Smaller Uncertainties for the Cal Lab

Isotech’s Northern Temperature Primary Laboratory (NTPL) achieves even smaller uncertainties, again!
A purpose of NTPL is to inter-compare fixed point cell and to calibrate SPRTs. SPRTs have definite limitations due to variations in the oxide state of the platinum. Changes of up to 1mK occur at the water triple point temperature after large temperature excursions of an SPRT. Reference Isotech Journal of Thermometry Vol 5 Issue 1. However if an SPRT is used over a limited range, from minus 40°C to plus 30°C it can remain very stable. In reviewing our uncertainties we felt it was worth reducing the uncertainties at the Mercury Triple Point, the Water Triple Point and the Gallium Triple Point, since calibrations with uncertainties smaller then 1mK can be maintained. Our new UKAS Schedule, 31st March 04, reflects our desire to offer clients the best service available. At Mercury, Water and Gallium Triple points NTPL have uncertainties second only to NIST

Latest UKAS Schedule

E-Learning Launched

Isotech is widely recognised as a leading provider of training for temperature calibration. Isotech introduced a new course in 2003. This course runs periodically in the UK and in other countries around the world.For those not able to attend in person Isotech now offer the course as an E-learning opportunity. The online E-learning brings real benefits covering a wide range of topics. The first module is free!

Learn more, www.isotech.co.uk/elearning

Databook 5 Published