Versions of Missouri Laws 643.240 - Friable material subject to regulation -- air sample analysis, how conducted on LawServer 2023 Missouri Laws 643.240 – Friable material subject to regulation — air sample analysis, how conducted 2022 Missouri Laws 643.240 – Friable material subject to regulation — air sample analysis, how conducted. 2020 Missouri Laws 643.240 – Friable material subject to regulation — air sample analysis, how conducted. 2018 Missouri Laws 643.240 – Friable material subject to regulation — air sample analysis, how conducted. 2016 Missouri Laws 643.240 – Friable material subject to regulation–air sample analysis, how conducted 2015 Missouri Laws 643.240 – Friable material subject to regulation–air sample analysis, how conducted 2014 Missouri Laws 643.240 – Friable material subject to regulation–air sample analysis, how conducted 2013 Missouri Laws 643.240 – Friable material subject to regulation–air sample analysis, how conducted 2009 Missouri Laws 643.240 – Friable material subject to regulation–air sample analysis, how conducted