Paper products Weight (Gram / square meter) determination

Determination of Paper Weight (Gram / Square Meter)
Determination of Paper Weight (Gram / Square Meter)

The paper has a number of physical properties that must be known and paid attention both during production and during use. Paper thickness, moisture, strength, surface smoothness, optical properties and surface pH value as well as weight is extremely important in this respect.

The strength and thickness of the papers are directly proportional to their weight. The weight of a square meter of paper in grams is called the paper weight. Since the standard paper sizes are different in the printing sector, the paper weight is a common point between these different standard sizes. The higher the paper weight, the higher the paper's ability to absorb and reflect light. The paper weights used in everyday life are as follows: newspaper paper 45 gr / m2, copier paper 80 gr / m2, business card 300-350 gr / m2.

Based on their weight, the papers are divided into three groups: papers 40-170 gr / m2, cartons 170-600 gr / m2 and paperboard 600 gr / m2 and above.

Authorized laboratories, within the scope of specific tests tests and analyzes are carried out to determine the weight of paper products in grams / square meter. These studies are based on standards published by domestic and foreign organizations. The standards considered to determine the grammage of paper species in grams / square meter are:

  • TS EN ISO 536 Paper and cardboard - Determination of weight
  • TS EN ISO 12625-6 Soft tissue and paper products - Part 6: Weight determination

This standard covers the test method to determine the weight of soft tissue and similar products. Weight is measured by determining the mass of soft tissue or similar products cut to a certain size by determining a mass of a test sample or by determining the area and mass of a certain number of finished soft products.

  • TS ENV 12625-2 Soft tissue and paper products - Part 2: Sampling and conditioning