1. Epyllion Testing lab Ltd Your Partner in Textile Testing
Fabric weight measurement technique
Fabric weight is a most important characteristics of a fabric .It is required to confirm about the
fabric weight of a finish fabric otherwise we cannot revert when garments is made .
PURPOSE :
To make a representative assessment of the mass per unit area in grammas per square miter of a
fabric .
APPARATUS ::
1. Circular Sample cutter capable of giving a specimen area of 100cm2+/- 1 cm2.
2. Weight balance
3. Cutting board .
Sample cutter check :: Check your sample cutter by yourself with a simple method .Cut a white
page and fold it and measure by mm steel ruler . If it is 112.6 mm and above then your cutter is ok
to get accurate result .

2. Epyllion Testing lab Ltd Your Partner in Textile Testing
SAMPLE CUTTING ::
Take a a full width fabric, cut 5 pices of sample avoiding 50 mm of the selvedge .Take approximate
150X150 mm and insure no two fabrics pices contain the same set of warp and weft yarns .
It is a little mathematics :
The area of a circle is calculated by multiplying the square of the radius by (3.141592...
So if the diameter is 113 mm, the radius will be 113/2 = 56.5. The area of the specimen you cut
will therefore be 56.5 x 56.5 x 3.141592 = 100.29 sq cms.
You are looking for Grams per Square Metre. The area of
1 square metre is 100 x 100 square cms = 10,000 sq cms.
Therefore if you divide 10,000 by the area of the specimen you have cut, you will get
10,000 / 100.29
= a factor of 99.71.
Therefore if you multiply the weight of the specimen by 99.71 you will get the Grams per Square
Metre. Most people multiply by 100, so, when they read the result from the balance they
automatically just move the decimal point two places to the left.
EXAMPLE:
Suppose the specimen weights 1.85grams, the GSM will be 1.85 x 100 = 185 grams per square
metre. If you multiplied by 99.71 the result would be 1.85 x 99.71 = 184.46 grams per square metre.
Because of variations in the cutting performance of different fabrics the O.29grams does not really
play a significant role in the accuracy of the test result and most performance requirements anyway
give a tolerance of maybe +- 2/3%.
Follow below link
textilelearner.blogspot.com/2014/03/fabric-weight-measurement-technique.html