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Standard tests for paper, test parameters and units of measurement

PropertyUnitStandard method
Grammage or paper weight
Basis weight (US)		g/m2
lbs/ft2		ISO 536, DIN EN 20 536
T 410
Thickness
Strength		μm
mils = .001 inch.		ISO 534, DIN EN 20534
T 411
Bulk (specific volume)cm3/gISO 534
Density,
apparent Density		g/cm3 or kg/mtISO 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 strengthm/sISO 3783
Tensile strengthkN/mISO 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 strengthmN
gf		ISO 1974
T 414
Scott bond strengthJ/m2T 569
Bending strengthmNm or kNm or μm
Nmm		ISO 5628

DIN 53121
Moisture%ISO 287