Test Items

As the quality of life continuously improves, consumers have increased expectations for the quality of clothing, food, housing and transportation. This is particularly obvious for food, beverage, medical and automobile products because qualities of these products can heavily influence human life and health. Therefore it has drawn enormous attention from enterprises and manufacturers to focus on these products' quality assurance. Notably, the quality control of relevant materials used in the production of these products plays an important factor in determining the overall product quality. Labthink's professional testing laboratory provides outsourced testing services for food and beverage producers, medical, pharmaceutical and cosmetics companies, and packaging and automobile manufacturers and many other industries and help them better determine and control their product qualities.

1. Testing Scope:

1.1 Barrier Property Tests of Films and Paper:
1.1.1 Oxygen permeability test of various films and paper
1.1.2 Nitrogen permeability test of various films and paper
1.1.3 Carbon dioxide permeability test of various films and paper
1.1.4 Water vapor permeability test of various films and paper
1.2 Mechanical Strength Tests of Films and Paper
Test items including but not limited to: tensile strength, heat seal strength, peel strength, tearing strength, and thickness, etc.
Common testable materials: PE, LDPE, HDPE, PP, BOPP, CPP, PET, PA, EVOH, EVAL, PVC, PVDC, AL, KOP, KPET, KPA, KMF, aluminum-plated PET, aluminum coated CPP, BOPP with matte surface treatment, PA/AL/CPP, PA/PU, PET/AL/PA, PE/AL/PET, five-layer co-extrusion film, seven-layer co-extrusion film
1.3 Barrier Property Tests of Bottles and Bags:
Commonly testable products including but not limited to: beer bottle, coke bottle and mineral water bottle, etc.
1.4 Automotive Interior Decoration Tests:
1.4.1 Fogging test
Commonly testable material including but not limited to: foamed materials, textile, non-woven fabrics, leatheroid, leather, instrument board, headlight, and cushion material, cotton cloth, etc.;
Others: fogging properties of raw materials in the state of liquid, paste, powder and solid, etc.
1.4.2 Air permeability test
Commonly testable material including but not limited to: Leather, leatheroid, non-woven fabrics, thermal insulating film, and battery diaphragm, etc.
1.4.3 Water vapor permeability test
Leather, leatheroid, non-woven fabrics, fabrics, etc.
1.5 Adhesive Strength Test
Various adhesive products
1.6 Barrier Property Tests of Construction Materials and Solar Back-sheets

