Quality Assurance

Checking Piece by Piece by using Film Anti-electrostatic and Dust-free Cleaning Device

            

1. Specification Test:

  Thickness:According to National Standard GB/T6672, monitoring by βthickness tester and measuring by using electronic digital micrometer outside diameter scale, accurate to 0.001mm.

  Length & Width:According to National Standard GB/T6673, using precise length scale, accurate to 0.1mm.

  Squareness:Use 900 ruler, calculating the exact length to 0.1mm.

Squareness Tolerance ≤ |1.2| mm

2. Appearance Test:

  Surface:At the distance of 40cm to the sample, detecting with your eyes in natural light or standard light.

  Luster Degree:Angle to 850 of the sample, take 2 points from the horizontal direction and 2 points from longitudinal direction respectively by using KGZ-1B Luster Instrument.

  Roughness:Take 2 points from the horizontal direction and 2 points from longitudinal direction respectively, test by using TR200 measurer, calculating the average.

  Impurity:At the distance of 40cm to the sample, detecting with your eyes in natural light or standard light, precise to individual area.>

  Fluorescence:At the distance of 30cm to the sample, detecting with your eyes with the ultraviolet light on the sample.

 

3. Mechanical Properties Test:

Conditioning of sample and testing environment in accordance with the national standard GB2918.

  Tensile Strength:According to the national standard GB/T1040.3-2006, adapting the experimental speed of 100mm/min, test by using electronic rally measurer. Take 5 samples of each horizontal direction and longitudinal direction respectively by cutting mold, place them in 23℃ environment for more than 4 hours, test and average the figures as result.

  Tensile Impact Strength:Test in accordance with the national standard GB/T 13525-1992.

  Vicat Softening Temperature:According to the national standard GB/T1633-2000, test with XRW-300MB hot deformation, vicat temperature tester. Sample size at 2*2cm, thickness at range of 3-6.5mm, pull strength at 10N, acceleration of heating temperature at 50℃/h, the testing probe pierce into the sample of 1mm±0.0mm, sensor take the temperature of the oil is the vicat softening temperature.

  Heating Shrinkage:According to the national standard GB/T 15267的5.5.4, place the films into the constant temperature oven under the condition of 140℃*10min.

  Density:Use TG328A(s)analytical balance scale.

 

4Logo、Packaging、WarehousingDistribution

  Logo:Attach to each product with qualification certificate which has been indicated the product standard#, serial #, name of the product, batch #, specification, weight, production date, producer name and address, etc..

  Packaging PVC sheets wrapped with inner layer of polyethylene membrane, bound up with shrink film and use PET or polypropylene string to fasten the items to the pallet. PVC sheets’ surface needs to be packed to face the same direction.

  Warehousing; Products stored at below 40℃, dry and cool warehouse without pressure, is not near the heat source.

  Distribution;Ocean Shipping suitable packaging is good for all means of transportation.

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