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适用范围：<p>This practice assists users in selecting appropriate performance characteristics of corrugated fiberboard or box construction, or both, commensurate with the user''s need for packing and distribution of goods. This practice describes several attributes of fiberboard and boxes which relate to various hazards encountered in distribution and describes test parameters which may be specified by the user to ensure sufficient strength in the box for containment, storage, handling, and protection of contents.</p> <p>The user should specify only those attributes and related tests which are required for satisfactory performance in the user''s operations and distribution cycle(s). When using packaging regulations as a basis for developing specifications, the reason for the existence of the regulation and its function and importance should be understood. As previously stated, regulations may be exceeded and should be when the minimum specifications are inadequate for the full effects of the distribution cycle. If the user decides to employ box compression strength or a rough handling performance protocol as the overriding specification, it should be noted that all minimum standards required by various organizations shall also be met or surpassed. These minimum standards can be stated in the box drawing so as to ensure adherence to regulations If a Box Manufacturer<span class=''unicode''>x2019;</span>s Certificate (BMC) is printed on the box, then the ECT or Mullen Burst/Basis Weight values shall meet or exceed the minimum requirements for size and weight of the packaged product.</p> <p>See Appendix X7 for several examples of specification determinations.</p><p id="s00002">1.1 This practice provides information on corrugated fiberboard for the prospective user who wants guidance in selecting attributes of materials and box construction based on performance requirements. These attributes should be part of specifications which establish levels of the qualities a shipping container shall have in order to be acceptable to the purchaser or user. The attributes and qualities should be testable, using standard methods that are recognized by both the buyer and seller. This practice will assist users in developing specifications for corrugated containers through an analysis of performance requirements and subsequent relationships to fiberboard materials and box construction attributes. This practice is intended to provide specific corrugated container performance standards as opposed to packaged product performance evaluation through distribution and handling environments, such as Practice <a href="http://myastm.astm.org/SUBSCRIPTION/NewValidateSubscription.cgi?D4169-HTML">D4169</a>.</p> <p id="s00003">1.2 The attributes and their levels should be based on the intended use of the box, including the handling and environment it will encounter. Many packaging regulations include detailed descriptions of the materials that may be used and style, closure, or other construction details of allowed shipping containers. These regulations are presented as minimum requirements; they may be exceeded for functional reasons, but there is no regulatory reason to do so. Rail and motor freight classifications applicable for surface common carrier transportation have established minimum requirements for certain attributes of corrugated packaging. These may or may not be appropriate for application in the complete distribution system, as they encompass only containerboard or combined corrugated board<char: emdash>not finished boxes<char: emdash>and are not intended to provide for the distribution system beyond the transportation segment.</p> <p id="s00100">1.2.1 The attribute levels contained herein are based on US practice and specifications. Some attributes such as flute dimensions and basis weights may be defined differently in other countries. </p> <p>1.3 There are two distinctly different methods commonly used for specifying boxes. Th......