2. Service Workflow


3. Test Items

3.1 Standard Test Items

NO. Test Item Condition Material Standards to Follow (If Any)
1 Air Transmission Rate
(Differential Pressure Method)
23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
2 Air Transmission Rate
(Equal Pressure Method)
23°C, 0%RH Film/Sheeting ASTM D3985-2005(2010)e1
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
3 Oxygen Transmission Rate
(Differential Pressure Method)
23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
4 Oxygen Transmission Rate
(Equal Pressure Method)
23°C, 0%RH Film/Sheeting ASTM D3985-2005(2010)e1
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
5 Carbon Dioxide Transmission Rate
(Differential Pressure Method)
23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
6 Nitrogen Transmission Rate 23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
7 Oxygen Transmission Rate (Container) 23°C, 0%RH Container ASTM F1307-2002(2007)
ASTM D3985-2005(2010)e1
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
8 Air Transmission Rate (Container) 23°C, Ambient Container ASTM F1307-2002(2007)
ASTM D3985-2005(2010)e1
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
9 Water Vapor Transmission Rate
(Gravimetric/Dish Method)
38°C, 90%RH Film/Sheeting ISO 2528-1995
ASTM E96/E96M-2012
TAPPI T448 OM-09
10 Water Vapor Transmission Rate
(Electrolytic Detection Sensor Method)
38°C, 90%RH Film/Sheeting ISO 15106.3-2003
11 Water Vapor Transmission Rate
(Infrared Detection Sensor Method)
38°C, 90%RH Film/Sheeting ASTM F1249-13
ISO 15106.2-2003
TAPPI T557 wd-04
12 Water Vapor Transmission Rate
(Humidity Detection Sensor Method)
38°C, 90%RH Film/Sheeting ASTM E398-13
ISO 15106.1-2003
13 Water Vapor Transmission Rate of Container
(Electrolytic Detection Sensor Method)
38°C, 90%RH Container ISO 15106.3-2003
14 Water Vapor Transmission Rate of Container
(Infrared Detection Sensor Method)
38°C, 90%RH Container ASTM F1249-13
ISO 15106.2-2003
15 Oxygen Transmission Rate after Flex
(Differential Pressure Method)
23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
16 Oxygen Transmission Rate after Flex
(Equal Pressure Method)
23°C, 0%RH Film/Sheeting ASTM D3985-2005(2010)e1
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
17 Nitrogen Transmission Rate after Flex
(Differential Pressure Method)
23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
18 Carbon Dioxide Transmission Rate after Flex
(Differential Pressure Method)
23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
19 Air Transmission Rate after Flex
(Differential Pressure Method)
23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
20 Water Vapor Transmission Rate after Flex
(Gravimetric/Dish Method)
38°C, 90%RH Film/Sheeting ISO 2528-1995
ASTM E96/E96M-2012
21 Tensile Strength and Elongation Rate
(Lateral)
23°C, 50%RH Film/Sheeting ISO 527-1:2012
ISO 527-3:1995
ASTM D882-2012
22 Tensile Strength and Elongation Rate
(Longitudinal)
23°C, 50%RH Film/Sheeting ISO 527-1:2012
ISO 527-3:1995
ASTM D882-2012
23 Coefficient of Friction 23°C, 50%RH Film/Sheeting ISO 8295-1995
ASTM D1894-2011e1
24 Mechanical Contacting Thickness Test 23°C, 50%RH Film/Sheeting ISO 4593:1993
ASTM D374M-13
TAPPI T411 om-10
ISO 3034-2011
ISO 534-2011
25 Heat Seal Strength 23°C, 50%RH Film/Sheeting ASTM F88/F88M-2009
26 Shrinking Force and Shrinkage Ratio
(Lateral)
23°C, 50%RH Film/Sheeting ISO 14616-1997
DIN 53369-1976
27 Shrinking Force and Shrinkage Ratio
(Longitudinal)
23°C, 50%RH Film/Sheeting ISO 14616-1997
DIN 53369-1976
28 Falling Dart Impact Energy 23°C, 50%RH Film/Sheeting ISO 7765.1-1988
ASTM D1709-2009
29 Pendulum Impact Energy 23°C, 50%RH Film/Sheeting ASTM D3420-2008a
30 Tear Strength
(Elmendorf Method, Lateral)
23°C, 50%RH Film/Sheeting ISO 6383.2-1983
ASTM D1922-2009
ISO1974-2012
TAPPI T414 om-12
31 Tear Strength
(Elmendorf Method, Longitudinal)
23°C, 50%RH Film/Sheeting ISO 6383.2-1983
ASTM D1922-2009
ISO1974-2012
TAPPI T414 om-12
32 Tear Strength
(Trouser Tear Method, Lateral)
23°C, 50%RH Film/Sheeting ISO 6383.1-1983
ASTM D1938-2008
33 Tear Strength
(Trouser Tear Method, Longitudinal)
23°C, 50%RH Film/Sheeting ISO 6383.1-1983
ASTM D1938-2008
34 Tear Strength
(Right Angled Tear Method, Lateral)
