Salt Solution Standard
ROTRONIC humidity standards are delivered in packs of five ampoules of the same humidity value. Every ampoule is marked with its humidity value and a serial number. The most frequently used values are 35 and 80 % rh, which are used for two-point calibrations. All ampoules except for the 0 % rh standard contain an unsaturated salt solution; the 0 % rh standard consists of a highly porous molecular sieve. An SCS certificate documenting traceability to national standard and specifying the uncertainty of the humidity standard is enclosed with every pack. The different national agencies for metrology recognise each others' certificates reciprocally through the ILAC Mutual Recognition Agreement. As a result, an instrument calibration certificate from Switzerland (SCS) is accepted worldwide by local certification bodies.
Product Description
Delivery:
Order Information
| Order code |
Humidity value |
Uncertainty at 23 ± 2°C |
| EA00-SCS |
0.5 % rh |
± 0.1 % rh |
| EA05-SCS |
5.0
% rh |
± 0.1 % rh |
| EA10-SCS |
10.0 % rh |
± 0.3 % rh |
| EA11-SCS |
11.3 % rh |
± 0.3 % rh |
| EA20 SCS |
20.0
% rh |
± 0.3 % rh |
| EA35-SCS |
35.0 % rh |
± 0.5 % rh |
| EA50-SCS |
50.0 % rh |
± 0.9 % rh |
| EA65-SCS |
65.0
% rh |
± 0.9 % rh |
| EA75-SCS |
75.3 % rh |
± 0.9 % rh |
| EA80-SCS |
80.0 % rh |
± 1.2 % rh |
| EA95-SCS |
95.0
% rh |
± 1.2 % rh |
