Our laboratory participates in the interlaboratory proficiency program (PICC) organized by the Madrid New Technology National Center (CNNT), which is affiliated to the Ministry of Employment and Social Security in Spain, for business hygiene chemicals 3 times a year. In December 2017, the results of the participation of heavy metals proficiency test expounded and our laboratory has succeeded again. We have approved our quality by successfully venturing out of the organization where more than 50 laboratories from different countries of the world have participated.
