Tissue paper and tissue products - Part 15: Determination of optical properties - Measurement of brightness and colour with C/2° (indoor daylight) illuminant (ISO 12625-15:2015); German version EN ISO 12625-15:2015— 18 стр.
Tissue paper and tissue products. Determination of optical properties. Measurement of brightness and colour with C/2$0D (indoor daylight) illuminant— 20 стр.
Tissue paper and tissue products - Part 15: Determination of optical properties - Measurement of brightness and colour with C/2° (indoor daylight) illuminant (ISO 12625-15:2015)