GB/T 3830-2024 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 3830-2024 | English | 320 |
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Calendered film and sheet from flexible polyvinyl chloride
| Valid |
| GB/T 3830-2008 | English | 125 |
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Calendered film and sheet from flexible polyvinyl chloride
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| GB/T 3830-1994 | English | 399 |
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Calendered film (sheet)from flexible PVC
| Obsolete |
| GB 3830-1983 | English | 239 |
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Calendered film (sheet)from flexible PVC
| Obsolete |
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GB/T 3830-2024: Calendered film and sheet from flexible polyvinyl chloride---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3830-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.140.10
CCS G 33
Replacing GB/T 3830-2008
Calendered Film and Sheet from Flexible Polyvinyl Chloride
Issued on: AUGUST 23, 2024
Implemented on: MARCH 1, 2025
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 4
1 Scope... 6
2 Normative References... 6
3 Terms and Definitions... 7
4 Product Classification... 7
5 Requirements... 8
5.1 Appearance... 8
5.2 Dimensions... 9
5.3 Physical and Chemical Properties... 9
6 Test Methods... 12
6.1 Sampling... 12
6.2 Specimen Conditioning and Test Environment... 12
6.3 Appearance... 12
6.4 Thickness... 12
6.5 Width and Length... 12
6.6 Tensile Strength and Tensile Fracture Strain (or tensile fracture nominal strain)... 12
6.7 Right Angle Tear Strength... 12
6.8 Dimensional Change Rate... 12
6.9 Heating Loss Rate... 13
6.10 Water Extraction Rate... 13
6.11 Oil Resistance... 14
6.12 Phthalates... 14
6.13 Migratable Elements... 14
6.14 Short Chain Chlorinated Paraffins... 14
6.15 Haze... 14
6.16 Wetting Tension... 14
6.17 Low-temperature Elongation... 14
6.18 Cold-cracking Temperature... 14
7 Inspection Rules... 15
7.1 Batch... 15
7.2 Sampling... 15
7.3 Inspection Classification... 15
7.4 Judgment Rules... 16
Calendered Film and Sheet from Flexible Polyvinyl Chloride
1 Scope
This document specifies the requirements for the classification, appearance, dimensions and
physical and chemical properties of calendered film and sheet from flexible polyvinyl chloride
(hereinafter referred to as “products”), describes the test methods for the products, and specifies
the product inspection rules, marking, packaging, transportation and storage requirements.
This document is applicable to the production, inspection and sales of smooth-surface or light-
patterned calendered films and sheets from flexible polyvinyl chloride produced by the method
of calendering by adding plasticizers, stabilizers and other additives to suspension polyvinyl
chloride resin.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 1040.3 Plastics - Determination of Tensile Properties - Part 3.Test Conditions for Films
and Sheets
GB/T 2035-2008 Terms and Definitions for Plastics
GB/T 2410 Determination of the Luminous Transmittance and Haze of Transparent Plastics
GB/T 2828.1-2012 Sampling Procedures for Inspection by Attributes - Part 1.Sampling
Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection
GB/T 2918 Plastics - Standard Atmospheres for Conditioning and Testing
GB/T 6672 Plastics Films and Sheeting - Determination of Thickness by Mechanical Scanning
GB/T 6673 Determination of Length and Width of Plastics Film and Sheeting
GB 6675.4-2014 Safety of Toys - Part 4.Migration of Certain Elements
GB 11121-2006 Gasoline Engine Oils
GB/T 12027 Plastics - Film and Sheeting - Determination of Dimensional Change on Heating
GB/T 14216 Plastics - Film and Sheeting - Determination of Wetting Tension
GB/T 22048 Determination of Certain Phthalate Esters in Toys and Children’s Products
GB/T 22930.1 Leather and Fur - Chemical Determination of Metal Content - Part 1.Extractable
Metals
GB/T 40263 Textiles - Determination of Short Chain Chlorinated Paraffins
GB/T 41792 Plastics - Film and Sheeting - Determination of Cold-crack Temperature
QB/T 1130 Plastics Angle Tear Performance Test Method
3 Terms and Definitions
The terms and definitions defined in GB/T 2035-2008 are applicable to this document.
