Introduction
The consistent quality of products is vital for the manufacturing industry. Many big brands that endured over a century have strict quality inspection procedures.
They usually work with an impartial third-party quality control team. The professionals will conduct product quality inspections and monitor the production process. After this, only the excellent quality products are shipped off to the suppliers or the customers.
In most cases, the QC inspectors use GSM test methods to ensure excellent quality. We’ll share everything about the GSM test that industries usually perform. Let’s get started.
What is a GSM Test?
GSM refers to “gram per square meter” and is expressed in g/m². It is a standard unit for measuring the weight of the items such as paper, cardboard, fabrics, etc. Usually, a company will have a GSM target depending on the product usage and the required cost.
To meet the manufacturing requirements, a one-meter by one-meter sheet of materials will be cut. It will then be weighed in grams to compare the material quality.
For example, in the textile industry, textiles of 1m² are acquired using a GSM cutter. Then, the quality inspection team will weigh it using a weighing balance.
The total weight is then averaged to obtain the official GSM number. The standard tolerance of the GSM test is about +/- 3%. Hence, a 300 g/m² material can differ between 291 and 309 g/m².