1.70230

Potassium standard solution

traceable to SRM from NIST KNO₃ in HNO₃ 0.5 mol/l 1000 mg/l K Certipur^®

• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 300
• agency: suitable for EPA 200.7
• product line: Certipur^®
• technique(s): AAS: suitable; ICP: suitable
• pH: 0.5 (20 °C in H₂O)
• density: 1.013 g/cm³ at 20 °C
• application(s): industrial qc; pharmaceutical
• format: single component solution
• storage temp.: 15-25°C

Description

General description

This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI unit kg and measured against primary material from a National Metrology Institute (NMI), e.g. NIST.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Application

Potassium standard solution may be used as a calibration standard for atomic absorption spectroscopy.

Analysis Note

1000 mg/L K in 0.5 mol/L HNO₃, prepared with high-purityKNO₃, HNO₃, and water

Other Notes

For a complete product listing of our Certipur^® range of CRMs for ICP and AAS, technical information, and example certificates please visit our ICP & AAS standards website

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS05
• signalword: Warning
• hcodes: H290 - H315 - H319
• pcodes: P234 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2
• Storage Class: 8A - Combustible, corrosive hazardous materials
• wgk_germany: nwg