Recognised as Paper size
B8
- 62 × 88 mm
- ISO B
B8 measures 62 × 88 mm, or 2.44 × 3.46 inches. Its aspect ratio is 1.4194:1, close to √2, the property that makes each ISO size two of the next one down.
The canonical address for this page is /paper-b8.
Dimensions
Millimetres62 × 88 mm
Centimetres6.2 × 8.8 cm
Inches2.441 × 3.465 in
Points (72 dpi)175.7 × 249.4 ptthe PostScript/PDF unit
Area0.00546 m²5,456 mm²
Aspect ratio1.41935:1√2 is 1.41421
At common print resolutions
72 dpi176 × 249screen preview
150 dpi366 × 520draft print
300 dpi732 × 1039standard print quality
600 dpi1465 × 2079high quality print
The ISO 216 series
SeriesISO B
Halving ruleCut the long side in half to get the next size downthe √2 ratio is what makes this preserve the shape
Sheets of A4 in this sizeNot applicable
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Also reads as
PaPErB8 (chemical formula)
- Formula
- 515.754 g/mol
- 11 atoms
PaPErB8 has a molar mass of 515.754 g/mol, made up of 11 atoms across 4 elements: 1 × Pa, 1 × P, 1 × Er, 8 × B.
Molar mass
Molar mass515.754 g/mol
Total atoms per molecule11
Distinct elements4
Mass of one molecule8.5642967 × 10^-22 g
Molecules per gram1.1676382 × 10^21
Name
NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show
Composition by mass
Pa44.8%
P6%
Er32.4%
B16.8%
Protactinium (Pa)231.04 g/mol, 44.797%
Phosphorus (P)30.974 g/mol, 6.006%
Erbium (Er)167.26 g/mol, 32.43%
Boron (B × 8)86.48 g/mol, 16.768%
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