Standard for square barrels of the hottest packagi

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Standard for square barrels of packaging containers

normal align=center> national standard of the people's Republic of China

normal align=center> square barrels of packaging containers

normal align=center>gb/t

normal>1 scope

normal> this standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of rectangular steel barrels (hereinafter referred to as square barrels) with a volume of less than or equal to 18L

This standard is applicable to the manufacture, use, circulation, supervision and inspection of square barrels

normal>2 reference standard

normal> the provisions contained in the following standards constitute provisions of this standard through reference in this standard. At the time of publication of this standard, the editions shown are valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest editions of the following standards

normal>gb sampling procedure and sampling table for batch by batch inspection by attributes (applicable to continuous batch inspection)

normal>gb/t 4857 Static load stacking test method for packaging and transportation packages

normal>gb packaging terminology metal container

normal>gb packaging container steel barrel closer

normal>gb/t packaging and packaging container air tightness test method

normal>3 definition, symbol

normal>3.1 definition

normal> the standard adopts the definition of GB 13040

normal in recent years>3.2 symbol

normal>ai -- inner side length

normal>ao -- outer side length

normal>bi -- inner width

normal>bo -- outer width

normal>hi -- internal height

normal>ho -- external height

normal>4 classification and structure size

normal>4.1 classification

normal> square barrels are divided into 2 categories and 6 specifications according to their appearance, as shown in Table 1

normal> for example, class I of 1 ton or above is a square barrel with square cross section

normal> class II refers to square barrels with rectangular cross section

normal> Table 1 Classification of square barrels l

norm3 Computer operation al style= "margin-top:

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