23°C, 50%RH Film/Sheeting ASTM D1004-2013
35 Tear Strength
(Right Angled Tear Method, Longitudinal)
23°C, 50%RH Film/Sheeting ASTM D1004-2013
36 Peel Strength (Lateral) 23°C, 50%RH Film/Sheeting ASTM F904-1998(2008)
37 Peel Strength (Longitudinal) 23°C, 50%RH Film/Sheeting ASTM F904-1998(2008)
38 Hot Tack Strength As Required Film/Sheeting ASTM F2029-2008
39 Puncture Resistance 23°C, 50%RH Film/Sheeting NA
40 Burst 23°C, 50%RH Film/Sheeting ASTM F1140/F1140M-2013
41 Creep 23°C, 50%RH Film/Sheeting ASTM F1140/F1140M-2013
42 Creep To Burst 23°C, 50%RH Film/Sheeting ASTM F1140/F1140M-2013
43 Seal Strength of Open Package 23°C, 50%RH Film/Sheeting ASTM F1140/F1140M-2013
44 Seal Strength with Expansion Restriction 23°C, 50%RH Film/Sheeting ASTM F2054/F2054M-13
45 Residual Oxygen Analysis of Vacuum Package 23°C, 50%RH Container NA
46 Residual Oxygen Analysis of Vacuum Package 23°C, 50%RH Film/Sheeting NA
47 Helium Transmission Rate 23°C, 0%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
48 Oxygen Transmission Rate-Equal Pressure Method (Container) 23°C, 100%RH Container ASTM F1307-2002(2007)
ASTM D3985-2005(2010)el
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
49 Oxygen Transmission Rate-Equal Pressure Method (Container) 15-55°C, 35%-90%RH Container ASTM F1307-2002(2007)
ASTM D3985-2005(2010)el
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
50 Carbon Dioxide Transmission Rate-Differential Pressure Method 23°C, 100%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
51 Carbon Dioxide Transmission Rate-Differential Pressure Method 5-95°C, 10%-90%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
52 Nitrogen Transmission Rate-Differential Pressure Method 23°C, 100%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
53 Nitrogen Transmission Rate-Differential Pressure Method 5-95°C,
10%-90%RH
Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
54 Oxygen Transmission Rate-Differential Pressure Method 23°C, 100%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
55 Oxygen Transmission Rate-Differential Pressure Method 5-95°C,
10%-90%RH
Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
56 Air Transmission Rate-Differential Pressure Method 23°C, 100%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
57 Air Transmission Rate-Differential Pressure Method 5-95°C,
10%-90%RH
Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
58 Oxygen Transmission Rate-Equal Pressure Method 23°C, 100%RH Film/Sheeting ASTM F1927-2007
ISO 15105-2:2003
ASTM D3985-2005(2010)e1
59 Oxygen Transmission Rate-Equal Pressure Method 10-55°C,
35%-90%RH
Film/Sheeting ASTM F1927-2007
ISO 15105-2:2003
ASTM D3985-2005(2010)e1
60 Water Vapor Transmission Rate-Gravimetric/Dish Method 15-55°C,
35%-90%RH
Film/Sheeting ISO 2528-1995
ASTM E96/E96M-2012
TAPPI T464 om-12
61 Water Vapor Transmission Rate-Electrolytic Detection Sensor Method 38°C, 100%RH Film/Sheeting ISO 15106.3-2003
62 Water Vapor Transmission Rate-Electrolytic Detection Sensor Method 15-55°C,
35%-90%RH
Film/Sheeting ISO 15106.3-2003
63 Water Vapor Transmission Rate-Infrared Detection Sensor Method 15-55°C,
35%-90%RH
Film/Sheeting ASTM F1249-13
ISO 15106.2-2003
TAPPI T557 wd-04
64 Water Vapor Transmission Rate-Infrared Detection Sensor Method 38°C, 100%RH Film/Sheeting ASTM F1249-13
ISO 15106.2-2003
TAPPI T557 wd-04
65 Water Vapor Transmission Rate-Humidity Detection Sensor Method 15-55°C,
35%-90%RH
Film/Sheeting ASTM E398-13
ISO 15106.1-2003
66 Water Vapor Transmission Rate-Electrolytic Detection Sensor Method (Container) 38°C, 100%RH Container ISO 15106.3-2003
67 Water Vapor Transmission Rate-Electrolytic Detection Sensor Method (Container) 15-55°C, 35%-90%RH Container ISO 15106.3-2003
68 Oxygen Transmission Rate after Flex-Differential Pressure Method 23°C, 100%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
69 Oxygen Transmission Rate after Flex-Differential Pressure Method 5-95°C,
10%-90%RH
Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
70 Oxygen Transmission Rate after Flex- Equal Pressure Method 23°C, 100%RH Film/Sheeting ASTM F1927-2007
ISO 15105-2:2003
ASTM D3985-2005(2010)e1
71 Oxygen Transmission Rate after Flex-Equal Pressure Method 10-55°C,
35%-90%RH
Film/Sheeting ASTM F1927-2007
ISO 15105-2:2003
