1.70244

Tungsten standard solution

traceable to SRM from NIST (NH₄)₂WO₄ in H₂O 1000 mg/l W Certipur^®

• Código UNSPSC: 41116107
• NACRES: NA.24

Propiedades

• grado: certified reference material
• Nivel de calidad: 300
• Línea del producto: Certipur^®
• concentración: 1000 mg/L W in water
• técnicas: AAS: suitable
• pH: 6 (20 °C in H₂O)
• densidad: 1.00 g/cm³ at 20 °C
• aplicaciones: industrial qc; pharmaceutical
• Formato: single component solution
• temp. de almacenamiento: 15-25°C

Descripción

Descripción general

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.

Aplicación

Tungsten standard solution can be used as a calibration standard for atomic absorption spectroscopy.

Nota de análisis

1000 mg/L W in water, prepared with high-purity (NH₄)₂WO₄ and water

Otras notas

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

Información legal

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

Información de seguridad

• Código de clase de almacenamiento: 12 - Non Combustible Liquids
• Clase de riesgo para el agua (WGK): WGK 1