GB/T 10003-2008 English PDF (GB/T10003-2008)

GB/T 10003-2008: Biaxially oriented polypropylene (BOPP) film for general use
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GB/T 10003-2008
GB
NATIONAL STANDARD OF THE
PEOPLE'S REPUBLIC OF CHINA
ICS 83.140.10
G 33
Replacing GB/T 10003-1996, GB/T 12026-2000
Biaxially oriented polypropylene (BOPP) film for general use
[ISO 17555:2003 Plastics - Film and sheeting - Biaxially oriented
polypropylene (PP) films, MOD]
ISSUED ON: DECEMBER 30, 2008
IMPLEMENTED ON: SEPTEMBER 1, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Classification ... 6
4 Requirements ... 6
5 Test methods ... 8
6 Inspection rules ... 13
7 Marking, packaging, transportation and storage ... 15
Appendix A (Informative) Comparison of the chapter and clause numbers of this
standard with those of ISO 17555:2003 ... 16
Appendix B (Informative) List of technical differences between this standard and ISO
17555:2003 and their reasons ... 18
Foreword
This standard was modified in relation to ISO 17555:2003 Plastics - Film and sheeting
- Biaxially oriented polypropylene (PP) films (English version).
This standard was redrafted based on ISO 17555:2003. Appendix A lists the comparison
of the chapter and clause numbers of this standard and the chapter and clause numbers
of the international standard ISO 17555:2003.
Taking into account Chinese national conditions, this standard has made some
modifications when adopting ISO 17555:2003. Some technical differences have been
incorporated into the text, and the relevant clauses are marked with a vertical single line
in the margin. Appendix B provides a list of technical differences between this standard
and ISO 17555:2003 and their reasons for reference.
Compared with ISO 17555:2003, the main differences in this standard are as follows:
-- The product classification has been modified; the classification based on the
treated surface and non-treated surface has been deleted, and the product is
divided into ordinary type and heat-seal type according to whether it can be heat-
sealed;
-- The standard levels of major technical performances such as thickness deviation,
tensile strength, elongation at break, haze, and treated surface wetting tension
are improved;
-- Two performance indices "heat seal strength" and "glossiness" are added.
For ease of use, this standard has also made the following editorial changes:
-- The foreword of the international standard has been deleted;
-- Informative Appendix A and Appendix B have been added for guidance.
This standard replaces GB/T 10003-1996 Biaxially oriented polypropylene plain film
and GB/T 12026-2000 Biaxially oriented polypropylene film for heat-seal.
Compared with GB/T 10003-1996 Biaxially oriented polypropylene plain film and
GB/T 12026-2000 Biaxially oriented polypropylene film for heat-seal, the main
differences in this standard are as follows:
-- The technical indices such as thickness deviation and glossiness are improved;
-- The thickness test method has been unified, changing from the stacking method
of GB/T 10003-1996 and the single-layer method of GB/T 12026-2000 to the
stacking method;
Biaxially oriented polypropylene (BOPP) film for general use
1 Scope
This standard specifies the terms and definitions, classification, requirements, test
methods, inspection rules, marking, packaging, transportation and storage of biaxially
oriented polypropylene (BOPP) films for general use.
This standard applies to ordinary (plain film) and heat-seal films for general use, which
are made from polypropylene resin as the main raw material and are produced by biaxial
stretching using the flat film method.
This standard does not apply to other biaxially oriented polypropylene films with
special functions, such as biaxially oriented polypropylene matt film, biaxially oriented
polypropylene pearlized film, biaxially oriented polypropylene film for ripping strip,
biaxially oriented polypropylene film for capacitors, and biaxially oriented
polypropylene cigarette packaging film.
2 Normative references
The provisions in the following documents become the clauses of this standard through
reference in this standard. For all the referenced documents with dates, all the
subsequent amendments (excluding errata) or revisions are not applicable to this
standard. However, the parties who reach an agreement based on this standard are
encouraged to study whether the latest versions of these documents can be used. For all
the referenced documents without dates, the latest versions are applicable to this
standard.
