Historical
ISO 8791-4:1992
Paper and board -- Determination of roughness/smoothness (air leak methods) -- Part 4: Print-surf method
Should be read in conjunction with ISO 8791-1. Applicable to all printing papers and boards with which it is possible to form a substantially airtight seal against the guard lands of the measuring head. Annex A gives a method of calculation of roughness, Annex B specifies maintenance of the roughness testers, Annex D its calibration against ISO reference standards.
CONTENT PROVIDER
International Organization for Standardization [iso]
International Organization for Standardization [iso]
