Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board; German version EN 648:2018— 12 стр.
Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at ambient temperature in air atmospheric pressure - Determination of elastic properties by ultrasonic technique (ISO 18610:2016)
Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board; German and English version prEN 648:2017