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QB/T 2332-1997 PDF in English

QB/T 2332-1997 (QB/T2332-1997, QBT 2332-1997, QBT2332-1997)
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QB/T 2332-1997: PDF in English (QBT 2332-1997)

QB/T  2332‐1997 
[Classification Number] Y26
Record No.. 932-1997
Stainless steel vacuum insulation vessel
Issued by. China Light Industry Association
Table of Contents
Foreword ... 3 
1  Scope ... 5 
2  Normative references ... 5 
3  Classification, part name and specifications ... 6 
4  Technical requirements ... 7 
5  Appearance ... 9 
6  Materials ... 10 
7  Test methods ... 10 
8  Inspection rules ... 13 
9  Mark, packaging, transportation and storage ... 14 
This standard non-equivalently adopts Japanese Industrial Standard JIS S 2053-1994
Stainless steel insulation vessel.
In addition to the portable stainless steel insulation vessel, this standard adds desktop
insulation vessel, big-mouth insulation vessel, and insulation cup.
The small-mouth insulation vessel of which the capacity is lower than 0.4L, the big-mouth
insulation vessel, and insulation cup are mainly used to store drinks and food. They will
not maintain for a long time under normal using circumstances, so the temperature
measurement time for insulation vessel of which the capacity is lower than 0.4L is 12h; the
temperature measurement time for big-mouth insulation vessel and insulation cup is 6h.
The portable insulation vessel must do tightness test.
This standard specifies that the strap-type insulation vessel shall do swing impact test, the
others shall do fall impact test.
Taking the usage characteristics of the products into account, this standard has strict rules
on the hygiene requirements of materials of plastics parts and stainless steel liner. The
thickness of the material is not specified.
The strap color fastness test in this standard adopts the requirements of GB 3922-1983
the textile’s color fastness to perspiration test method.
Taking the characteristics of small volume, heavy weight of the stainless steel insulation
vessels into account, the stacking height must not exceed 3.0m.
Tightness performance test method; impact resistance test method; fitness test of the cork
installation; mounting strength test of the strap and handle; smell of the water in capacity,
cork and the container; and coating adhesion test specified in this standard ADOPT the
relevant provisions of JIS S 2053-1994 stainless steel insulation vessel.
This standard was proposed by the China Light Industry Association’s Quality Standard
This standard shall be centralized by the National Daily Glass Enamel Standardization
Drafting organizations of this standard. China Light Industry Association’s Glass Enamel
Institute, Shanghai Insulation Vessel Company, Hubei Jingjiang Ltd., Hebei Kaiyuan
Industrial Co., Ltd., and Guangzhou Insulation Vessel Industrial Company.
The main drafter of this standard. Zhang Guoxiu, Pan Fengfang, Sun Zhongrong, Cui
Renquan, and Chen Yumei.
This standard was first-time issued on December 4, 1997.
Light Industrial Standard
of the People’s Republic of China
QB/T 2332-97
Stainless steel vacuum insulation vessel
1  Scope 
This standard specifies the product classification, technical requirements, test method,
acceptance rules and mark, packing, transportation and storage of the stainless steel
vacuum insulation vessel.
This standard applies to the stainless steel vacuum insulation vessel used to store hot and
cold drinks and food for daily use (hereinafter referred to as "insulation vessel”)
2  Normative references 
The articles contained in the following documents have become part of this standard when
they are quoted herein. For the dated documents so quoted, all the modifications or
revisions made thereafter shall not be applicable to this Standard. For the undated
documents so quoted, the latest editions shall be applicable to this Standard.
GB 2828-1987 Sampling procedures and tables for lot-by-lot inspection by
attributes (Apply to inspection of successive lots or batches)
GB 3280-92 Cold rolled stainless steel sheets and plates
GB/T 3922-1995 Textiles--Testing method for colour fastness to perspiration
GB 4239-91 Cold rolled stainless steel and heat-resisting steel strips
GB 4807-84 Hygienic standard for rubber sealing washer for food container
GB/T 5009.60-1996 Method for analysis of hygienic standard of products of polyethylene
polystyrene and polypropyrene for food packaging
GB/T 5009.64-1996 Method for analysis of hygienic standard of rubber sheet (ring) for
food use
obvious zigzag, deflated sub, wrinkles, rust and other defects. Welds are smooth without
welding tumor.
5.3 Plastic parts shall be processed well. Plasticizing is uniform, with smooth surface,
uniform color, no serious rub hair, no inadequate molding and other obvious defects.
5.4 Strap and other parts fit with the body, with being installed well.
6  Materials 
6.1 Stainless steel liner’s material shall comply with the provisions of GB 9684 2.1, or it
uses the material having the same or better quality.
6.2 The materials of other stainless steel parts shall be consistent with the materials
regulated by GB 3280 or GB 4239 or use materials having the same or better quality.
6.3 The materials of seal rings and rubber plastic parts that contact food shall be
consistent with the provisions of Table 6, or use materials having the same or better
7  Test methods 
7.1 The insulation performance test of finished products
Conduct the insulation test to the finished products according to 3.1 in GB 5430. It shall
use the finished cork.
7.2 Capacity measurement
The MASS of the insulation vessel which is filled with normal temperature water (5-35°C)
to spill-over-full AND the sealing cork IS SUBTRACTED by the MASS of the insulation
vessel which is without water and with the sealing cork. Then convert the mass into
capacity (1 g of water is converted into 1 mL).
7.3 Impact resistance test
7.3.1 Drop test
In the condition of use, fully-fill the non-strap insulation vessel, which has been qualified
for insulation effectiveness, with the normal temperature water (5-35°C). Then hang it up
(as shown in Figure 5). Drop it from 400 mm height to 300mm-thick hard block board
which is fixed horizontally. Inspect it according to the relevant provisions of Table 6.
Chapter 4. After all items are qualified, it is deemed as qualified.
9  Mark, packaging, transportation and storage 
9.1 Marking
9.1.1 There shall be visible sign on each product or its packaging. Mark the name,
capacity, manufacturing factory name, brand and quality grade of the product. And attach
the instructions and the certificate.
9.1.2 The instructions shall indicate the product name, capacity, caliber, manufacturing
factory name, and quality grade. And it shall indicate contents such as use method,
precautions in use, executed standard, quality assurance and exchange requirements.
9.1.3 Transport packaging shall indicate the factory name, article number, grade,
quantity, package size, volume, weight, and date of packing.
9.1.4 Marks like damp-proof, handle-with-care, upside-down forbidden shall be
specified on the packing-case. And the marks shall conform to the provisions of GB 6388.
9.2 Packaging
9.2.1 Packaging can be divided into sales packaging and transport packaging.
9.2.2 The insulation container shall be packed in plastic film suit and then put into the
sales packaging.
9.2.3 Single corrugated carton and double corrugated carton which meet the
requirements of GB 6543 standard shall be used for the transport packaging. The bottom
and cover of the box shall be adhered by seal. When sealing, banding belt shall be in
moderate loose-tight.
9.3 Transportation
9.3.1 When transporting, it shall be avoided from damp, rain and violent vibration.
9.3.2 When transporting, it shall be handle with care. It must not be stepped or
upside-down. Throwing is not permitted.
9.4 Storage
9.4.1 The storage place shall be dry and ventilated, not suffering from rain or snow, to
prevent from damp.
9.4.2 The stacking height shall not be more than 3.0m. It shall avoid to be mix-stored
with substances such as oil, acid, and alkali.
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.