ASTM D3985-2005(2010)e1
72 Nitrogen Transmission Rate after Flex-Differential Pressure Method 23°C, 100%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
73 Nitrogen Transmission Rate after Flex-Differential Pressure Method 5-95°C,
10%-90%RH
Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
Reference:
ASTM D1434-1982(2009)e1
74 Carbon Dioxide Transmission Rate after Flex-Differential Pressure Method 23°C, 100%RH Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
75 Carbon Dioxide Transmission Rate after Flex-Differential Pressure Method 5-95°C,
10%-90%RH
Film/Sheeting ISO 2556-1974
ISO 15105-1:2007
ASTM D1434-1982(2009)e1
76 Coefficient of Friction Room temperature ~ 99.9°C Film/Sheeting ASTM D1894-2011e1
77 Stress at Definite Elongation (Longitudinal) Ambient Film/Sheeting ISO 527-1:2012
ISO 527-3:1995
ASTM D882-2012
78 Stress at Definite Elongation (Lateral) Ambient Film/Sheeting ISO 527-1:2012
ISO 527-3:1995
ASTM D882-2012
79 Air Transmission Rate-Equal Pressure Method 23°C, 100%RH Container ASTM F1307-2002(2007)
ASTM D3985-2005(2010)el
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
80 Air Transmission Rate-Equal Pressure Method 15-55°C,
35%-90%RH
Container ASTM F1307-2002(2007)
ASTM D3985-2005(2010)el
ASTM F1927-2007
ISO 15105-2:2003
ASTM F2622-08(2013)
81 Rotary Torque of Bottle Cap Ambient Container ASTM D2063/D2063M-2010(2012)
ASTM D3198-1997(2007)
ASTM D3474-1990(2012)
82 Seal Performance (Negative Pressure Method) Ambient Film/Sheeting ASTM D3078-02(2013)
83 Seal Performance (Negative Pressure Method) Ambient Container ASTM D3078-02(2013)
84 Flex Durability of Film (Turpentine Method) Ambient Film/Sheeting ASTM F392/F392M-2011
85 Primary Adhesion Ambient Film/Sheeting NA
86 Lasting Adhesion Ambient Film/Sheeting NA
87 Ink Layer Fastness Ambient Film/Sheeting NA
88 Headspace Oxygen and Carbon Dioxide Analysis Ambient Film/Sheeting NA
89 Residual Oxygen Analysis of Glass Bottle and Metal Jar Ambient Container NA
90 Steaming and Boiling Resistance Ambient Film/Sheeting NA
91 Seal Performance after Steaming and Boiling (Negative Pressure Method) Ambient Film/Sheeting ASTM D3078-02(2013)
92 Cold Resistance Ambient Film/Sheeting NA
93 Transmittance Ambient Film/Sheeting ASTM D1003-2011e1
94 Haze Ambient Film/Sheeting ASTM D1003-2011e1
95 Heat Shrinkage Ratio (Lateral) Ambient Film/Sheeting ASTM D2732-2008
96 Heat Shrinkage Ratio (Longitudinal) Ambient Film/Sheeting ASTM D2732-2008
97 Gas Transmission Rate of Packaging Films at Extreme High and Low Temperature (Data Fitting) As Required Film/Sheeting NA
98 Seal Temperature, Pressure and Dwell Time * Ambient Film/Sheeting ASTM F88/F88M-2009
ASTM F2029-2008
99 180 Degree Peel Strength (Lateral) Ambient Adhesives NA
100 180 Degree Peel Strength (Longitudinal) Ambient Adhesives NA
101 90 Degree Peel Strength (Lateral) Ambient Adhesives NA
102 90 Degree Peel Strength (Longitudinal) Ambient Adhesives NA
103 Carbon Dioxide Transmission Rate of Containers Ambient Carbonated Beverage Bottle NA
104 Water Vapor Transmission Rate of Construction Materials NA Construction Material NA
105 Gas Transmission Rate of Special Materials * NA Special Material NA
106 Organic Gas Permeability NA Film/Sheeting NA
107 Flammable and Explosive Gas Transmission Rate NA Film/Sheeting NA
108 Gas Transmission Rate of Battery Diaphragms NA Battery Diaphragm NA
109 Oxygen Transmission Rate of Contact Lenses NA Contact Lense NA
110 Removing Force of Caps Ambient Container NA
111 Opening Force Ambient Container NA
112 Pullout Force of Brush Hair Ambient NA NA
113 Compressive Resistance of Paper Cartons Ambient Paper Carton NA
114 Fogging Test (Garevimetric Method) Ambient NA NA
115 Fogging Test (Gloss Method) Ambient NA NA
116 Fogging Test (Haze Method) Ambient NA NA
117 Gas Transmission Rate of Porous Materials Ambient NA NA
118 Abrasion Resistance Ambient Presswork NA
119 Suspension Force Ambient Infusion Bottle NA
120 Seal Performance at Drug Injection Point Ambient Infusion Bottle NA
121 Permeation Resistance at Puncture Area Ambient Infusion Bottle NA
122 Seal Performance of Injector and Permeation Resistance at Injection Point Ambient Infusion Bottle NA
123 Self Adhesion Ambient Self-adhesive Plastic Wrap NA

