ČSN - Czech national standards

Precious metals - The finenesses of solders used with precious metal jewellery alloys

Available languages: Czech

Available design: Print design

Ušlechtilé kovy - Ryzosti pájek užívaných pro klenotnické slitiny ušlechtilých kovů (Norma k přímému použití jako ČSN).

Available design: Print design

Jewellery - Ring sizes - Definition, measurement and designation (ISO 8653:1986)

Available design: Print design

Jewellery - Consumer confidence in the diamond industry

Available languages: English

Available design: Print design

Body-piercing post assemblies - Reference test method for determination of nickel content by flame atomic absorption spectrometry

Available languages: Czech

Available design: Print design

Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin

Available languages: English

Available design: Print design

Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin

Available design: Print design

Reference test method for release of nickel from products intended to come into direct and prolonged contact with the skin

Available design: Print design

Reference test method for release of nickel from products intended to come into direct and prolonged contact with the skin

Available design: Print design

Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin

Available design: Print design