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| alkalihaltiges Papier; haltbar (durable paper; A phrase usually applied to papers with a neutral or alkaline pH); langfristig (durable paper; A phrase usually applied to papers with a neutral or alkaline pH); permanent (durable paper; A phrase usually applied to papers with a neutral or alkaline pH); säurefreies Papier | |||
| alterungsbeständiges Papier | |||
| säurebeständiges Papier | |||