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GB/T 6543-2008 English PDF (GBT6543-2008)

GB/T 6543-2008 English PDF (GBT6543-2008)

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GB/T 6543-2008: Single and double corrugated boxes for transport packages
This standard specifies the classification, structural form, requirements, test and inspection methods of single corrugated boxes and double corrugated boxes (hereinafter referred to as corrugated boxes) for transport packages. This standard applies to the design, manufacture and inspection of corrugated boxes. Other types of corrugated boxes can refer to the relevant provisions of this standard.
GB/T 6543-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 55.160
A 82
Replacing GB/T 6543-1986, GB/T 5033-1985
Single and double corrugated boxes
for transport packages
ISSUED ON. APRIL 01, 2008
IMPLEMENTED ON. OCTOBER 01, 2008
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Classification ... 5
4 Basic box type and code ... 6
5 Requirements ... 7
6 Inspection and test ... 9
7 Inspection rules ... 9
8 Marking, packaging, transport and storage ... 11
Appendix A (Normative) Basic box type and code ... 12
Appendix B (Informative) Type and code of accessories ... 14
Appendix C (Informative) Relationship between three dimensions ... 16
Appendix D (Informative) Calculation method of compressive strength of
corrugated box ... 18
Foreword
This standard refers to JIS Z 1506 “Corrugated boxes for transport packages”. This standard replaces GB/T 6543-1986 “Corrugated box”, GB/T 5033-1985
“Corrugated box for packaging of export product”.
As compared with GB/T 6543-1986 and GB/T 5033-1985, the main changes of this standard are as follows.
- ADD normative references;
- In this standard, DIVIDE the corrugated boxes into two categories; CANCEL the provisions on category 3 from the original standard. RE-PROVIDE the applicable instructions for the two categories of corrugated boxes as well as the corresponding corrugated fiberboard;
- MAKE appropriate modification for the requirements for the adhesives, flat wire, etc. which are used for the connection of the box;
- MAKE appropriate modification for the requirements for the overlap width and defects for the connection of the box;
- CANCEL the impact strength test, anti-reload test, etc. from the original standard;
- MODIFY the requirements for the pressure test;
- MODIFY the requirements of the inspection rules of the original standard; - MODIFY the requirements for packaging, marking, transport and storage; - ADD the Appendix C The relationship between the three dimensions;
- MODIFY the Appendix D Calculation method for compressive strength of
corrugated box.
Appendix A of this standard is normative. Appendix B, Appendix C, and
Appendix D are informative.
This standard was proposed by and shall be under the jurisdiction of the National Standardization Technical Committee.
Responsible drafting organizations of this standard. Shenzhen Huali Packaging Trading Co., Ltd., Xiamen Hexing Packaging and Printing Co., Ltd., Shengda Group Co., Ltd., Shenzhen Packaging Industry Association. The participated drafting organizations of this standard. Shangfeng Group Co., Ltd., Qingdao Fengcai Paper Products Co., Ltd., Shenzhen Meiyingsen Environmental
Single and double corrugated boxes
for transport packages
1 Scope
This standard specifies the classification, structural form, requirements, test and inspection methods of single corrugated boxes and double corrugated boxes (hereinafter referred to as corrugated boxes) for transport packages. This standard applies to the design, manufacture and inspection of corrugated boxes. Other types of corrugated boxes can refer to the relevant provisions of this standard.
2 Normative references
The provisions in following documents become the provisions of this standard through reference in this standard. For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this standard; however, parties who reach an agreement based on this standard are
encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 191 Packaging - Pictorial marking for handling of goods (GB/T 191- 2008, ISO 780.1997, MOD)
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 4857.4 Packaging - Transport packages compression test method
(GB/T 4857.4-1992, eqv 2872.1985)
GB/T 4892 Dimensions of rigid rectangular packages - Transport packages GB/T 6544 Corrugated fiberboard
3 Classification
Corrugated boxes are divided into 20 types according to the different types of corrugated fiberboard used, the maximum mass and comprehensive size of the contents, the expected storage and transport environment conditions, as shown 4.3 Folding type (type 04)
Usually the bottom, body, and lid of the box are folded from a piece of corrugated fiberboard, which do not need to be nailed and bonded before use. 5 Requirements
5.1 Materials
5.1.1 Corrugated fiberboard used in the manufacture of corrugated boxes is as shown in Table 1. The technical indicators shall comply with the provisions of GB/T 6544. The strength of the fiberboard which is sampled for testing after forming the box is allowed to be less than 10% of the value as specified in this standard.
5.1.2 Corrugated boxes shall be nailed by the use of rust-proof treated metal stapling wire which have a width of 1.5 mm or more. The stapling wire shall not have rust, peeling, cracking or other defects in use.
