Water triple point cell

Highly accurate
fixed point cells from Ludwig Schneider from Germany

Triple point cell for water by Ludwig Schneider


The water triple point is the most accurately representable fixed point of the 1990 International Temperature Scale (ITS 90). It is 0.01 °C or 273.16 Kelvin. The accuracy is 0.0001 °C. Due to the high thermal equilibrium of this fixed point, the water triple point cell is optimal for high-precision calibration (e.g. e. g. of platinum resistance thermometers).

  • Premium quality directly from the manufacturer

  • Highest quality and precision for over 110 years

  • Accredited DAkkS calibration laboratory

Ludwig Schneider: Manufacturing made in Germany

Quality made in Germany
directly from the manufacturer

Our water triple point cells are made of chemical and temperature resistant borosilicate glass and filled with high purity water after a special chemical treatment. We are the only German manufacturer to produce our water triple point cells ourselves. This allows us to guarantee the highest quality and precision – triple point cells for water “Made by Schneider”.

AEOF-118730 certification for Ludwig Schneider
DIN membership of Ludwig Schneider
ASTM membership of Ludwig Schneider
VGKL membership of Ludwig Schneider
AMA membership of Ludwig Schneider

Unique all-round service by our Ludwig Schneider Messtechnik GmbH

Our DAkkS calibration laboratory is accredited according to DIN EN ISO/IEC 17025:2018 for the measurands temperature and density. We measure temperatures from -196 °C to 1,850 °C and guarantee the highest precision according to all international standards. Together with our extensive product range and our modern calibration laboratory, we offer you a comprehensive all-round service.

DAkkS calibration laboratory Ludwig Schneider Messtechnik

Your satisfaction is our drive

Glasmuseum Wertheim
Glasmuseum Wertheim
21 April 2022
Marianne Tazlari
Marianne Tazlari
11 April 2022
Uwe Schobner
Uwe Schobner
10 März 2021
Sehr kompetente Beratung, vielen Dank
Frank Litke
Frank Litke
17 Dezember 2020

Water triple point cell data sheet

Download datasheet

Download our data sheet with all information of our water triple point cell here!

Water triple point cell technical data

Shown. Temperature0.01 °C (273.16 K)0.01 °C (273.16 K)
Long-term stabilityDrift < 0.1 mK/aDrift < 0.1 mK/a
MaterialBorosilicate glassBorosilicate glass
Filling liquidHigh purity waterHigh purity water
Cell jacket
Outer diameter40 mm50 mm
Length / Total length290 mm / 390 mm290 mm / 390 mm
Insert tube
Inner diameter10 mm10 mm
Traceabilityoptional with
DAkkS calibration certificate
optional with
DAkkS calibration certificate
Item no.5188467059

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