We encourage you to read an article by our experts representing the RADWAG Research and Certification Metrology Centre, Sławomir Janas, PhD, and Martyna Roszowska-Jarosz, PhD.

The quality of every product, including cosmetics, is the sum of many physical and chemical processes. As a result of these, a product is created from a mixture of ingredients, the characteristics of which are in accordance with the original assumptions. Achieving quality at a satisfactory level is not easy, especially when customer requirements and economic realities have to be taken into account. Economic and market success is usually the result of knowledge skilfully applied in the production process. The production of products in a high-volume system requires the continuous measurement of important product or process quality parameters. The method of measurement is defined by the measurement methodology and the interpretation of the results in terms of tolerances and errors draws from metrology.

Measuring product mass, its volume, average quantity and other physico-chemical parameters is also necessary as a defining element of production stability and for confirming product compliance with internal or normative requirements. The above relationships apply to many quality parameters of cosmetic products, including the measurement of mass or dry matter content.

It seems easy to make measurements, but the stability of the weighing system and the test method used determine the accuracy of the analysis. Currently, measurements can be performed with nanogram resolution in manual and automatic cycles, which is an additional complication.

Most production and control processes operate according to quality management systems. Unfortunately, normative acts do not provide ready-made solutions on how to achieve measurement accuracy, but only describe the requirements in general terms.

For more information on the metrology of mass and water content measurements in the cosmetics industry, see the article by RADWAG’s Research and Certification Metrology Centre employees, Slawomir Janas, PhD, and Martyna Roszowska-Jarosz, PhD. We encourage you to read.