div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=s3-never-work-alone-no-student-may-work-in-the-laboratory-without-an-instructorhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: s3amazonawscoms3amazonawscomscschoolfiles240safety_contract_2013pdfNever work alone No student may work in the laboratory without an instructor present When first entering loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220421135e8ed722b90db833be20b5c4html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=s3-never-work-alone-no-student-may-work-in-the-laboratory-without-an-instructorhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: s3amazonawscoms3amazonawscomscschoolfiles240safety_contract_2013pdfNever work alone No student may work in the laboratory without an instructor present When first entering loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220421135e8ed722b90db833be20b5c4html5thumbnails2jpg width=140 height=200 divdiv