Leather - Chemical tests - Determination of water-soluble matter, water soluble inorganic matter and water-soluble organic matter (ISO 4098:2006); German version EN ISO 4098:2006— 12 стр.
Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter (ISO 4098:2018); German version EN ISO 4098:2018— 11 стр.
Testing of leather; determination of the contents of organic and inorganic materials extractable by washing out (loss of weight by washing out)— 3 стр.
Testing of leather; determination of the contents of organic and inorganic materials extractable by washing out (loss of weight by washing out)— 3 стр.
Leather - Chemical tests - Determination of matter soluble in dichloromethane and free fatty acid content (ISO 4048:2008); German version EN ISO 4048:2008— 11 стр.
Leather - Chemical tests - Determination of water-soluble matter, water-soluble inorganic matter and water-soluble organic matter (ISO 4098:2018); German version EN ISO 4098:2018— 11 стр.