1.70244

Tungsten standard solution

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

• 分類程式碼代碼: 41116107
• NACRES: NA.24

属性

• 等級: certified reference material
• 品質等級: 300
• 產品線: Certipur^®
• 濃度: 1000 mg/L W in water
• 技術: AAS: suitable
• pH值: 6 (20 °C in H₂O)
• 密度: 1.00 g/cm³ at 20 °C
• 應用: industrial qc; pharmaceutical
• 格式: single component solution
• 儲存溫度: 15-25°C

说明

一般說明

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.

應用

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

分析報告

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

其他說明

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

法律資訊

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

安全信息

• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: WGK 1