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asbestos -- Asbestos -- ARB Presentation at Association of Environmental and Engineering Geologists’ Asbestos Symposium held Dec. 18, 2014

Posted: 26 Jan 2015 13:54:42
California Air Resources Board (ARB) staff has posted a
presentation given at the 2014 Naturally Occurring Asbestos
Symposium of the Association of Environmental and Engineering
Geologists held at the Oakland Convention Center on December 18.

The presentation covered topics that are being considered for
ARB’s draft guidance document “Good Field Sampling and Laboratory
Practices – Air Resources Board Test Method 435 Determination of
Asbestos Content of Serpentine Aggregate.”  The presentation can
be found at:  
http://www.arb.ca.gov/toxics/asbestos/tm435/workshops/aegpres.pdf

In lieu of making formal regulatory changes to Test Method 435
(M435), this guidance document is being prepared to assist
laboratories, consultants, local air pollution control districts,
and other stakeholders in the application and performance of
M435.  It is expected that following the guidelines for sample
collection, processing, and analysis specified in this document
will result in more accurate and repeatable M435 asbestos content
measurements for potential asbestos-containing aggregates.  Staff
anticipates finalizing a draft of the guidance document that will
be posted for comments by spring of 2015.

Comments on the December 2014 presentation can be provided to
Rebecca Neumann at (916) 324-1145, or by email at
Rebecca.Neumann@arb.ca.gov.  For additional information on M435,
please visit the Test Method 435 homepage at:  
http://www.arb.ca.gov/toxics/asbestos/tm435/tm435.htm



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