🇨🇿 Puncovní úřad PL
Materials & polymers
Puncovní úřad is a laboratory accredited by ČIA under number 1064 (Praha 1, Czech Republic). Its accreditation scope covers 4 test methods in the following areas: Materials & polymers. Test objects include: Alloys and solutions containing Au, Pt, Pd and Rh, Alloys with gold content 250 - 999 ‰ and nickel content from 20 ‰ t…, Alloys with gold content 250 - 999 ‰ and nickel content up to 20 ‰, Silver alloys soluble in nitric acid. Most frequently used techniques: Cupellation method, ICP-OES method, Potentiometric titration with NaCl.
At a glance
- Accreditation number: ČIA 1064
- Methods in scope: 4
- Types of test objects: 4
- Techniques used: 3
- City: Praha 1, Czech Republic
- Valid until: 20-05-2027
- Accreditation number
- 1064
- Accreditation body
- ČIA
- Address
- Kozí 748/4, 110 00 Praha 1
- City
- Praha 1, Czech Republic
- Division
- Dział Laboratoriów Badawczych Praga i akredytowane laboratorium badawcze
- Valid until
- 20-05-2027
What this laboratory tests (4)
- Alloys and solutions containing Au, Pt, Pd and Rh — 1 method
- Alloys with gold content 250 - 999 ‰ and nickel content from 20 ‰ to 130 ‰ — 1 method
- Alloys with gold content 250 - 999 ‰ and nickel content up to 20 ‰ — 1 method
- Silver alloys soluble in nitric acid — 1 method
Analytical techniques used (3)
- Cupellation method — 2 methods
- ICP-OES method — 1 method
- Potentiometric titration with NaCl — 1 method
Certificate information
- Certificate date
- 16.02.2023
Accreditation scope — test methods (4)
| No. | Test object | Methodology / Parameters | Technique | Reference document | |
|---|---|---|---|---|---|
| Test methods | |||||
| 1 | Alloys with gold content 250 - 999 ‰ and nickel content up to 20 ‰ | Determination of gold | Cupellation method | ZAM 1.1 (ČSN EN ISO 11426:2017, kapitola 7.2) | |
| 2 | Alloys with gold content 250 - 999 ‰ and nickel content from 20 ‰ to 130 ‰ | Determination of gold in white gold alloy with nickel content up to 130 ‰ | Cupellation method | ZAM 1.2 (ČSN EN ISO 11426:2017, kapitola 7.3) | |
| 3 | Silver alloys soluble in nitric acid | Determination of silver | Potentiometric titration with NaCl | ZAM 2.1 (ISO 13756) | |
| 4 | Alloys and solutions containing Au, Pt, Pd and Rh | Determination of gold, platinum, palladium and rhodium Gold Platinum Palladium Rhodium |
ICP-OES method | ZAM 5.9 (ČSN EN ISO 11494; ČSN EN ISO 11495) | |
Reference standards (9)
ISO 13756
ZAM 1.1
ZAM 1.2
ZAM 2.1
ZAM 5.9
ČSN EN ISO 11426:2017, kapitola 7.2
ČSN EN ISO 11426:2017, kapitola 7.3
ČSN EN ISO 11494
ČSN EN ISO 11495