1.07200
Certified sec. standard reference buffer solution
potassium hydrogen phthalate, directly traceable to primary SRM from NIST/PTB pH (S) = 4.005 (25°C) Certipur®
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크기 선택
보기 변경
제품정보 (DICE 배송 시 비용 별도)
NACRES:
NA.25
UNSPSC Code:
41116107
Quality Level
storage temp.
15-25°C
General description
The certified secondary standard reference buffer solution of potassium hydrogen phthalate is gravimetrically prepared using a high-quality reagent 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 5-point calibration method is used for its pH qualification, 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.
Application
The buffer solution finds its use in calibration, qualification, and monitoring of pH measuring instruments and as a control for testing other buffer solutions.
Features and Benefits
- Available in a tamper-proof 100 mL plastic bottle in solution format
- Subjected to detailed stability studies as per ISO Guide 35
- Product label containing 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
Analysis Note
pH-value: 4.005 - 4.011
For complete data see the enclosed certificate
For complete data see the enclosed certificate
Legal Information
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
저장 등급
12 - Non Combustible Liquids
wgk
WGK 2
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.
국제 무역 품목 번호
| SKU | GTIN |
|---|---|
| 1.07200.0105 | 04022536748641 |