UNE - Spanish national standards

Circular economy — Guidance on the transition of business models and value networks

Available languages: Spanish, English

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LEATHER. DETERMINATION OF NITROGEN CONTENT AND "HIDE SUBSTANCE". TITRIMETRIC METHOD

Available languages: Spanish

Available design: electronic design (pdf), Print design

Leather. Sole leather specifications.

Available languages: Spanish

Available design: electronic design (pdf), Print design

Circular economy — Measuring and assessing circularity performance

Available languages: Spanish, English

Available design: electronic design (pdf), Print design

LEATHER. DETERMINATION OF INNER TANNING

Available languages: Spanish

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LEATHER. DETERMINATION OF TOTAL SILICON CONTENT. REDUCED MOLYBDOSILICATE SPECTROMETRIC METHOD

Available languages: Spanish

Available design: electronic design (pdf), Print design

LEATHER. DETERMINATION OF TOTAL SILICON CONTENT. REDUCED MOLYBDOSILICATE SPECTROMETRIC METHOD

Available languages: Spanish

Available design: electronic design (pdf)

LEATHER. DETERMINATION OF CACHALOT OIL OF LEATHER

Available languages: Spanish

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LEATHER. DETERMINATION OF WATER VAPOUR ABSORPTION AND DESORPTION AND RELATED CHANGES OF DIMENSIONS.

Available languages: Spanish

Available design: electronic design (pdf), Print design

LEATHER. MEASUREMENT OF THE WATER VAPOUR ABSORPTION AND PERMEABILITY. KINETIC TEST.

Available languages: Spanish

Available design: electronic design (pdf), Print design