The Optical Calibration Laboratory offers non-fluorescent IR3 standards for the calibration of the reflectance factor and fluorescent IR3 standards for the adjustment of the level of the instrument’s UV content. The calibration of the reflectance factor must be done in all cases, whereas the adjustment of the UV-level is needed for measurements on fluorescent samples only. For more information about the different types of reference standards, see the product description, which also includes price list and general terms for ordering.

 

 

 

 

Reflectance factor

Non-fluorescent reference standards for the calibration of the reflectance factor are delivered each month. They consist of paper with a nominal R457 value of 90 % and report the spectral reflectance values. We also offer standards that report the Rx, Ry, Rz and R457 values for papers with a nominal R457 value of 90, 80, 70, 60, 50 or 20 %. Standards for the R950 value are also available. Measurements of the reflectance factor for non-fluorescent samples can be carried out with any UV setting of your instrument, e.g. UV(C) or UV(D65).

 

UV level

Fluorescent reference standards for the calibration of the UV level of the instrument are delivered each month. The quantities reported are the CIE whiteness and/or ISO brightness values. Read more about the conditions for whiteness and brightness here. Also refer to our instructions for UV level adjustment using UV(C) setting and UV(D65) setting, respectively.

 

Practical information

Each reference standard consists of an opaque pad of highly stable paper. The reported values are only valid for the first sheet in the pad. It is very important that the standards are handled and stored in the right way, please refer to our general instructions.

 

It is highly recommended to use working standards for regular controls of the calibration of your instrument. When there is a deviation, use the working standard for instrument recalibration. The IR3 standard should be used only to check or recalibrate the working standard.

 

Information concerning IR3 standards and Innventia Optical Calibration Laboratory activities is reported continuously in our newsletters