DIN ISO 23404 E:2021 信息和文獻 用于保護的紙張和紙板 測量揮發物對紙張纖維素的影響 (ISO 23404:2020) 草案
Draft Document – Information and documentation – Papers and boards used for conservation – Measurement of impact of volatiles on cellulose in paper (ISO 23404:2020); Text in German and English