GB/T191 Packaging - Pictorial marking for handling of goods (GB/T 191-2008,
ISO 780:1997, MOD)
GB/T 1037-1988 Test method for water vapor transmission of plastic film and sheet
- Cup method
GB/T 1040.3-2006 Plastics - Determination of tensile properties - Part 3: Test
conditions for films and sheets (ISO 527-3:1995, IDT)
GB/T 2410-2008 Determination of the luminous transmittance and haze of
transparent plastics
GB/T 2828.1-2003 Sampling procedures for inspection by attributes - Part 1:
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection (ISO 2859-1:1999, IDT)
GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and testing (idt
ISO 291:1997)
GB/T 5009.60-2003 Method for analysis of hygienic standard of products of
polyethylene, polystyrene and polypropyrene for food packaging
GB/T 6672-2001 Plastics film and sheeting - Determination of thickness by
mechanical scanning (idt ISO 4593:1993)
GB/T 6673-2001 Plastics film and sheeting - Determination of length and width
(idt ISO 4592:1992)
GB/T 8807-1988 Test method for specular gloss of plastics
GB 9688 Hygienic standard for polypropyrene products used as food containers
and tableware
GB/T 14216-2008 Plastics - Film and sheeting - Determination of wetting tension
(ISO 8296:2003, IDT)
3 Classification
Depending on whether there is a heat-sealing layer on the surface, it is divided into
ordinary type (Type A) and heat-seal type (Type B).
4 Requirements
4.1 Appearance
The appearance of the film shall comply with the requirements in Table 1, and the
appearance of the film roll shall comply with the requirements in Table 2.
where:
Δd -- average thickness deviation, expressed in %;
Δdm -- the maximum thickness deviation, expressed in %;
Δdn -- the minimum thickness deviation, expressed in %;
L1 -- average thickness, in micrometers (μm);
L2 -- the maximum thickness value, in micrometers (μm);
L3 -- the minimum thickness value, in micrometers (μm);
S -- nominal thickness, in micrometers (μm).
5.5 Width and length
The test of the width and length shall be in accordance with the provisions of GB/T
6673-2001.
5.6 Tensile strength and nominal strain at break
According to the provisions of GB/T 1040.3-2006, the specimen is prepared by cutting
method, and the specimen type is type 2. The specimen is a strip with a length of 150
mm and a width of (15±0.1) mm. The distance between the fixtures is 100 mm, and the
test speed is (250±25) mm/min.
5.7 Thermal shrinkage rate
5.7.1 Test instruments and equipment
Blast constant temperature oven (with a stainless-steel plate), stopwatch, and measuring
tool (with an accuracy of 0.5 mm).
5.7.2 Specimens
The length direction and width direction of the film roll are the longitudinal and
transverse directions of the specimen, respectively. Cut 5 square specimens of 100
mm×100 mm from the sample to be tested in the direction parallel to the longitudinal
direction. The sides of the square shall be parallel to the longitudinal direction of the
film roll, and the longitudinal and transverse directions shall be marked. Draw two
straight lines parallel to the two sides of the square and passing through the center of
the square as marks, and accurately measure the lengths of the two straight lines.
5.7.3 Test procedures
Place the specimen flat on the stainless-steel plate in the constant temperature oven at
120 ℃±3 ℃, with the stainless steel plate located in the middle of the oven. During the
test, the air is blown and the heating time is 120 seconds. Take out the specimen and
cool it to the test environment temperature. Measure the length of the longitudinal and
transverse marking lines with an accuracy of 0.5 mm.
5.7.4 Result calculation
The longitudinal and transverse thermal shrinkage rates are calculated according to
formula (4):
where:
T -- the thermal shrinkage rate of the specimen, expressed in %;
L -- the length of the marked straight line before heating, in millimeters (mm);
L1 -- the length of the marked straight line after heating, in millimeters (mm).
Take the arithmetic mean of the five specimens as the thermal shrinkage rate of the
tested sample.
5.8 Heat seal strength
5.8.1 Specimens
Cut 5 specimens evenly along the width direction of the film roll. The specimens are
150 mm long and (15±0.1) mm wide.