5.1.3 Adhesive corrugated boxes shall use adhesives that have sufficient bonding strength and meet the relevant standards.
5.2 Dimensions and deviations
5.2.1 The outer dimensions of corrugated boxes shall meet the requirements of GB/T 4892. The ratio of length to width of corrugated boxes is generally not more than 2.5.1; the ratio of height to width is generally not more than 2.1, generally not less than 0.15.1.
5.2.2 The specifications of corrugated boxes are usually expressed in inner dimensions, unfolded dimensions (or manufactured dimensions) or outer
dimensions (in millimeters), which are specified as follows.
- Inner dimension. The clearance size in corrugated boxes is expressed in the order of length, width, height;
- Unfolded dimension. The size of the crimping line at the time of manufacture. The dimensions between the crimping lines when the corrugated boxes are unfolded are expressed in order of length, width, height;
- Outer dimension. The outer dimensions of corrugated boxes, expressed in order of length, width, height.
See Appendix C for the relationship between the three dimensions.
5.2.3 The dimensional tolerance of corrugated boxes is ±3 mm for single corrugated boxes and ±5 mm for double corrugated boxes.
5.3 Mass and structure
5.3.1 The joining of the box can be done by means of stapling wires or
adhesives. The mass of corrugated boxes shall be uniform. There shall be free from such defects as poor adhesion and stapling, irregularities, dirt, scratches, etc.
5.3.2 The width of the margin of the nailing and overlapping tongue of the corrugated box is more than 30 mm for the single corrugated box and more than 35 mm for the double corrugated box. When stapling, the spacing of the stapling lines is not more than 80 mm for a single stapling, and not more than 110 mm for double stapling. For the stapling along the centerline of the overlapping part, it uses the diagonal stapling (about 45° to the vertical edge of the box) or horizontal stapling; the box’s stapling shall be arranged neatly and evenly. The distance from the head and tail stapling to the centerline of the bottom indentation is 13 mm ± 7 mm. The stapling joints shall be tight and penetrated. It shall be free from such defects as overlapped stapling, warped stapling, missing-corners, etc.
5.3.3 The width of the margin of the jointing and overlapping tongue of the corrugated box is not less than 30 mm. The adhesive shall be applied uniformly and sufficiently along the bonding joint, but it shall be free from spillage of excess adhesive. The bonding shall be firm and at least 70% of the bonding faces is broken when peeled off.
5.3.4 The width of the indentation line of the corrugated box shall not exceed 17 mm. The fold line shall be centered; it shall be neither cracked nor broken. There must be no extra indentation lines on the wall of box.
5.3.5 Except for the special-shaped box, the cutting parts and edges of the faces which constitute the box must be at right angles to each other. When indenting and closing, the surface of the corrugated fiberboard shall not be broken, there shall be no significant defects in the cutting part. The cracking width at the cutting surface shall not exceed 8 mm.
5.3.6 The printed figures and texts on the surface of the box is clear, the position is accurate. As needed, print the type or code, date of manufacture,
manufacturer’s information, etc. at an appropriate location of the corrugated box. 5.3.7 The rocking lid of the corrugated box shall be firm and can withstand multiple opening and closing. There shall be no cracks in the surface layer after the test of 6.2, the total length of the crack in the inner layer is not more than 70 mm.
5.3.8 The compressive strength of corrugated boxes is subjected to the plane pressure test according to the method as specified in 6.2.3, the strength value shall be greater than the specified value. The specific parameters can be 7.3.1 According to the requirements of the inspection items of 5.1, 5.2, 5.3.1 ~ 5.3.7, make judgement for single item of corrugated box. If two of them fail, the box is unqualified. If two or more boxes fail in one item, these boxes are unqualified.
7.3.2 If the folding resistance of the rocking lid is unqualified, the box is unqualified.
7.3.3 Except for the compression test of empty box, if the number of unqualified boxes reaches the rejected number as specified in Table 2, the batch is unqualified; if one sample fails to pass the compression test, the batch is unqualified.
8 Marking, packaging, transport and storage
8.1 The packaging mark shall comply with the provisions of GB/T 191.
8.2 The packaging method and requirements for corrugated boxes shall be agreed between the supplier and the purchaser.
8.3 Corrugated boxes shall avoid rain, snow, sun exposure, moisture and pollution during storage and transport. It shall not use the transport, handling method and tools which may deteriorate the quality of corrugated boxes. 8.4 Corrugated boxes shall be stored in a ventilated and dry warehouse, the distance from the bottom layer to the ground is not less than 100 m. In case of short-time storage in open air, it shall take necessary measures to avoid rain and sun exposure.
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