GB/T 35957-2018

This standard specifies a gamma spectrometry method for detecting the radioactive isotopes cesium-137 and cesium-134 in cosmetics, which are prohibited substances due to their radiological toxicity. It is applied by cosmetic manufacturers and regulatory testing laboratories to screen raw materials and finished products for radioactive contamination, particularly relevant for cosmetics derived from natural sources or imported materials that may have been exposed to nuclear fallout or industrial radiation. The method ensures compliance with safety regulations by providing a quantitative measurement of these isotopes to protect consumers from potential health risks associated with radioactive exposure.