The lements listed below meet the DIN 43760 and IEC 751 specifications, with the Temperature Coefficient of Resistance (T.C.R.) that is .00385 Ohms/Ohm/Degree C. Model TS1023 does not meet these specifications with a T.C.R. of .00375 Ohms/Ohm/Degree C.
DIN 43760 and IEC 751 specification - Tolerance Classifications

Class A
Ro= +/ -0.06%
TCR= .00385 Ohms/Ohm/Degree C +/- 5 ppm/Degree C
Temperature Deviation: +/- 0.15 + 0.002 Degree C
Class B
Ro= +/ -0.12%
TCR= .00385 Ohms/Ohm/Degree C +/- 13 ppm/Degree C
Temperature Deviation: +/- 0.30 + 0.005 Degree C
Class C
Ro= +/ -0.24%
TCR= .00385 Ohms/Ohm/Degree C +/- 13 ppm/Degree C
Temperature Deviation: +/- 0.60 + 0.007 Degree C

Closer tolerances of Ro are available please inquire.

Elements with other resistance values, Temperature coefficients and sizes are available.
Temperature range : -200 Deg. C to +550 Deg. C
The P series of RTD´s above meet the requirements of IEC751 and DIN 43760 as below

Class A
Ro= +/ -0.06%
TCR= .00385 Ohms/Ohm/Degree C +/- 5 ppm/Degree C
Temperature Range= -100 Deg. C to +400 Deg.C
Class B
Ro= +/ -0.12%
TCR= .00385 Ohms/Ohm/Degree C +/- 13 ppm/Degree C
Temperature Range= -200 Deg. C to +550 Deg.C
Class C
Ro= +/ -0.24%
TCR= .00385 Ohms/Ohm/Degree C +/- 13 ppm/Degree C
Temperature Range= -200 Deg. C to +550 Deg.C

Closer tolerances of Ro are available please inquire.