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Merck
모든 사진(1)

Key Documents

1.99017

Supelco

Buffer solution (Potassium dihydrogen phosphate, di-sodium hydrogen phosphate) traceable to SRM from NIST and PTB

pH 6.86 (25 °C in H2O), Certipur®

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About This Item

UNSPSC 코드:
12161706
NACRES:
NA.25

Grade

certified reference material

Quality Level

제품 라인

Certipur®

pH

6.86 (25 °C in H2O)

응용 분야

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

형식

mixture

저장 온도

15-25°C

일반 설명

It is a certified buffer solution of Potassium dihydrogen phosphate & di-sodium hydrogen phosphate, gravimetrically prepared using high-quality reagents at a registered calibration laboratory. It has a pH value of 6.86 at 25°C, measured using a combined glass electrode following a 5-point calibration method. The measurement is made in accordance with DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. The pH value of the buffer solution depends on the temperature and therefore a constant temperature must be maintained during its use.
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.

애플리케이션

The buffer solution is used as a standard in analytical procedures for the calibration of pH measuring instruments or pH electrodes and as a control for the measurement of pH of other solutions.

특징 및 장점

Measured and qualified at an ISO/IEC 17025 and ISO 17034 accredited laboratory Directly traceable to secondary reference standards from NIST and primary certified reference materials from PTB Ready-to-use solution available in 30 mL sachets Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective quality management system Product label follows the ISO Guide 31 and contains information about ordering number, article description, lot number, safety data, and expiry date Packaging material subjected to comprehensive stability studies as per ISO Guide 35

포장

30 ml in Fibre case

법적 정보

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

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


시험 성적서(COA)

제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.

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