7. 1 Typesetting specifications The text uses No.3 imitation Song characters, with 22 lines on each side and 28 words in each line. 3 Definitions The following definitions are adopted in this standard. 3. 1 Word identifies the length unit of the horizontal distance in the official document. A word refers to the space occupied by a Chinese character. Line 3.2 identifies the length unit of the longitudinal distance in the official document. This standard takes the height of No.3 plus the distance of 7/8 times of the height of No.3 as a reference line. 4 Main technical indicators of official document paper Official document paper generally uses offset printing paper or copy paper with a paper weight of 60g/m2~80g/m2. Paper whiteness is 85%~90%, transverse folding endurance ≥ 15 times, opacity ≥85%, and pH value is 7.5~9.5. 5. Format and layout size of official document paper 5. 1 Format size of official document paper adopts A4 paper specified in GB/T 148, and its finished product format size is 2 10mm×297mm. See GB/T 148 for the allowable deviation of size. 5.2 official document margin and edition center size official document paper top (upper white margin) is 37 mm1mm official document paper binding mouth (left white margin) is 28 mm1mm edition center size is: 156mm×225mm (excluding page numbers) 6 The colors of pictures and texts in official documents are not. 7 Typesetting specifications and printing and binding requirements 7. 1 Typesetting specifications The text uses No.3 imitation Song characters, with 22 lines on each side and 28 words in each line. 7.2 Plate-making requires a clean layout with no bottom ash, clear handwriting and no broken lines, standard size, no inclined plate center, and an error of no more than1mm.. 7.3 Printing requires double-sided printing; The page number is set correctly, and the error on both sides shall not exceed 2mm. Black ink should reach BL 100% as indicated by chromatography, and red ink should reach Y80% and M80% as indicated by chromatography. The printed matter is solid and even; Literally, it is not flowery, white or broken. 7.4 Binding requires that the official document should be bound on the left side, without losing pages. The cover and book block of the official document do not fall off, and the back is flat and empty. Two-page page number (official document format of state administrative organs GB/T9704- 1999 replaces GB/9704- 1988)