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NF G52-047 ; NF EN ISO 22700:2019-04-17
Leather - Measurement of the colour and colour difference of finished leather
Edition
2019-04-17
NF G52-214 ; NF EN ISO 4045:2018-06-06
Leather - Chemical tests - Determination of pH and difference figure
Edition
2018-06-06
NF V04-034 ; NF ISO 26462:2010-07-01
Milk - Determination of lactose content - Enzymatic method using difference in pH
Edition
2010-07-01
NF T37-001-22 ; NF EN 13523-22:2024-04-24
Coil coated metals - Test methods - Part 22: colour difference - Visual comparison
Edition
2024-04-24
SN EN ISO 22700
Leather - Measuring the colour and colour difference of finished leather (ISO 22700:2019)
Edition
2019-11
SN EN 13523-22
Coil coated metals - Test methods - Part 22: Colour difference - Visual comparison
Edition
2024-05
ISO 22700 ; IULTCS/IUF 474:2019-03
Leather - Measuring the colour and colour difference of finished leather
Edition
2019-03
ISO 4045 ; IULTCS/IUC 11:2018-05
Leather - Chemical tests - Determination of pH and difference figure
Edition
2018-05
ISO 26462 ; IDF 214:2010-06
Milk - Determination of lactose content - Enzymatic method using difference in pH
Edition
2010-06
BS EN ISO 14637
Milk. Determination of urea content. Enzymatic method using difference in pH (Reference method)
Edition
2004-10-21