Remarks for the items marked with "*"
1. Determination of Heat Seal Parameters
1.1 $70 is charged for each test, which means performing a heat seal strength test at a specific temperature, pressure and dwell time.
1.2 At least 15 tests are required to obtain the optimized heat sealing parameters, which means customers will be provided with 15 heat seal strength results, each at different sealing temperature, pressure and dwell time. Besides, the optimized heat sealing parameters will be recommended.
2. Gas Transmission Rate of Specific Materials
Specific materials refer to very thick, rigid or uneven ones on which gas transmission rate test cannot be performed with regular instruments. Specific procedures will be applied to carry on such test.

3.2 CNAS Certified Test Items

ID Test Items Code of Field Title, Code of Standard or Method Limitation Note
1 Water Vapor Transmission Rate 0315 Sheet Materials-Determination of Water Vapour Ttransmission Rate- Gravimetric (dish) Method 
ISO 2528-1995 
   
2 Water Vapor Transmission Rate 0315 Plastics-Film and Sheeting-Determination of Water Vapour Transmission Rate-Part 3:Electrolytic Detection Sensor Method
ISO 15106.3-2003
   
3 Water Vapor Transmission Rate 0315 Standard Test Methods for Water Vapor Transmission of Materials   
ASTM E96/E96M-2012
   
4 Oxygen Transmission Rate 0315 Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor
ASTM D3985-2005(2010)e1
   
5 Oxygen Transmission Rate 0315 Standard Test Method for Determination of Oxygen Gas Transmission Rate,Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector
ASTM F1927-2007 
   
6 Gas Transmission Rate 0315 Plastics-Film and Sheeting-Determination of Gas Transmission-Differential-pressure Method
GB/T 1038-2000 
Oxygen Negotiation for Others
7 Gas Transmission Rate 0315 Nitrogen
8 Gas Transmission Rate 0315 Carbon Dioxide
9 Gas Transmission Rate 0315 Air
10 Gas Transmission Rate 0315 Plastics-Film and Sheeting-Determination of Gas Transmission Rate-Part1:Differential-pressure Methods
ISO 15105.1-2007 
Oxygen  
11 Gas Transmission Rate 0315 Nitrogen
12 Gas Transmission Rate 0315 Carbon Dioxide
13 Gas Transmission Rate 0315 Air
14 Thickness 0315 Plastics-Film and Sheeting-Determination of Thickness by Mechanical Scanning 
ISO 4593-1993
   
15 Thickness 0315 Standard Test Methods for Thickness of Solid Electrical Insulation
ASTM D374-1999 (2005) 
   
16 Tensile Properties 0315 Plastics-Determination of Tensile Proterties-Part 1: General Principles
ISO 527.1-2012
Plastics - Determination of Tensile Properties - Part 3: Test Conditions for Films and Sheets 
ISO 527.3-1995
Only for Tensile Strength and Nominal Tensile Break Strain  
17 Tensile Properties 0315 Standard Test Method for Tensile Properties of Thin Plastic Sheeting
ASTM D882-2012 
Only for Tensile Strength and Nominal Tensile Break Strain  
18 Tear Resistance 0315 Plastics-Film and Sheeting-Determination of Tear Resistance-Trouser Tear Method (Elmendorf)
ISO 6383.2-1983
   
19 Tear Resistance 0315 Standard Test Method for Tear Resistance (Graves Tear) of Plastic Film and Sheeting
ASTM D1004-2013
   
20 Tear Resistance 0315 Standard Test Method for Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method
ASTM D1922-2009 
   
21 Coefficient of Friction 0315 Plastics-Film and Sheeting-Determination of the Coefficients of Friction
ISO 8295-1995 
   
22 Coefficient of Friction 0315 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
ASTM D1894-2011e1
   
23 Peel Strength 0315 Standard Test Method for Comparison of Bond Strength or Ply Adhesion of Similar Laminates Made from Flexible Materials   
ASTM F904-1998 (2008)
   
24 Heat Shrinkage Properties 0315 Plastics-Heatshrinkable Films of Polyethylene, Ethylene Copolymers and Their Mixtures-Determination of Shrinkage Stress and Contraction Stress
ISO 14616-1997 
  Two Directions
25 Heat Shrinkage Properties 0315 Standard Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film and Sheeting ASTM D2732-2008   
26 Heat Shrinkage Properties 0315 Testing of Plastic Films-Determination of the Shrinking Stress
DIN 53369-1976 
 
