Pesticides are released into the environment to eliminate pests, but residues from these toxic chemicals also end up in the air, water, and even in food. Our pesticide standards help you to accurately monitor soil, water and food quality in compliance with national and international regulations. Our reliable Merck legacy products lines deliver quality standards, reference materials and certified reference materials offering the consistent parameters you need to obtain accurate results, stability assessment, homogeneity testing and uncertainty traceability. All manufacturing sites for our standards are at a minimum double accredited to the highest achievable ISO quality level.