Quality Assurance Tester
The different type of quality assurance tests performed in the laboratory at different steps for denim fabric production of Auto Denims Ltd are as follows:
- Sample Fabric analysis.
- Yare quality evaluation
- Greige fabric tests
- Finished Fabric tests.
Operation staffs for QA tests processes includes:
- Incharge, quality assurance,
- QA Executive
- Laboratory Assistant
- Laboratory Helper
Equipment Used
- Washing machine (Wascator)
- Tumble dryer
- Rubbing fastness tester (Crock meter)
- Light box.
- Wash fastness tester (Gyro wash)
- Water fastness test (Persourimeter & Carbolite)
- Ligth fastness tester
- Abration resistance tester
- Tensile strength & Seam slippage tester
- Tearing Strength tester
Tools & accessories
- GSM (circular) Cutter
- Weighting Balance
- Rubber Plate
- Scissors
- Pick glass
- Needle
- Calculator
- T-Set
- Inch Tape
- Marker
- Shrinkage Scale, etc.
Materials /Chemicals Used
- Yarn and Produced denim fabric
- Hydrose
- Caustic
- Acetic Acid
- Sodium bi Sulphate
- Bleaching Powder
- Desize Chemicals
- N Dimethylformamide
Sample Fabric Analysis
Equipment Used : Thread Counter, Needle, Electric balance and scale.
Equipment Manufactured by : James H. Heal & Company, Halifex, England.
Person responsible : QA Executive Or Laboratory assistance.
Procedure :
- Check Number of ends & picks per inch by thread counter
- Pull out some threads from both the warp and weft side and determine warp and weft count. Then calculate fabric weight
- checks weave design & direction.
Yarn Quality Evaluation
For yarn quality evaluation following parameters are taken into consideration:
- Count
- Thick & Thin Place
- Slub
- Neps
- Yarn Sterngth
- CV%
Procedure :
- Every lot is accompanied by a yarn quality report.The yarn lot is accepted or rejected by evaluating this report
- Yarn quality of each lots is checked using random Sampling by machines available in Padma Textile mills Ltd.
Greige Fabric Testing
A greige fabric sample from each lot is taken after weaving and necessary identification information is written on it by marker. Then construction, greige GSM & width of the sample are measured. Samples from a no. of lots are sewn and desize together. After desizing, sample s are dried and condition and again the construction, greige GSM & width, Shrinkage, skew are measured. The results are document in the lab test report.
This report is send to weaving department and to the factory manager.
Following are the applicable type of quality control tests for finished fabric
- Oz/Yd2 (Ounce per square yard) /GSM (Grams per square meter)
- Width
- Dimensional Stability (Shrinkage)
- Skew
- Shade/Colour Continuity
- Tailing and Listing
- Crocking/Rubbing
- Wash Fastness
- Water Fastness
- Colour Fastness to Perspiration
- Light Fastness
- Abrasion Resistance
- Tensile Strength
- Tear Strength
- Seam Slippage.
Oz/Yd2 (Ounce per square yard) /GSM (Grams per square meter)
Equipment Used : GSM (circular) Cutter.
Equipment Manufactured by : James H. Heal & Company, Halifex, England.
Person responsible : Laboratory assistance.
Procedure : Cut out 3 sample pieces with circular cutter from the fabric and after conditioning weight them by electronic balance. Calculate their average weight and convert it into oz/yd2 or GSM
Performance Standard : According to the customer’s requirement.
Width Check
Equipment Used : Measuring Tape.
Equipment Manufactured by :Not applicable.
Person responsible : Laboratory assistance.
Procedure : Measure the width of fabric (the distance between two edges)
Performance Standard : According to the customer’s requirement.
Dimensional Stability
Equipment Used : Wastcator
Equipment Manufactured by : James H. Heal & Company, Halifex, England.
Person responsible : Laboratory assistance.
Procedure : After domestic wash tumble dry (low or high)
Performance Standard : Target shrinkage (length & width: Both are 0 to -3% for 100% cotton. 0 to -3% & -8 to -12% for cotton + spandex fabric)
Skew
Equipment Used : ‘T’ Set.
Equipment Manufactured by : Not applicable
Person responsible : Laboratory assistance.
Procedure : Mark the fabric in weft direction with the help of T-set and then after desizing, drying & conditioning check the displacement of weft. Calculate the skew by converting this displacement in percentage of fabric width
Performance Standard : Up to 1% skew can be allowed.
Shade/Color Continuity
Equipment Used : Not applicable.
