Editing Corrugated fiberboard (section)

==Properties==
Several properties and characteristics can be measured for corrugated board.  Some of these include:
* '''Moisture content''' ranges from 6.5 to 9.5%. If moisture is below a certain limit it will cause cracking in corrugated board and if it is above then it will reduce the compression strength of board.
* [[Edge crush test]] measures force per unit width and predicts Box compression strength. It is reported in KN/m or lb/inch.
* '''Burst strength''' is the pressure required to rupture corrugated sheet. It is reported in KPa or lb/inch2. 
* '''Box Compression strength''' is the direct measurement of performance of corrugated boxes. It is reported in kgf or N.
* '''Flat crush test''' measures flutes rigidity and reported in KPa.
* '''Bending resistance'''
* '''Impact resistance'''
* '''Cushioning, shock absorption'''<ref name="Stern Jordan 1973">{{cite book |last1=Stern |first1=R. K. |last2=Jordan |first2=C. A. |title=Shock cushioning by corrugated fiberboard pads to centrally applied loading |series=USDA Forest Service research paper FPL ;184 |publisher=U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory |publication-place=Madison, WI |year=1973 |hdl=2027/umn.31951d02889755h |oclc=679616409 |url=https://hdl.handle.net/2027/umn.31951d02889755h |via=HathiTrust |access-date=18 March 2023 |archive-date=27 April 2012 |archive-url=https://web.archive.org/web/20120427042950/https://www.fpl.fs.fed.us/documnts/fplrp/fplrp184.pdf |url-status=dead }}Also archived at</ref>
* '''Tear resistance'''
* '''[[Grammage]]''' is the weight per meter square of any material. It is reported in g/m2

Corrugated fiberboard is [[anisotropic]]; many of its properties are highly directional.  For example, edge crush, bending stiffness, tensile, and surface characteristics are different, depending on the orientation to the flutes and the machine direction of manufacture.