grammage testing

Grammage testing measures the weight or density of paper or fabric per unit area, expressed in grams per square meter (gsm). It helps determine the material's thickness, strength, and quality. The test involves cutting a sample to a specific size, weighing it accurately, and then calculating the gsm by dividing the weight by the area. This measurement is crucial for manufacturers and buyers to ensure consistency, suitability for specific uses (like printing or packaging), and to compare different materials. Essentially, grammage testing provides a standardized way to assess and specify the material's density and quality.