WPI-g-00033820–50 g/m²Virgin kraft44% confidence
Acid Dye.
Other paper grade. Permanent ID WPI-g-000338 — verified, source-traced, free.
GSM 5
5g/m²
lighter
GSM 20 · this
20g/m²
WPI-g-000338 · standard
GSM 50
50g/m²
heavier
01
Canonical specification
Basis weight
20–50g/m²
Fiber source
Virgin kraft
other
Paper type
other
Confidence
44%
source: wpi
WPI ID
WPI-g-000338
Slug
acid-dye
Last updated
2026-04-18
GSM range
20–50g/m²
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