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Teledyne Monitor Labs is a leading supplier of environmental monitoring
instrumentation, systems and software

 
Teledyne Monitor Labs
Opacity Attenuator (Filter) Certification Service
 

From the opacity industry leader...
an easy, inexpensive and painless way to keep your opacity filters certified
 

Teledyne Monitor Labs makes it easy and inexpensive for you to keep your opacity attenuators (filters) certified.  Teledyne Monitor Labs offers Opacity Filter Certification Services for all major opacity monitors.  This service will help you meet the requirements of 40CFR60 Appendix B, Performance Specification 1. 
Our state-of-the-art facilities ensures accuracy of your neutral density opacity filters by using NIST traceable standards.
 
 

40CFR60 Appendix B, Performance Specification 1 requires opacity attenuators be calibrated semi-annually

  

For all your CEMS Support needs,
contact us at:

1-800-846-6062
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35 Inverness Drive East - Englewood, CO 80112