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Attribute Adjustment Sampling Inspection or ANSI/ASQ Z1.4 (MIL-STD 105E)
Inspection Method: 1-Time Sampling Inspection of Regular Inspection
General Inspection Level I, Acceptable Quality Level: 1.5
Lot Size
Sample Size
Acceptance Number
Rejection Number
150 or less
8
0
1
151 ~ 280
13
0
1
281 ~ 500
20
1
2
501 ~ 1,200
30
1
2
1,201 ~ 3,200
50
2
3
3,201 ~ 10,000
80
3
4
- Giving 1,2,3,4 points according to the degree of defects
Length of Defect
Demerit Point
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 but not over 36 inches
4
* What is 4 point system? : This system, approved by AAMA and ASTM in U.S., is used by most textile manufacturers and lots of clothing manufacturers & buyers as well as the U.S. Pentagon.
- Woven Fabrics
Class
Fabric Type
Acceptable Tolerance
1
Synthetic Fabric (Polyester/Nylon/Acetate)
Dress Shirting
Filament Rayon
Worsted Fabric
20 points/100 yds2
2
Denim
Canvas
Poplin/Oxford/Gingham Shirting
Spun Rayon
Woolen Fabric
Chambray/Indigo Dyed Fabrics
Special Fabrics (Jacquard/Dobby)
Corduroy/Velvet/Stretch Denim
28 points/100 yds2
3
Linen
Moslin
40points/100 yds2
4
Doupioni Silk
50 points/100 yds2
- Knitted Fabrics
Class
Fabric Type
Acceptable Tolerance
1
Synthetic Fabric (Polyester/Nylon/Acetate)
Filament Rayon
Worsted Fabric
Silk blend fabric
20 points/100 yds2
2
Spun Rayon Yarn
Woolen Fabric
Indigo Dyed Fabrics
Special Fabric (Jacquard/Dobby)
Velour/Spandex
25 points/100 yds2
3
Basic Knitting (Combing/Cotton Blend)
30 points/100 yds2
4
Basic Knitting(Carding)
40 points/100 yds2
- Length of Fabrics: Above normal value
- Width of Fabrics: Within +3%, -1% of normal width
- Skewness or Bow: Must not be seen, within 3%
- Color
　 Above the grade 4 in AATCC standard color cards for discoloration, by color comparison with standards presented
　 Color difference among dyed lots: Above the grade 4 in AATCC standard color cards for discoloration
　 Color difference in the same dyed lot: Above the grade 4-5 in AATCC standard color cards
for discoloration
Color Difference in left/right sides & front/back hems: Color differences must not be seen between
left/right sides & front/back hems, Above the grade 4-5 in AATCC standard color cards for discoloration
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What is called as point system in fabric inspection?
What is called as point system in fabric inspection?
10 point system in fabric inspection?
yes Save
What is an example of calculating a percent abundance?
after inspection of fabric based on 4 point system how to calculate the % of fabric pass or fail
What is difference between American 4 point system and Japanese 4 point system in fabric inspection?
Basic difference between American and Japanese 4 point system is points per difects. Japanese 4 point system was introduced earlier and this system contains some soft atitude for the seller. American 4 point system was introduced after the Japanese system and it is more strict than any other inspection system.
What is 10 point system in fabric inspection?
what is 10 point system in fabric inspectionIf you want to produce high quality garments, you need high quality piece goods. When a sewing factory receives fabric from the mill, it is difficult to conduct a full 100% inspection of the fabric. '''Apparel Search recommends a minimum 10% inspection of all piece goods prior to spreading the fabric. Many factories attempt to inspect the fabric during the spreading, but this is probably unrealistic to depend on the spreader to control the fabric quality evaluation. The fabric should be inspected prior to the fabric reaching the cutting tables. ''' There are several piece good inspection systems for measuring the quality of fabrics. Their is a Ten-Point System, which was developed in the 1950's. That system assigns penalty points to each defect, depending on the length of the defect. The system is a bit complicated because the points per length vary for warp and filling defects. There is also a Dallas System published in the 1970's. That system was developed specifically for knits. According to this system, if any defect was found on a finished garment the garment would then be termed a second. In regard to fabric, this system defines a second as "more then one defect per ten linear yards, calculated to the nearest ten yards." For example, one piece 60 yards long would be allowed to have six defects. Another system for evaluating piece goods is the Four-Point System. In this system, you should inspect at least 10 percent of the total rolls in the shipment. Make sure to select at least one roll or each color way. The defect classification works as follows.Size of Defect:3 inches or less = 1 point penaltyOver 3 inches but not over 6 inches = 2 point penaltyOver 6 inches but not over 9 inches = 3 point penaltyOver 9 inches = 4 point penaltyNote: a maximum of 4 points should be charged to one linear yard. Also, note that only "major" defects are charged.The acceptable score varies. Many companies use 40 points per 100 yards as acceptable defect rate. However, others may find this not acceptable...Here is some math to show you an example.Total Yardage received: 5400Acceptance Point-count: 40 per 100 yardsTotal Yards Inspected : 540Total penalty points found in the sample inspection: 150 points150 divided by 540 times 100 = 27.77 points per 100 yards (because the allowance is 40 points per 100 yards, this shipment would be acceptable).Above are only a few examples of fabric testing procedures. In fact, above is only a short summary of the processes. If you are responsible for inspecting fabric, you really will need to do more research on this subject
What is Formula for inspection fabric by 4 point system?
Kniited goods are usually measured by roll weight rather than their length . Points/100sq yds>> ( GSM x 0.082 x total points of that roll ) / roll weight in kgs
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Automobile is a very fast growing industry. There are many fields where on line quality inspection is one of the most crucial aspects of the production line. A camera based Inspection system contributes towards fulfillment of the same.Camera is used to read and verify the current Reading of Speedo Meter, Fuel gauge, Temp. gauge, Rpm gauge. System also checks for the presence of bulbs. The 'Control' part is integrated with this camera inspection. It generates various speeds, switches the bulbs, gauges etc through it's own built in program.Typical Applications: Speedometer calibration, Cluster inspection. Other systems inspected may be smog-control devices, brakes, lights, tires, drivetrain, and/or suspension.Cali-Pro is one such closed loop 'Vision Inspection' system. A totally innovative Speedo Meter Calibration and Inspection system.
