Recently, our company has passed the international laboratory proficiency test (IIS) of lead in paint, and has won the "excellent" result.

IIS English full name Institute for Interlaboratory Studies, headquartered in Holland, is the world's most authoritative independent laboratory proficiency testing agency. The results of its proficiency testing are divided into 4 levels: "excellence", "satisfaction", "problem", and "dissatisfaction".

A total of 300 laboratories from 42 countries and regions in the world were included in the proficiency test. The test results of our company are very close to the true values of samples. The top more than 300 laboratories in the world, marking the detection and technical level of heavy metals in our company, have reached the international advanced level.