27 Heat Seal Strength 0315 Standard Practices for Making Heatseals for Determination of Heatsealability of Flexible Webs as Measured by Seal Strength
ASTM F2029-2008 
   
28 Falling Dart Impact Properties 0315 Plastics-Film and Sheeting-Determination of Impact Resistance-Free Falling Dart Method-Part 1:Staircase Method
ISO 7765.1-1988
   
29 Falling Dart Impact Properties 0315 Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
ASTM D1709-2009 
   
30 Flex Durability 0315 Standard Test Method for Flex Durability of Flexible Barrier Materials
ASTM F392/F392M-2011 
  Turpentine Method

4. Specimen Requirements

4.1 Raw Material
4.1.1 Barrier tests: at least 6 specimens are required for each test; specimen should be flat and integral with at least 100 mm in width and at most 3 mm in thickness.
4.1.2 Flex durability tests: at least 5 specimens are required for each test; each specimen should be at least 280 mm in length and 200 mm in width; for film bags, dimension is calculated when it is unfolded.
4.1.3 Falling dart impact tests: at least 30 specimens are required; specimen should be flat and integral with at least 150 mm in both length and width.
4.1.4 Other mechanical tests: at least 20 specimens are required; specimen should be flat and integral with at least 250 mm in length and 200 mm in width; for heat seal test, specimen length should be at least 350 mm.
4.1.5 All raw materials should be
a. without scratch, abrasion, damage, pinhole, or creases; without contamination; with intact ink layer; never contacted with unknown matter or exposed to an environment that may compromise test results; kept dry and clean.
b. Coiled before sent out to avoid wrinkles (for films and composite films only).
c. Sealed in uncontaminated, protective, and intact bags (for film bags and sheets only).
d. Sealed in dry, uncontaminated, protective, and intact bags or containers (for plastic containers only).
4.2 Finished Package
4.2.1 For leak test, heat seal test, and residual oxygen test, at least 10 finished packages with content filled in, 10 heat-sealed finished packages without content, and 5 defective finished packages with content filled in are required; each specimen should be at most 250 mm in length and 180 mm in width.
4.2.2 For headspace gas analysis test, at least 10 finished packages with content filled in, 10 heat-sealed finished packages without content, and 5 defective finished packages with content filled in are required; each specimen should contain at least 15 mL gas.
4.2.3 All finished packages should be:
a. finished packages with content filled in and heat-sealed finished packages without content should be out of scratch, abrasion, damage, pinholes, and creases; without contamination; with intact ink layer; never contacted with unknown matter or exposed to an environment that may compromise test results; kept dry and clean.
b. finished packages with content filled in, heat-sealed finished packages without content, and defective finished packages with content filled in should be kept separately before sent out.
4.3 Other Things to Be Noted
4.3.1 Test standard should be stated when the test application form is submitted. If no available test standard could be applied, test method should be negotiated.
4.3.2 If quantity of the test specimens does not meet the above requirements, test results could be only calculated from tests of the provided specimens.
4.3.3 Customers need to provide information such as the full name, specification, material and batch number of the specimen and notify Labthink whether the specimen should be returned.

5. Test Duration

5.1 Barrier Property Tests: 14 work days for 5 or less types of specimens to be tested (7 work days for expedited service). Test duration shall be negotiated for over 5 types of specimens to be tested.
5.2 GTR Tests of Organic Gas, Hazardous Gas or Package: 28 work days for 3 or less types of specimens to be tested (14 work days for expedited service). Test duration shall be negotiated for over 3 types of specimens to be tested.
5.3 Other Test Items: 7 work days (3 work days for expedited service)
5.4 The charge of expedited testing service is twice of regular testing service.
5.5 Any disagreements of the report shall be stated within 10 days after the receipt of the report.

6. Disclaimer

In no event will Labthink be responsible for any damages or penalties resulting from Labthink’s testing services or reporting of results or from use or distribution of the materials tested. Although Labthink endeavors to provide accurate testing and reporting, the testing and reporting of results are provided by Labthink without any warranty, express or implied, as to their accuracy. In no event will Labthink be liable for any direct, indirect, special, punitive, or consequential damages resulting from the testing or reporting of test results. Customer agrees to indemnify and hold harmless Labthink against any claims arising out of customer’s use, sale, or distribution of materials tested and against any claims arising out of customer’s breach.

Labthink reserves the right of final explanation to all the above notes.