QB/T 2858-2007 English PDF (QBT2858-2007)

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QB/T 2858-2007: Schoolbags
QB/T 2858-2007
QB
NATIONAL LIGHT INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 97 180
Y 50
Reference No. 21452-2007
Schoolbags
学生书袋
ISSUED ON. MAY 29, 2007
IMPLEMENTED ON. DECEMBER 1, 2007
Issued by. National Development and Reform Commission, People's
Republic of China
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Classifications ... 5 
4 Requirements ... 5 
5 Test methods ... 9 
6 Inspection rules ... 10 
7 Marks, packaging, transport, storage ... 12 
Foreword
This Standard referred to the German standard DIN 58124-2000 Schoolbags.
This Standard was proposed by China Light Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee
on Sports and Recreational Articles of Standardization Administration of China.
Main drafting organizations of this Standard. Foshan Shunde District Kai Digital
Technology Co., Ltd. (Foshan Shunde Lunjiao Intellectual Stationery Handbag
Factory), Fujian New Generation Industrial Co., Ltd.
The drafting organizations of this Standard. Zhongshan Lianzhong Stationery
Gifts Co., Ltd., Fuzhou United Stationery Gifts Co., Ltd., Fujian Jinjiang Sanhe
Stationery Gifts Co., Ltd.
Main drafters of this Standard. Feng Deqiang, Feng Xuexin, Zheng Chengqiang,
Li Yanli, Tang Xiaofeng, Xu Shu.
This Standard was issued for the first time.
Schoolbags
1 Scope
This Standard specifies the classification, specifications, requirements, test
methods, inspection rules and marks, packaging, transport, storage of
schoolbags.
This Standard is applicable to shoulder bags, backpacks and handbags mainly
used to place teaching textbooks, supplementary materials and student
supplies. Other bags with similar functions can refer to this Standard for the
implementation.
2 Normative references
The following standards contain the provisions which, through reference in this
Standard, constitute the provisions of this Standard. For dated references,
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest versions of these
documents are applicable. For undated reference documents, the latest
versions apply to this Standard.
GB/T 2828.1-2003, Sampling procedures for inspection by attributea-Part1.
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection
GB/T 2829-2002, Sampling procedures and tables for periodic inspection by
attributes (Apply to inspection of process stability)
GB/T 2912.1-1998, Textiles--Determination of formaldehyde--Part 1. Free
and hydrolized formaldehyde (Water extraction method)
GB/T 3920-1997, Textiles - Tests for colour fastness--Colour fastness to
rubbing
GB 6675-2003, National safety technical code for toys
QB/T 3826-1999, Corrosion-resistant testing method of the metal deposits
and conversion coatings for the light industrial products--Neutral salt
spraying test (NSS)
QB/T 3832-1999, Evaluation of the corrosion test results of the metal
5 Test methods
5.1 Specification
Use a steel ruler of which the scale value is 1 mm to measure.
5.2 Weight-bearing
5.2.1 Swing test
The schoolbags shall bear weight according to the provisions. It shall
respectively test the straps and handles. hang in suspension and the straps
shall be in the longest state; OR adjust the distance to the swing axis as 50 cm
~ 60 cm. Swing 30 times (a round trip is regarded as 1 time). Swing angle is
(60 ± 3)°. When swing stops, inspect whether the straps, handles, adjustment
belts, hooks and loops are firm. Within 2 mm, measure the lengths of parts as
connection role. Compared with the original length, check if the deformation
exceeds 20%.
5.2.2 Static, falling tests
Measure the lengths of parts as connection role. The bag shall bear the weight
1.2 times the specified weight. Hang in suspension (the straps are in the longest
state). The height from the bag bottom to the ground (the ground surface is
hardwood board) is 60 cm. Make the force even and in static state. After 30 min,
make it fall vertically. Inspect whether the straps, handles, adjustment belt,
hooks and loops are firm. Within 2 mm, measure the lengths of parts as
connection role. Compared with the original length, check if the deformation
exceeds 20%.
5.3 Tests of other performances
5.3.1 Suture strength
Take two pieces of suture fabric from the main part of the schoolbag of which
the area of each piece is 60 mm × 60 mm. The upper and lower fixture width is
50 mm, depth is (30 ± 2) mm. Use tension machine to test at a tension speed
of (100 ± 10) mm/min till it breaks (thread or fabric). Take the maximum value
as the test result. The the reading on the tension machine exceeds the specified
suture strength value but the sample is not broken, it shall suspend the test.
5.3.2 Electroplating accessories
Carry out the test according to QB/T 3826-1999. Evaluate the test results
according to QB/T 3832-1999.
5.3.3 Zipper durable fastness
7 Marks, packaging, transport, storage
7.1 Marks
7.1.1 The product’s name, manufacturer (or distributor) name, address,
trademark, standard reference used, production date or lot number should be
marked on the product (or packaging).
7.1.2 The schoolbag mark (label) should be marked with specifications,
material, if necessary, there should be washing instructions and instructions on
use.
7.2 Packaging
The inside and outside of the product should be packed in plastic or paper, and
the certificate should be placed. The outside packaging is carton.
7.3 Transport
During transport, pay attention to the use of cover tools to prevent the sun, rain.
7.4 Storage
Store in a dry and ventilated place. It should be more than 200 mm away from
the wall, more than 100 mm away from the ground. It should not be stored with
chemical corrosions.