R 18-1997 Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories (Nineteenth Edition)
2018R 18-2018 Standard Recommended Practice for Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories
2017R 18-2017 Standard Recommended Practice for Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories
2016R 18-2016 Standard Recommended Practice for Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories
2010R 18-2010 Standard Recommended Practice for Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories
2008R 18-2008 Standard Recommended Practice for Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories
2006R 18-2006 Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories
2005R 18-2005 Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories
2004R 18-2004 Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories
2001R 18-2001 Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories
1997R 18-1997 Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories (Nineteenth Edition)
1993R 18-1993 Standard Recommended Practice for Establishing and Implementing a Quality System for Construction Materials Testing Laboratories (Eighteenth Edition)