Testing Service

Key: test item, instrument name, total nonvolatile migration, gravimeter, moisture permeameter

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Test items

With the improvement of people's living standards, consumers have higher requirements for the quality of clothing, food, housing and transportation products, especially food, beverages, pharmaceuticals, automobiles and other products. The focus of consumer attention. Among them, material quality control is an important aspect of product quality. In order for material suppliers to have a clear understanding of the quality of their products, Guangzhou Xitang provides sample commission testing services to the society.
 
1. Detection range
　　1.1 Film and paper barrier property detection:
　　1.1.1 Various film and paper resistance O2, N2, CO2, air inorganic gas and other performance tests.
　　1.1.2 Water resistance testing of various films and papers.
　　1.2 The physical properties of various films and papers:
　　such as tensile strength, tensile strength, heat sealing strength, peel strength, tear resistance, thickness and other
　　common test materials: PE, LDPE, HDPE, PP, BOPP, CPP, PET, PA, EVOH, EVAL, PVC, PVDC, AL, KOP, KPET, KPA, KMF, PET aluminized, CPP aluminized, matt BOPP, PA/AL/CPP, PA/PU, PET/AL/PA, PE /AL/PET, five-layer co-extruded film, seven-layer co-extruded film, etc.
　　1.3 Various products container bottles, container bags oxygen barrier, water barrier detection:
　　Common detection products are: beer bottles, cola bottles, mineral water bottles, etc.
　　1.4 Automobile interior parts testing:
　　1.4.1 Air permeability testing
　　Various leather, artificial leather, non-woven fabric, woven fabric, heat insulation film, battery separator, etc.
　　1.4.2 Moisture permeability test
　　Leather, artificial leather, non-woven fabric, woven fabric, etc.
　　1.5 Barrier testing of building materials, backboards, etc.
 
2. List of testing items

 

Numbering

Test items

Test description

1

Organic gas permeability

Determination of organic gas permeability of packaging materials such as plastic films and composite films. Organic matter includes: aromatics, benzenes, alcohols, ketones, esters, aldehydes, etc.

2

High and low temperature gas transmission rate of packaging film

Determination of the penetration rate, permeability coefficient, solubility coefficient, and diffusion coefficient of oxygen, carbon dioxide, nitrogen, and other test gases for packaging materials such as plastic films and composite films under high and low temperature conditions.
Temperature range: -20℃～+150℃

3

Oxygen transmission rate

Determination of oxygen permeability rate, permeability coefficient, solubility coefficient, and diffusion coefficient of packaging materials such as plastic films and composite films.

4

Carbon dioxide gas transmission rate

Determination of carbon dioxide permeation rate, permeability coefficient, solubility coefficient, and diffusion coefficient of packaging materials such as plastic films and composite films.

5

Nitrogen permeability

Determination of nitrogen penetration rate, permeability coefficient, solubility coefficient, diffusion coefficient of packaging materials such as plastic films and composite films.

6

Air permeability

Determination of nitrogen penetration rate, permeability coefficient, solubility coefficient, diffusion coefficient of packaging materials such as plastic films and composite films.

7

Helium transmission rate

Determination of helium permeability rate, permeability coefficient, solubility coefficient, diffusion coefficient of packaging materials such as plastic films and composite films.

8

Flammable and explosive gas transmission rate

Determination of the penetration rate, permeability coefficient, solubility coefficient and diffusion coefficient of packaging materials such as plastic films and composite films, and combustible and explosive gases such as methane.

9

Container oxygen transmission rate

Detection of overall oxygen permeability of containers such as beverage bottles, packaging bags, three-piece cans, red wine bottles, infusion bags, blister packs, sealed caps, pipeline containers, oil tanks, etc.

10

Battery separator air permeability

Gas permeability test of battery separator.

11

Oxygen transmission rate of contact lens

Detection of oxygen transmission rate of contact lens materials.

12

Gas permeability of automobile tires

Measurement of air and nitrogen penetration and leakage rate of automobile tires and rubber materials.

13

Geomembrane permeability

It is suitable for the determination of the penetration rate of oxygen, nitrogen, carbon dioxide, air, helium and other gases of various geomembrane under certain test conditions.

14

Water vapor transmission rate

Detection of water vapor transmission rate of plastic film, composite film, thermal insulation material, building material, leather, textile, non-woven fabric, spunlace cloth, coating material, plastic wrap and other materials.

15

Container water vapor transmission rate

The water vapor transmission rate of the whole containers such as beverage bottles, packaging bags, three-piece cans, red wine bottles, infusion bags, blister caps, sealing caps, pipeline containers, fuel tanks, aluminum-plastic water pipes and so on.

16

Tensile strength and deformation rate

Measurement of indicators such as plastic film, composite film, sheet and other materials' tensile strength and deformation rate.

17

Constant tensile stress performance

Determination of the stress strength of plastic films, composite films, sheets and other materials under fixed extension conditions.

