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Merck
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主要文書

1.07294

Supelco

Buffer solution

di-sodium hydrogen phosphate/potassium dihydrogen phosphate, traceable to NIST, traceable to PTB, pH 6.88 (20 °C), Certipur®

別名:

di-sodium hydrogen phosphate/potassium dihydrogen phosphate buffer, pH 6.88 calibration standard solution

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About This Item

UNSPSCコード:
12161706
NACRES:
NA.25

グレード

certified reference material

品質水準

300

認証

traceable to NIST
traceable to PTB

製品種目

Certipur®

組成

di-sodium hydrogen phosphate/potassium dihydrogen phosphate

pH

6.88 (20 °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

Certipur® buffer solution [di-sodium hydrogen phosphate/potassium dihydrogen phosphate buffer; pH 6.88 (20 °C)] is intended for use as a calibration standard for pH instruments or pH electrodes or as a control sample for measuring the pH value.

The ready-to-use Certipur® buffer solutions are prepared gravimetrically in our ISO/IEC 17025 accredited calibration laboratory from high-purity salts, acids and bases diluted in high-purity water. All balances are regularly calibrated with analytical weight sets traceable to primary standard reference materials from NIST and PTB. The pH-value is measured to the highest precision using a combined glass electrode after 5-point calibration (according to DIN 19268) against reference buffer solutions (according to DIN 19266, IUPAC, NIST, Ph.Eur. and USP).
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.

特徴および利点

  • Compliant: Produced according to EP and USP guidelines
  • Secure: Tested in our ISO 17025 accredited calibration laboratory
  • Ready for audits: Detailed certificate of analysis for every product
  • Convenient: Simply open the pack for quick, accurate pH calibration

法的情報

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

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。

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