5.8.2 Test procedures
During the test, fold the specimen in half, align the two ends and place them flat on the
welding surface of the heat sealer for heat sealing. The heat sealing temperature is
135 ℃, the welding surface pressure during heat sealing is 0.18 MPa, and the heat
sealing time is 1 s. With the heat sealing part as the center line, clamp the two ends of
the specimen on the two fixtures of the test machine respectively, so that the
longitudinal axis of the specimen coincides with the center line of the upper and lower
6.3 Inspection categories
6.3.1 Factory inspection
The factory inspection items include all items in Chapter 4 except the water vapor
transmission rate and hygiene indicators.
6.3.2 Type inspection
Type inspection includes all items in Chapter 4, among which the hygiene indicators
need to be inspected only when the film is used as food packaging. Type inspection
shall be carried out in any of the following situations:
a) Finalization and appraisal of new product trials;
b) After formal production, if there are major changes in structure, materials, or
processes that may affect product performance;
c) The inspection is carried out once a year during normal production;
d) When the production is resumed after being discontinued for more than half a
year;
e) When there is a significant difference between the factory inspection result
and the last type inspection result.
6.4 Judgment rules
6.4.1 Judgment of non-conforming items
If any one of the appearance and dimensional deviations is unqualified, the roll will be
judged as unqualified.
If there are unqualified items in the physical and mechanical properties test results,
double samples shall be taken in the original lot and the unqualified items shall be
retested. If the re-test results are still unqualified, the physical and mechanical
properties of this lot of films are unqualified.
If any one of the hygiene indicators is unqualified, the hygiene indicators will be judged
as unqualified.
6.4.2 Judgment of qualified lots
Appearance and dimensional deviations shall be judged according to Table 9.
If the test results of appearance, dimensional deviation, physical and mechanical
properties and hygiene indicators are all qualified, the lot is judged to be qualified.
7 Marking, packaging, transportation and storage
7.1 Marking
The product shall have a certificate of conformity and be marked with the product name,
specification, length, net weight, production date, inspection stamp, manufacturer name,
manufacturer address, and implementation standards; the outer packaging shall have
signs such as "Keep dry; Keep away from heat; Handle with care" and shall comply
with the provisions of GB/T 191.
7.2 Packaging
Each roll of film is protected with pads at both ends and packed with film. With both
ends plugged with plastic plugs, it shall he loaded into the box with the supporting of
plywood and tied tightly with plastic tape.
Special packaging is subject to agreement between the supplier and the buyer.
7.3 Transportation
It shall be handled with care during transportation to avoid mechanical collision and
exposure to sunlight and rain.
7.4 Storage
The film shall be stored in a clean, dry warehouse, properly stacked, away from heat
sources, and not exposed to direct sunlight. The storage period shall not exceed six
months from the date of production.
GB/T 10003-2008
GB
NATIONAL STANDARD OF THE
PEOPLE'S REPUBLIC OF CHINA
ICS 83.140.10
G 33
Replacing GB/T 10003-1996, GB/T 12026-2000
Biaxially oriented polypropylene (BOPP) film for general use
[ISO 17555:2003 Plastics - Film and sheeting - Biaxially oriented
polypropylene (PP) films, MOD]
ISSUED ON: DECEMBER 30, 2008
IMPLEMENTED ON: SEPTEMBER 1, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Classification ... 6
4 Requirements ... 6
5 Test methods ... 8
6 Inspection rules ... 13
7 Marking, packaging, transportation and storage ... 15
Appendix A (Informative) Comparison of the chapter and clause numbers of this
standard with those of ISO 17555:2003 ... 16
Appendix B (Informative) List of technical differences between this standard and ISO
17555:2003 and their reasons ... 18
Foreword
This standard was modified in relation to ISO 17555:2003 Plastics - Film and sheeting
- Biaxially oriented polypropylene (PP) films (English version).
This standard was redrafted based on ISO 17555:2003. Appendix A lists the comparison
of the chapter and clause numbers of this standard and the chapter and clause numbers
of the international standard ISO 17555:2003.
Taking into account Chinese national conditions, this standard has made some
modifications when adopting ISO 17555:2003. Some technical differences have been
incorporated into the text, and t...