4 Product Classification
4.1 The classification of products by thickness is shown Table 1.
4.2 The classification of products by haze is shown Table 2.
4.3 The classification of products by purposes is shown Table 3.
4.4 The classification of products by whether subsequent printing is required is shown Table 4.
5 Requirements
5.1 Appearance
The appearance shall comply with the provisions of Table 5, and the cumulative allowable
number and dispersion of black spots and impurities shall comply with the provisions of Table
6.When there is an overlap in product categories, the category with the highest indicator
requirements shall be followed. There shall be no joints in the middle of the product roll.
6 Test Methods
6.1 Sampling
The samples shall be randomly selected from each batch of delivered products. After removing
at least 5 layers of the surface of the sampled roll, the samples shall be cut, and the longitudinal
direction of the product shall be marked on the samples.
6.2 Specimen Conditioning and Test Environment
Unless otherwise specified, under the standard environment of temperature (23 2) C and
relative humidity (50 10) % specified in GB/T 2918, the specimen conditioning time shall be
not less than 4 h, and the test shall be carried out under this condition.
6.3 Appearance
Visually inspect under natural light and measure with corresponding measuring tools. The
particle size of black spots and impurities shall be measured with a 10-fold or more magnifying
glass with a minimum division value of not less than 0.1 mm.
6.4 Thickness
In accordance with the provisions of GB/T 6672, carry out the test.
6.5 Width and Length
In accordance with the provisions of GB/T 6673, carry out the test.
6.6 Tensile Strength and Tensile Fracture Strain (or tensile fracture nominal strain)
Test in accordance with the provisions of GB/T 1040.3.Use Type 2 specimen with a width of
(10.0 0.2) mm and a test speed of (200 10) mm/min. The test results are expressed as the
arithmetic mean of all measured values of the specimen, with the tensile strength retained to
the first decimal place and the tensile fracture strain (or tensile fracture nominal strain) retained
to the integer place.
6.7 Right Angle Tear Strength
Test in accordance with the provisions of QB/T 1130.Take a single piece specimen and retain
the integer place.
6.8 Dimensional Change Rate
Test in accordance with the provisions of GB/T 12027.The test temperature is (100 2) C and
the duration is 30 min.
6.9 Heating Loss Rate
Cut 3 specimens of 40 mm 60 mm, place the group of specimens in a desiccator for 24 hours,
then, take them out, and weigh them piece by piece to an accuracy of 0.1 mg. Place the group
of specimens in a non-air-blasting oven at (100 2) C, hang the specimens on the same
horizontal plane with a distance of no more than 80 mm from the temperature measuring device,
and no less than 50 mm from the edge of the oven. The distance among the specimens shall be
no less than 30 mm. After 6 hours of constant temperature, take them out and immediately place
them in a desiccator to cool to room temperature. Weigh them piece by piece again to an
accuracy of 0.1 mg.
The heating loss rate is calculated in accordance with Formula (1).
Where,
n---the heating loss rate;
m0---the mass of the specimen before heating, expressed in (g);
m---the mass of the specimen after heating, expressed in (g).
Calculate the arithmetic mean of the test results of three specimens and retain the first decimal
place.
6.10 Water Extraction Rate
Cut 3 specimens of 50 mm 100 mm, place the group of specimens in a desiccator for 24 hours,
then, take them out, and weigh them piece by piece to an accuracy of 0.1 mg. Place the group
of specimens in a 500 mL beaker, pour 200 mL of distilled water into the beaker, and sink the
specimens into the water (if the specimens float on the water surface, use a weight tied by
polyamide yarns to make them sink. The specimens shall not touch each other or stick to the
wall of the beaker). Place the beaker at a constant temperature of (50 2) C. After 24 hours,
take out the specimens from the beaker, place each specimen between 2 pieces of dry absorbent
paper to absorb the moisture, then, place the specimens in an oven at (50 2) C for 8 hours,
take them out and cool them in a desiccator to room temperature. Weigh each piece to an
accuracy of 0.1 mg.
The water extraction rate is calculated in accordance with Formula (2).
Where,
q---the water extraction rate;
M0---the mass of the specimen before the water extraction test, expressed in (g);
M---the mass of the specimen after the water extraction test, expressed in (g).
Calculate the arithmetic mean of the test results of three specimens and retain the first decimal
place.
