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The purpose and scope of this guide was to present background material and to establish criteria by which protocols and procedures for conducting the L5178Y/TK+/−-3.7.2C mouse lymphoma mutagenicity assay (commonly referred to as the mouse lymphoma assay, (MLA)) could be properly understood and evaluated.
Formerly under the jurisdiction of Committee F04 on Medical and Surgical Materials and Devices, this guide was withdrawn in November 2014. This standard is being withdrawn without replacement due to its limited use by industry.
1.1 The purpose and scope of this guide is to present background material and to establish criteria by which protocols and procedures for conducting the L5178Y/TK+/−-3.7.2C mouse lymphoma mutagenicity assay (commonly referred to as the mouse lymphoma assay, (MLA)) can be properly understood and evaluated. This guide is also intended to aid researchers and others to gain a better understanding of the critical elements involved with mammalian cell mutagenicity testing. More specifically, this guide is intended to provide for researchers the accomplishment of the following goals:
1.1.1 Provide an understanding of the critical procedures (steps) in the performance of this mammalian cell mutagenicity test.
1.1.2 Provide generalized criteria by which researchers can evaluate if they are properly performing, utilizing, and interpreting this assay.
1.1.3 Provide criteria by which individuals responsible for evaluating MLA data can determine if the experiments have been properly performed and interpreted.
1.1.4 Provide a basis from which new procedures and developments in testing procedures can be evaluated.
1.1.5 Provide an understanding of the types of genetic damage (that is, gene and chromosome mutation) that may be detected in this mammalian cell mutagenicity test.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
ASTM E1280-97(2008), Standard Guide for Performing the Mouse Lymphoma Assay for Mammalian Cell Mutagenicity (Withdrawn 2015), ASTM International, West Conshohocken, PA, 2008, www.astm.orgBack to Top