1.07203
Certified sec. standard reference buffer solution
di-sodium tetraborate decahydrate, directly traceable to primary SRM from NIST/PTB pH(S) = 9.18₀ (25°C) Certipur®
동의어(들):
di-sodium tetraborate decahydrate buffer solution, pH 9.2 Certified Secondary Buffer Solution
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모든 사진(1)
About This Item
추천 제품
Grade
certified reference material
Quality Level
Agency
complies with DIN 19266
제품 라인
Certipur®
pH
9.2 (25 °C in H2O)
bp
100 °C/1013 hPa
density
1.00 g/cm3 at 20 °C
응용 분야
environmental
food and beverages
general analytical
industrial qc
pharmaceutical
형식
mixture
저장 온도
15-25°C
일반 설명
The certified secondary standard reference buffer solution (di-sodium tetraborate decahydrate) is gravimetrically prepared from high-quality sodium borate in high-purity water. Its pH value is measured by differential potentiometry with two platinum hydrogen electrodes against primary certified reference materials from NIST & PTB. The pH is qualified using the 5-point calibration method, in accordance with 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.
애플리케이션
The buffer solution can be used to calibrate, qualify, and monitor pH measuring instruments and as a control for testing other buffer solutions.
특징 및 장점
- Available in solution format in a secure 100 mL plastic bottle
- Subjected to detailed stability studies as per ISO Guide 35
- Relevant information on product label including order number, article description, lot number, expiry date and safety data, following ISO Guide 31
- Accompanying comprehensive and batch-specific certificate of analysis (CoA) for an effective quality management system
- Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory
- Traceable to SRMs from NIST and primary certified reference standards from PTB
분석 메모
pH-value: 9.180 - 9.186
법적 정보
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
표준
제품 번호
설명
가격
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.
자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
고객지원팀으로 연락바랍니다.