USE CATEGORY SYSTEM USER SPECIFICATION FOR …

U1-21 AMERICAN WOOD PROTEC TION ASSOCIATION STANDARD. 2021 All Rights Reserved U. USE CATEGORY SYSTEM : user SPECIFICATION FOR TREATED WOOD. Adopted: 1999. U1. Revised: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021. This Standard was developed by AWPA's Technical Committees in an open, consensus-based process. Any modifications, deviations, or exceptions to this Standard invalidate any references to this Standard and nullifies any statements of compliance with this Standard. IMPORTANT: Various Federal, State, and Local regulations may govern the use of products or processes standardized by AWPA. The existence of an AWPA Standard for a product or process does not imply that it is lawfully permitted for use in all potential applications . AWPA Standards are not to rv PA d be regarded as legal or other professional advice. NOTE: The user 's attention is called to the possibility that compliance with this standard may require use of an invention covered by patent rights.

fire retardant applications. The Use Category designations are described in detail in Section 2 below. The Use Category system is designed to help specifiers and product users locate the appropriate AWPA Standards that specifies preservatives deemed acceptable for specific products and end-use environments.

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  Applications, User, System, Category, Use category system, Retardant, Use category system user, Retardant applications

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