This system
is mostly used in textile industry around the globe now. This method
describes a procedure and standard to establish a numerical designation for grading of
fabrics from a visual inspection.
It may be used for the delivery and
acceptance of fabric with requirements mutually agreed upon by the buy and the supplier. This system does not establish a quality level for a given
product, but rather provides a means of defining defects according to their
severity by assigning demerit point values. All type of fabrics whether grey or
finished, can be graded by this system.
Defect Demerit Point
|
|
Length of defect
|
Demerit Points
|
3 inches or less
|
1
|
Over 3 inches but not
over 6 inches
|
2
|
Over 6 inches but not
over 9 inches
|
3
|
Over 9 inches
|
4
|
1. No running yard shall be penalized more than 4 points for warp and weft
defects.
2. For Fabric width exceeding 64"-66", Maximum penalty points can be increased above 4 per linear yard in proportion to the width.
3. Defects appearing within one inch of either edge shall be disregarded.
4. Any hole other than a pin hole shall be considered a major defect and assigned 4 points for penalty.
Grading:
1. Linear Yard basis:
Acceptable tolerance=20 points per 100 linear yard
2. Square yard basis:
Points/100 sq. yd= Total Points scored in the bulk X 100 X 36
Width of the roll(inch) X total yds inspected
2. For Fabric width exceeding 64"-66", Maximum penalty points can be increased above 4 per linear yard in proportion to the width.
3. Defects appearing within one inch of either edge shall be disregarded.
4. Any hole other than a pin hole shall be considered a major defect and assigned 4 points for penalty.
Grading:
1. Linear Yard basis:
Acceptable tolerance=20 points per 100 linear yard
2. Square yard basis:
Points/100 sq. yd= Total Points scored in the bulk X 100 X 36
Width of the roll(inch) X total yds inspected
Acceptable tolerance=
a. 28 points per 100 sq. yd. for each individual roll.
b. 20 points per 100 sq.yd. for average of rolls inspected.
1st Quality: Penalty points not exceed the acceptable tolerance.
2nd Quality: Penalty points exceed the acceptable tolerance.
a. 28 points per 100 sq. yd. for each individual roll.
b. 20 points per 100 sq.yd. for average of rolls inspected.
1st Quality: Penalty points not exceed the acceptable tolerance.
2nd Quality: Penalty points exceed the acceptable tolerance.
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