T/NBWJ 04-2021 notebook computer

Scope

Main Technical Content: 1. The main content of this standard includes 8 chapters: scope of notebooks, normative references, terms and definitions, classification, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage. The main content is as follows: - The technical requirements of the standard are consistent with the QB/T 1438-2007 "Books" standard, with some indicators being improved. New safety requirements have been added, as detailed in the table below. - The serial number and item are as follows: - **Item 1**: Appearance. - The inner core paper surface should be smooth, without loose pages, folds, wrinkles, or incomplete or reversed pages. There should be no significant misregistration in overprinting. - Exposed metal parts should be smooth without burrs, without obvious deformation or rust stains. Buckles should be fixed and not fall off. - The textile cover should be clean without stains or broken threads. The stitch density should be uniform, without skipped stitches or thread breaks. - The leather or plastic cover should be smooth without obvious damage or deformation. The product cover and back cover should be flat and clean, with clear text and patterns. The misregistration in overprinting should not exceed 0.2mm for offset printing, and 0.5mm for other printing methods. - The allowable deviation in deviation is ±1.0mm for deviation and ±1.5mm for two-sided deviation. - **Item 2**: Number of inner cores. - There should be no missing pages in notebooks with fewer than 100 inner cores, but up to 2 missing pages are allowed in notebooks with 100 or more inner cores. - **Item 3**: Two-sided line deviation. - The deviation should be ≤1.0mm for deviation and ≤1.0mm for two-sided deviation. - **Item 4**: Broken threads. - Broken threads are not allowed. - **Item 5**: Holes are not allowed. - **Item 6**: Blank pag

Development Information

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