おすすめの製品
グレード
certified reference material
品質水準
認証
complies with DIN 19266
製品種目
Certipur®
組成
potassium dihydrogen phosphate/di-sodium hydrogen phosphate
pH
7.41 (25 °C)
アプリケーション
environmental
food and beverages
general analytical
industrial qc
pharmaceutical
フォーマット
mixture
保管温度
15-25°C
詳細
The certified secondary standard reference buffer solution of potassium dihydrogen phosphate/disodium hydrogen phosphate is gravimetrically prepared using high-quality reagents in high-purity water. Its pH value is analyzed by differential potentiometry with two platinum hydrogen electrodes against primary certified reference materials from NIST & PTB. Also, the pH analysis uses the 5-point calibration method, following DIN 19268, against certified primary reference standards as per DIN 19266.
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.
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.
アプリケーション
The buffer solution can be used for the calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.
特徴および利点
- Available in solution format in a secure 100 mL high-density plastic bottle
- Subjected to detailed stability studies as per ISO Guide 35
- Product label having relevant information on order number, article description, lot number, expiry date and safety data, in accordance with ISO Guide 31
- Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective quality management system
- Measured and qualified in ISO/IEC 17025 and ISO 17034 accredited laboratory
- Traceable to SRMs from NIST and primary certified reference standards from PTB
アナリシスノート
pH-value: 7.414 - 7.420
For complete data see the enclosed certificate
For complete data see the enclosed certificate
法的情報
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
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Standard
製品番号
詳細
価格
保管分類コード
12 - Non Combustible Liquids
WGK
nwg
引火点(°F)
Not applicable
引火点(℃)
Not applicable
試験成績書（COA）
製品のロット番号・バッチ番号を入力して、試験成績書（COA） を検索できます。ロット番号・バッチ番号は、製品ラベルに「Lot」または「Batch」に続いて記載されています。
ライフサイエンス、有機合成、材料科学、クロマトグラフィー、分析など、あらゆる分野の研究に経験のあるメンバーがおります。.
製品に関するお問い合わせはこちら（テクニカルサービス）