Equipment Manufactured by : Not applicable.
Person responsible : Laboratory assistance.
Procedure : During finished fabric inspection the operator cuts a full with sample strip of 12 inches length from each roll. Take sample pieces of 12X6 inch dimension from each of the strips cut for a work order and make a blanket to check the shade or color continuity after enzyme bleach washes.
Performance Standard : Shade approved by the customer.
Some Quality Standard Specification | ||||
| Standard DS-1 | ||||
| 3.5to 3.9 Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 30 lbs. Weft: 25 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 2.2 lbs. Weft: 2 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 15 lbs. Weft: 15 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-2 | ||||
| 4 to 5.9 Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 45 lbs. Weft: 35 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 3.5 lbs. Weft: 3 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 18 lbs. Weft: 20 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-3 | ||||
| 6.0 to 7.9 Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 75 lbs. Weft: 55 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 5 lbs. Weft: 4 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 24 lbs. Weft: 25 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-4 | ||||
| 8.0 to 9.9 Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 90 lbs. Weft: 60 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 5.5 lbs. Weft: 4.3 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 28 lbs. Weft: 30 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-5 | ||||
| 10.0 to 11.9 Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 95 lbs. Weft: 65 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 5.8 lbs. Weft: 4.5 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 30 lbs. Weft: 32 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-6 | ||||
| 12.0 to 13.9 Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 100 lbs. Weft: 70 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 6 lbs. Weft: 4.8 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 31 lbs. Weft: 34 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-7 | ||||
| 14(& above) Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 105 lbs. Weft: 75 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 6.5 lbs. Weft: 5 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 32 lbs. Weft: 34 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-8 | ||||
| 6.0 Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 70 lbs. Weft: 55 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 5.5 lbs. Weft: 4.5 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 18 lbs. Weft: 20 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 2 | |
| Standard DS-9 | ||||
| 3.0 to 3.9 Oz/yd2 100% Cotton S. Black Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 25 lbs. Weft: 25 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 2 lbs. Weft: 2 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 15 lbs. Weft: 15 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-10 | ||||
| 4.0 to 5.9 Oz/yd2 100% Cotton S. Black Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 40 lbs. Weft: 30 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp:3. 5 lbs. Weft: 2.8 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 16 lbs. Weft: 18 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-11 | ||||
| 6.0 to 7.9 Oz/yd2 100% Cotton S. Black Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 70 lbs. Weft:50 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 4.5 lbs. Weft:3.5 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 20 lbs. Weft: 23 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-12 | ||||
| 8.0 to 9.9 Oz/yd2 100% Cotton S. Black Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 80 lbs. Weft: 55 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 5 lbs. Weft: 4.2 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 25 lbs. Weft: 27 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-13 | ||||
| 10.0 to 11.9 Oz/yd2 100% Cotton S, Black Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 85 lbs. Weft: 60 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 5.5 lbs. Weft: 4.4 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 26 lbs. Weft: 28 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-13 | ||||
| 12.0 to 13.9 Oz/yd2 100% Cotton S, Black Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 90 lbs. Weft: 65 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 5.8 lbs. Weft: 4.7 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 28 lbs. Weft: 30 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 | |
| Standard DS-7 | ||||
| 14(& above) Oz/yd2 100% Cotton Indigo Denim | ||||
| Physical Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Tensile Strength (Alphatens) [length & width] | ASTM D-5034: GRAB | Warp: 100 lbs. Weft: 70 lbs | |
| 2 | Elmendorf Tearing Strength [length & width] | ASTM D-1424 | Warp: 6 lbs. Weft: 5 lbs | |
| 3 | Seam Strength (Alphatens) [length & width] | ASTM D-434 | Warp: 30 lbs. Weft: 32 lbs | |
| Dimensional Stability & Durability Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Machine Washing (Washcator) | AATCC-135 | Length: 0 to -3 %, Width: 0 to -3 % | |
| Color Fastness Tests | ||||
| TEST NO. | TEST DESCRIPTION | TEST METHOD | MINIMUM REQUREMENT | |
| 1 | Light Fastness | ISO 105-B02: 1988 | 4 | |
| 2 | Wash Fastness (Gyro wash) | ISO 105-C06: 50 degree C | Color Change: 4C Color Staining: 3S | |
| 3 | Sweat Fastness (Perspprometer & Carbolite) | ISO 105 E 04 | Color Change: 4C Color Staining: 3S | |
| 4 | Rubbing Fastness (Crocometer) | AATCC 8 | Dry: 3 Wet: 1-2 |
Nice