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Standards & abbreviation

Standard tests for paper, test parameters and units of measurement

Property Unit Standard method
Grammage or paper weight
Basis weight (US)
g/m2
lbs/ft2
ISO 536, DIN EN 20 
536
T 410
Thickness
Strenghts
μm
mils = .001 inch.
ISO 534, DIN EN 20
534
T 411
Bulk (specific volume) cm3/g ISO 534
Density,
apparent Density
g/cm3 or kg/mt ISO 534, DIN EN
20534
Brightness ISO
Brightness D65
Brightness as per TAPPI
%
%
%
ISO 2470
no norm
T 452
CIE- Whiteness (C/2°)
CIE- Whiteness (D65/10°)
- ISO 11 476
ISO 11 475
L*, a*, b* (C/2°)
L*, a*, b* (D65/10°)
L*, a*, b* (C/2°) TAPPI
-
-
-
ISO 5631, DIN 6174
DIN 6174
T 524
Y value (C/2°)
Y value (D65/10°)
%
%
ISO 2471, DIN 53 140
DIN 53 140
Opacity
Opacity TAPPI
%
%
ISO 2471, DIN 53 146
T 425
Gloss, Hunter
Gloss, Lehmann
%
%
ISO 8254-1, T 480
ISO 8254-2
Roughness Bendtsen 1.47 kPa
Roughness PPS 1 MPa
ml/min
μm
ISO 8791-2
ISO 8791-4,
DIN ISO 8791-4, T555 
Surface strength m/s ISO 3783
Tensile strength kN/m ISO 1924-2, DIN EN 1924-2,
T 494
Stretch at break,
along and crosswise
to running direction
% ISO 1924-2, DIN EN 1924-2,
T 494

 Tear strength

mN
gf
ISO 1974
T 414
Scott bond strength J/m2 T 569
Bending strength mNm or kNm or μm
Nmm
ISO 5628
DIN 53121
Moisture % ISO 287

 

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