div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentimg43-gb-4208-20081ec-60529-2001-725-gbt-311-22002-iec-60071-21996htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: img43chem17comimg43chem17com520100907634194552523247500pdf · gb 4208 —20081ec 60529 : 2001 725 gbt 311 2—2002 iec 60071- 2=1996 gbt 2421— 1999 iec 60068-1:1988 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentpubreader033viewer20220524075bb0241809d3f2830e8b5846html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentimg43-gb-4208-20081ec-60529-2001-725-gbt-311-22002-iec-60071-21996htmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: img43chem17comimg43chem17com520100907634194552523247500pdf · gb 4208 —20081ec 60529 : 2001 725 gbt 311 2—2002 iec 60071- 2=1996 gbt 2421— 1999 iec 60068-1:1988 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentpubreader033viewer20220524075bb0241809d3f2830e8b5846html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentimg43-gb-4208-20081ec-60529-2001-725-gbt-311-22002-iec-60071-21996htmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: img43chem17comimg43chem17com520100907634194552523247500pdf · gb 4208 —20081ec 60529 : 2001 725 gbt 311 2—2002 iec 60071- 2=1996 gbt 2421— 1999 iec 60068-1:1988 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentpubreader033viewer20220524075bb0241809d3f2830e8b5846html5thumbnails3jpg width=140 height=200 divdivdiv...