Archival Ring Box Album DIN A4 – Corrugated Board
A tightly closing clamshell box with binding mechanism. Suitable for filing 4-hole, pre-punched envelope enclosures, documents and photographic boards in sheet form.
- 100% bleached cellulose
- without the usage of recycling fibres
- Kappa level < 5 = lignin-free
- pH 7.5 – 10.0 = acid-free in accordance with ISO 6588-1:2012
- alkaline buffer > 2% natural calcium carbonate
- without optical brightening agents
- dirt-resistant and erasable
- Photographic Activity Test (PAT) passed in accordance with ISO 18916:2007
- 4-ring filing mechanism: made of premium quality steel, completely nickel-plated and rust-proof (stainless)
- Int. dimensions: 335 x 320 x 55 mm
- Ext. dimension: 343 x 334 x 60 mm
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