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等级
certified reference material
质量水平
CofA
current certificate can be downloaded
包装
pkg of 500 mL
应用
environmental
environmental
food and beverages
general analytical
industrial qc
包装形式
mixture
储存温度
15-25°C
一般描述
This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI and higher-order standards from NIST through a continuous chain of comparisons. It is prepared using qualified and calibrated balances that comply with ISO 17025 requirements.
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.
应用
The pH 4.0 Red buffer reference standard is suitable for:
- Calibration of pH meters and electrodes
- Quality control of pH measurements
- Analytical method development and validation
特点和优势
- Solution that is stable, ready to use, and have long minimumshelf life
- Available in asealed bottle with convenient packaging to protect against contamination
- Accompanied witha certificate of analysis (CoA) for an effective audit
- Achieve precisepH control with this solution, ensuring accuracy in experiments
- Reliable andreproducible results for consistent outcome
包装
500 ml in Plastic bottle, 20L, 4L
储存分类代码
12 - Non Combustible Liquids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
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