div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader042fdocumentsusreader042viewer20220404025e84179ad71d5b16f74cb3cbhtml5page1jpg target=_blank img data-url=documentcdn1npcdnnet-2018-07-27-the-design-of-fire-resistant-ductwork-of-all-types-ishtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: cdn1npcdnnet · 2018-07-27 · The design of fire resistant ductwork of all types is described in BS5588 Part 9 BS9999 Various Sections BS476:Part 24 describes the method for loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsusreader042viewer20220404025e84179ad71d5b16f74cb3cbhtml5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader042fdocumentsusreader042viewer20220404025e84179ad71d5b16f74cb3cbhtml5page2jpg target=_blank img data-url=documentcdn1npcdnnet-2018-07-27-the-design-of-fire-resistant-ductwork-of-all-types-ishtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: cdn1npcdnnet · 2018-07-27 · The design of fire resistant ductwork of all types is described in BS5588 Part 9 BS9999 Various Sections BS476:Part 24 describes the method for loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsusreader042viewer20220404025e84179ad71d5b16f74cb3cbhtml5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader042fdocumentsusreader042viewer20220404025e84179ad71d5b16f74cb3cbhtml5page3jpg target=_blank img data-url=documentcdn1npcdnnet-2018-07-27-the-design-of-fire-resistant-ductwork-of-all-types-ishtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: cdn1npcdnnet · 2018-07-27 · The design of fire...