Standardization is essential for several reasons: 1. Reproducibility: It ensures that experiments and studies can be replicated with the same results, which is fundamental for scientific validation. 2. Comparability: It allows data from different studies to be compared and combined, aiding in meta-analyses and risk assessments. 3. Regulatory Compliance: Standardized methods are often required by regulatory bodies to ensure that safety assessments of chemicals and pharmaceuticals are consistent and reliable. 4. Public Health: It helps in making accurate assessments of potential health risks, thereby protecting public health.