Method for determination of the roughness of paper and board by the Parker Print-surf apparatusWhat is BS 6563 Roughness of paper and board about? There are several different methods for determining the roughness of paper and board. When paper is intended for letterpress printing, it is desirable to have a measure of the depth of the pits in the paper surface when under the pressures encountered during printing, to indicate the ink film thickness required for a satisfactory result. BS 6563 describes a method for determining the roughness of

It provides a set of requirements for the process of ECD reflecting the contents of IEC Guide 114 and ISO/TR 14062

It applies to both permanently installed and portable systems

general formula for normal lines for the relative partial dispersions for any wavelength pairs

BS EN 15558 provides users guidance on principle

As far as possible the guidance is written in plain English

or liquid in many industries including construction

combed out and the measured fibre strength corresponds with the breaking strength of the longer fibres in the sample

Breakdown voltage

and where result values of BS EN 1367-1 test method do not describe correctly aggregate performance in extreme conditions

Tolerance on form

BS EN 15433 series focuses on measurement and evaluation of dynamic mechanical transportation loads

BS EN 12903 applies to powdered activated carbon used for treatment of water intended for human consumption