grade
certified reference material
Quality Level
description
RTECS - CV6260000
product line
Certipur®
pH
4.0 (25 °C in H2O)
application(s)
PFAS testing
environmental
food and beverages
general analytical
industrial qc
pharmaceutical
format
mixture
storage temp.
10-30°C
유사한 제품을 찾으십니까? 방문 제품 비교 안내
General description
The certified potassium hydrogen phthalate buffer solution is gravimetrically prepared using high-quality reagents at a registered calibration laboratory. It has a pH value of 4.01 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 heavily 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.
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.
Application
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.
Features and Benefits
- Measured and qualified at an ISO/IEC 17025 and ISO 17034 accredited laboratory
- Directly traceable to secondary reference standard from NIST and primary certified reference standard 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
- Accurate up to +/- 0.02 at 25°C
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
저장 등급
12 - Non Combustible Liquids
wgk
WGK 1
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.
관련 콘텐츠
Discover our complete solutions: Reliable products and precision tools to more accurately quantify PFAS compounds in diverse samples including water, wastewater, soil, food, blood, etc.
전체 솔루션을 알아보세요. 신뢰할 수 있는 제품과 정밀한 툴로 물, 폐수, 흙, 식품, 혈액 등이 포함된 다양한 샘플에서 PFAS 화합물의 양을 더욱 정확하게 측정할 수 있습니다.
국제 무역 품목 번호
| SKU | GTIN |
|---|---|
| 1.99001.0001 | 04022536733142 |
자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
고객지원팀으로 연락바랍니다.