51 PM EDT Author: Laurence Doemeny |
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Hi Scott,
Much thanks for your email !
I will discussed these points with the engineers and architects.
Once again, much thanks for your time and kind collaboration.
Cheers
__________________________________________
Olivier LEOGANE, Ph.D, Conseiller
Gestion des matie`res dangereuses, Risques chimiques
DPS - Division Sante´ et Se´curite´ au travail
Bureau F-505 - Pavillon Roger Gaudry
tel : (514)343-6111 poste 2824
courriel : o.leogane**At_Symbol_Here**umontreal.ca
Page web: www.dps.umontreal.ca
Avis de confidentialite´ : Ce document e´lectronique (incluant tout fichier ou e´le´ment qui y est joint) est destine´ uniquement a` la personne ou a` l'entite´ a` qui il est adresse´. Il peut contenir de l'information prote´ge´e ou des renseignements confidentiels assujettis au secret professionnel. Si vous avez reçu ce document par erreur, veuillez le de´truire et avoir l'obligeance de communiquer avec moi, afin que j'apporte les correctifs requis. Toute distribution, reproduction ou autre utilisation de ce document par un destinataire non vise´ est interdite.
-----Message d'origine-----
De : DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**med.cornell.edu] De la part de GOODE, SCOTT
Envoye´ : 19 juin 2013 17:57
A` : DCHAS-L**At_Symbol_Here**med.cornell.edu
Objet : Re: [DCHAS-L] Laser lab design - Vibration concerns
Olivier,
It is best to have vibration-sensitive instruments in a basement but a poured concrete building is almost as stable.
Vibration measurements are done with a calibrated accelerometer and have units of velocity (microns/s) in the three Cartesian axes. The specifications are supplied by the equipment manufacturer, the maker of an atomic force microscope in our case.
The manufacturer's maximum building velocity was 3 microns/s p-p and the vibration frequency spectrum had to be less than the VC-D. standard. We also measured the acoustic noise against the manufacturer's standard of NC-45.
Scott Goode
--------------------------------------------------------
Scott Goode, Professor
Department of Chemistry and Biochemistry University of South Carolina
631 Sumter Street
Columbia SC 29208
Email: Goode**At_Symbol_Here**sc.edu
Phone: 803-777-2601
Fax: 803-777-9521
-----Original Message-----
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Leogane Olivier
Sent: Tuesday, June 18, 2013 9:38 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: [DCHAS-L] Laser lab design - Vibration concerns
Hi all,
Any of you know the vibration criteria used in their building? Depending on the type of research, for example, if you are using laser or vibration sensitive equipment, which vibration criteria has been chosen?
And more importantly, why is this level have been chosen? Is it better, regarding you experience, to have a building with low-level of vibration or to buy a better optic table (cost vs effectiveness)
Best regards,
__________
Olivier Leogane, Ph.D.
EHS Officer, Chemical safety
University of Montre´al
Tel: 514-343-6111 ext 2824
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