It is designed for verification and calibration of photoelectrocolorimeters, photometers and spectrophotometers of the visible area of the spectrum.
Metrological characteristics:
| 1. Nominal value of the directional transmission coefficient (T) | 1; 5; 10; 30; 50; 75; 90 % | 
| 2. Expanded uncertainty U, % | ± 0,3 % | 
| 3. Expanded uncertainty of the measure of PS -7 U, nm | ± 0,3 nm | 
Delivery set:
- 7 neutral light filters;
- PS-7 measure;
- certificate of calibration.
Contact:
Phone: (044) 526-36-98
(044) 526-11-72
E-mail: 
 Укр
                                                Укр                     Eng
                                                Eng                    