6.11 Oil Resistance
With the longitudinal direction as the length direction, cut 3 specimens of 100 mm 50 mm,
and place the group of specimens in the engine oil with a temperature of (60 1) C and
performance meeting the requirements of SG 0W20 model in GB 11121-2006 for 5 hours,
then, take out and cool to room temperature. After using a neutral detergent to gently wipe the
surface of the specimens, fold the specimens 180 along the length direction one by one, then,
flatten them and check the folded part, and judge with the worst specimen.
6.12 Phthalates
Test in accordance with the provisions of GB/T 22048.
6.13 Migratable Elements
Prepare and extract in accordance with the provisions of 8.2 in GB 6675.4-2014, and determine
in accordance with the provisions of GB/T 22930.1.
6.14 Short Chain Chlorinated Paraffins
Test in accordance with the provisions of GB/T 40263.
6.15 Haze
Test in accordance with the provisions of GB/T 2410.
6.16 Wetting Tension
Test in accordance with the provisions of GB/T 14216.
6.17 Low-temperature Elongation
Test in accordance with the method in Appendix A.
6.18 Cold-cracking Temperature
Test in accordance with the provisions of GB/T 41792.
7 Inspection Rules
7.1 Batch
Products are inspected in batches. Products produced with the same equipment, of the same
category, formula, thickness and width are considered a batch. The quantity of each batch shall
not exceed the shift output or 8 t.
7.2 Sampling
The inspection of appearance and dimensions shall be carried out in accordance with the
provisions of GB/T 2828.1-2012, using a secondary sampling scheme with general inspection
level II and acceptance quality limit AQL of 6.5.The batch, sample, and judgment array are
shown in Table 11.
The physical and chemical properties shall be inspected by randomly selecting one roll from
the products that have passed the inspection of appearance and dimensions.
Table 11 -- Sampling Scheme
7.3 Inspection Classification
7.3.1 Exit-factory inspection
The exit-factory inspection items are appearance, thickness, width, length, tensile strength,
tensile fracture strain (or tensile fracture nominal strain), right angle tear strength and
dimensional change rate in Chapter 5.
Batch/roll Sample Sample Volume Cumulative Sample Volume Acceptance AC Rejected Re
First
First
First
First
First
First
Second
Second
Second
Second
Second
7.3.2 Type inspection
The inspection is carried out in accordance with all the requirements specified in Chapter 5.
Under one of the following circumstances, type inspection should be carried out.
a) Pattern evaluation of products or transfer of old products to other factories for
production;
b) After formal production, if there are major changes in materials and processes that
may affect product performance;
c) When production has been suspended for more than 3 months, and then, resumed;
d) When the exit-factory inspection results are significantly different from the previous
type inspection;
e) Every 12 months of normal production.
7.4 Judgment Rules
7.4.1 Quality judgment of sample units
The appearance and dimensions of the samples are inspected item by item in accordance with
all the items listed in 5.1 and 5.2.If all the inspected items are qualified, then, the sample unit
is judged to be qualified.
7.4.2 Quality judgment of qualified batches
The appearance and dimensions of the samples are judged in accordance with the provisions of
GB/T 2828.1-2012.
The physical and chemical properties of the samples are inspected item by item in accordance
with all the items listed in 5.3.If there are disqualified items in the inspection results, then,
double sampling shall be taken from the original batch, and the disqualified items shall be re-
inspected. If all the inspection results are qualified, then, the batch shall be judged as a qualified
batch. If one or more of the inspection results are disqualified, then, the batch shall be judged
as a disqualified batch.
8 Marking, Packaging, Transportation and Storage
8.1 Marking
Each roll of the products shall be accompanied by a certificate of conformity and have the
following markings.
a) Manufacturer’s name and address;
b) Product name;
c) Product category;
d) Product thickness, width and length;
e) Production date or production batch No.;
f) Serial No. of this document;
g) Inspector code;
h) Net mass.
8.2 Packaging
The products shall use hard plastics, metal tube or paper tube as the roll core. The outside of
the roll (including the end face) shall be packed with film, kraft paper or other packaging
materials.
8.3 Transportation
During transportation, the products shall be prevented from collision or contact with sharp
objects, gently loaded and unloaded, and protected from sun, rain and stains, and the packaging
shall be kept intact.
8.4 Storage
The products shall be neatly placed in a clean, dry, ventilated and cool warehouse, and the
packaging shall be kept intact. The products should not be horizontally placed in more than 6
layers, and should be vertically placed in a single layer, avoiding sunlight and heat sources. The
product storage period is 18 months from the production date.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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