18

Tear strength

Determination of tear strength of plastic films, composite films, sheets and other materials.

19

90 degree peel force

Determination of 90-degree peel strength of plastic films, composite films, sheets and other materials.

20

180 degree peel force

Determination of 180-degree peel strength of plastic films, composite films, sheets and other materials.

twenty one

Puncture resistance

Test of anti-puncture performance of infusion bags, rubber plugs, packaging bags, plastic films, composite films, paper, aluminum foil and other samples.

twenty two

Cap removal force

Detection of the removal power of beverage bottle inner caps, aluminum-plastic composite caps, plastic bottle pull rings, edible oil barrel inner caps, cans and other bottle caps.

twenty three

Carton compressive strength

Corrugated carton, calcium plastic corrugated box, honeycomb board box, logistics honeycomb paper tray, corrugated carton, calcium plastic corrugated box, shock-absorbing material and other packaging pressure resistance, deformation rate, stacking test.

twenty four

Bottle mouth rotation torque

Determination of rotational opening torque and sealing torque of beverage bottles, edible oil barrels, medicine bottles, cosmetic packaging bottles and other packaging parts.

25

Heat seal strength

Determination of heat sealing strength of plastic film, composite film, aluminum-plastic composite, paper-plastic composite and other materials.

26

Hot tack strength

Plastic film, composite film, aluminum-plastic composite, paper-plastic composite and other materials in the molten state of the thermal adhesive strength, thermal adhesive strength, optimal thermal adhesive strength and other items.

27

Heat sealing strength of jelly cup

Determination of the heat sealing strength of jelly cups under certain heat sealing process parameters.

28

Coefficient of friction

Determination of the coefficient of dynamic and static friction of plastic films, paper and other materials.

29

Coefficient of friction at a specific temperature

Determination of the dynamic and static friction coefficients of plastic films, paper and other materials under specific temperature conditions.

30

thickness

Thickness measurement of plastic film, composite film, aluminum-plastic composite, paper-plastic composite, coextruded film, paper, coating, substrate, metal and other materials.

31

Dart impact strength

Plastic film, composite film, sheet, paper, cardboard, rubber sheet, non-woven fabric, spunlace cloth and other materials to determine the dart impact resistance.

32

Pendulum impact strength

Plastic film, composite film, sheet, paper, cardboard, rubber sheet, non-woven fabric, spunlace cloth and other materials to determine the resistance to pendulum impact performance.

33

Film heat shrinkability

Determination of thermal shrinkage of plastic films, composite films and other materials under certain temperature conditions.

34

Sealing performance

Testing the sealing performance of containers such as milk bags, milk powder bags, puffed food bags, instant noodle bags, beverage bottles, Tetra Pak packaging boxes, jelly cups, medicine bottles, infusion bags, blister packs, cosmetic bottles, cosmetic bags, etc.

35

Open packaging seal strength

The bursting pressure, creep, creep to rupture test of the packaging bag with three sides heat-sealed and one side opened under the suppression and non-suppression conditions.

 

　　Note: 1. Test requirements: 1) Provide samples according to the test method standards specified by the test items.
　　　　　　　　　　　2) The number of samples for each test item is not less than 3 groups.
　　　　　　　　　　　3) For special tests without test method standards, the two parties agree on the sample requirements.
　　　　　　　　　　　4) The flammable and explosive gas test requires special customization and requires consultation between both parties.
　　　　2. Test period: 1) Inorganic gas permeability: 14 days expedited 7 days
　　　　　　　　　　　2) Organic, dangerous and other special gas permeability: 28 days expedited 14 days
　　　　　　　　　　　3) Other testing items: 7 days expedited 3 days
　　　　　　　　　　　4) plus The urgent fee is 100% of the testing fee.

4. Precautions for commissioning the test
　　4.1 Guangzhou Xitang is only responsible for the test data provided and is not used to resolve legal disputes.
　　4.2 Sample requirements: The
　　appearance of the sample: no wrinkles, scratches, pinholes, or pollution; the container sample should be free of wrinkles, pollution, barriers, and should not be squeezed by any external force.
　　Sample size:
　　·Breathability test: (O2, N2, CO2 and other gases)
　　·Differential pressure method sample size ≥ 120mm×120mm
　　·Container test requirements: bottle mouth inner diameter> Φ13mm, outer diameter <Φ50mm Moisture
　　permeability test:
　　·electrolysis Method moisture permeability test: ≥120mm×120mm
　　·Weighing method moisture permeability test: ≥120mm×120mm
　　·Number of samples: ≥ 3 pieces/each sample/each test item
　　4.3 The customer should inform the full name, specification, Matter, batch number, need to return and other matters.
　　4.4 Clarify the test basis and test standards of the sample.

5. Test report
　　If the client has any objection to the test data, please give a formal notice within 10 days. The calculation of the time starts from the date of the test report and will not be processed after the deadline.