JWB - Self-adhesive (archive) labels Self-adhesive (archive) labels. Acid-free self-adhesive labels in archive quality, made of 80 g/m² cotton linter paper. PH-value approx. 8.5 (warm extraction measurement) and buffered with calcium carbonate. The adhesive meets the ICN standard and is suitable for laser printers. Overall sheet size: 210 x 299 mm. Packed per 100 sheets and ...