Physical Property Standards

Buffer Standards

Conductance Standards

MS Markers

Buffer Standard Solutions

Buffer Standard solutions requiring rapid availability and high accuracy of the compounds.
Reliable quality, standard-specific certification, high accuracy and a fast delivery service are the hallmark of Sigma-Aldrich products.

Our product range encompasses Buffer Standard Solutions according to the guideline DIN 19266.

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Conductance Standard Solutions

Electrical conductivity can be used to monitor the quality of

• surface waters
• process waters in water supply plants and
• waste waters

The International Organisation for Standardization (ISO) specifies in guideline ISO7888 a method for the measurement of electrical conductivity of all types of water. For this method, 3 conductance standard A, B, C solutions are required. Fluka's conductance standard solutions are prepared according to this guideline. Furthermore, the conductivity measuring equipment is calibrated with standard solutions which are traceable to NIST standards.

Conductance Standard Solutions according ISO 7888