WPI-g-00071740–120 g/m²Virgin kraft45% confidence
Basic Brown Dye (Bismarck Brown).
Other paper grade. Permanent ID WPI-g-000717 — verified, source-traced, free.
GSM 25
25g/m²
lighter
GSM 40 · this
40g/m²
WPI-g-000717 · standard
GSM 70
70g/m²
heavier
01
Canonical specification
Basis weight
40–120g/m²
Fiber source
Virgin kraft
other
Paper type
other
Confidence
45%
source: wpi
WPI ID
WPI-g-000717
Slug
basic-brown-dye-bismarck-brown
Last updated
2026-04-18
GSM range
40–120g/m²
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