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BX16281

Supelco

Buffer pH 4.0 Red

certified reference material

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About This Item

UNSPSC Code:
41116107
Pricing and availability is not currently available.

grade

certified reference material

Quality Level

300

CofA

current certificate can be downloaded

packaging

pkg of 500 mL

application(s)

environmental
environmental
food and beverages
general analytical
industrial qc

format

mixture

storage temp.

15-25°C

General description

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.

Application

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

Features and Benefits

  • 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

Packaging

500 ml in Plastic bottle, 20L, 4L

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

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Questions

  1. Is there any information available regarding measured pH values outside of 25 °C for pH buffer Certified Reference Materials with corresponding catalog numbers of the format BX16### or EM018#?

    1 answer

    1. The certified values (and associated uncertainties) provided in the Certificates of Analysis for pH buffer Certified Reference Materials with catalog numbers of the format BX16### or EM018# are exclusively valid at 25 degrees Celsius.
      The relative effects of temperature on measured pH values are not measured and reported for every batch of these products.

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