Tagasi

EVS-EN ISO 11426:2016

Jewellery - Determination of gold in gold jewellery alloys - Cupellation method (fire assay) (ISO 11426:2014)

Üldinfo
Kehtiv alates 01.11.2016
Alusdokumendid
ISO 11426:2014; EN ISO 11426:2016
Tegevusala (ICS grupid)
39.060 Juveelitooted
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
Põhitekst
prEN ISO 11426
01.11.2016
Põhitekst
01.01.2000
Põhitekst
ISO 11426:2014 specifies a cupellation method (fire assay) for the determination of gold in gold jewellery alloys. The gold content of the alloys should preferably lie between 333 and 999 parts per thousand (?). The procedure is applicable specifically to gold alloys incorporating silver, copper, and zinc. Some modifications are indicated where nickel and/or palladium are present in the so-called white gold alloys, as well as for alloys containing 990 or more parts per thousand (?) of gold. ISO 11426:2014 is intended to be used as the recommended method for the determination of fineness in alloys covered by ISO 9202.
*
*
*
PDF
9,61 € koos KM-ga
Paber
9,61 € koos KM-ga
Hind: 2,40 € koos KM-ga
Standardi monitooring
Teised on ostnud veel
Põhitekst

EVS-EN ISO 11427:2016

Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:2014)
Uusim versioon Kehtiv alates 01.11.2016
Põhitekst

EVS-EN ISO 11490:2016

Jewellery - Determination of palladium in palladium jewellery alloys - Gravimetric determination with dimethylglyoxime (ISO 11490:2015)
Uusim versioon Kehtiv alates 01.11.2016
Põhitekst

ISO 13756:2015

Jewellery -- Determination of silver in silver jewellery alloys -- Volumetric (potentiometric) method using sodium chloride or potassium chloride
Uusim versioon Kehtiv alates 20.01.2015