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Browsing the blog archives for November, 2009.
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A New Standard for Bump Resistance

Nov 26, 2009
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The ASTM, (American Society for Testing and Materials), organization has updated their standard F883 to a 09 version.  The revisions constitute a new test for bump resistance in pin tumbler cylinders.  Such a standard testing method has been needed for some time now.  Many manufacturers tell locksmiths that their products are bump resistant but there is little qualification of how much resistance is provided.

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