# The Good Laboratory Practice Regulations 1997, Paragraph 9: Physical and chemical systems


The inspector should check that—
where required by study plans, the stability of test and reference substances were determined and that the reference substances specified in test plans were used,
standard operating procedures exist to cover laboratory activities and that their provisions are observed,
in automated systems, data generated as graphs, recorder traces or computer print-outs are documented as raw data and archived.

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Source: https://www.legislation.gov.uk/uksi/1997/654/schedule/2/paragraph/9 (the official version)
Page: https://openlegislation.uk/good-laboratory-practice-regulations-1997/schedule-2/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.