Used as a reference standard in analytical laboratories to calibrate instruments and validate methods for the detection and quantification of formaldehyde in various samples. Commonly employed in environmental testing to measure formaldehyde levels in air, water, and industrial emissions. Also utilized in quality control processes within the food, cosmetics, and pharmaceutical industries to ensure compliance with safety regulations. Supports accurate determination of formaldehyde in indoor air quality assessments, especially in homes and workplaces with potential exposure from building materials or consumer products.