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www.ChineseStandard.net Database: 189760 (18 Oct 2025)

GB/T 19893-2025 English PDF

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GB/T 19893-2025: Digital color photographic print system
Status: Valid

GB/T 19893: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 19893-2025	English	359	Add to Cart	4 days [Need to translate]	Digital color photographic print system	Valid	GB/T 19893-2025
GB/T 19893-2005	English	259	Add to Cart	3 days [Need to translate]	Digital color print system	Valid	GB/T 19893-2005

Basic data

Standard ID	GB/T 19893-2025 (GB/T19893-2025)
Description (Translated English)	Digital color photographic print system
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N46
Classification of International Standard	37.040.10
Word Count Estimation	18,149
Date of Issue	2025-08-29
Date of Implementation	2026-03-01
Older Standard (superseded by this standard)	GB/T 19893-2005
Issuing agency(ies)	State Administration for Market Regulation, National Standardization Administration

GB/T 19893-2025: Digital color photographic print system

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT19893-2025
ICS 37.040.10 CCSN46 National Standard of the People's Republic of China Replaces GB/T 19893-2005 Digital color printing system Released on August 29, 2025 Implementation on March 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Technical Requirements 2 5 Test methods 4 6 General test conditions 9 7 Inspection Rules 9 8 Marking, packaging, transportation and storage 10 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 19893-2005 "Digital Color Printing System". Compared with GB/T 19893-2005, except for the structural adjustment and In addition to editorial changes, the main technical changes are as follows. --- Added the test chart and calculation formula of the test method "color density uniformity" (see 5.3); --- Added the test chart of the test method "enlargement resolution" (see 5.4); --- Changed the calculation formula of the test method "distortion" (see 5.5, 5.5 of the.2005 edition); --- Deleted the relevant technical requirements and test methods for film scanners (see 4.9 and 5.9 of the.2005 edition); --- Added the calculation formula of the test method "density correction" (see 5.10); --- Added the calculation formula of the test method "color correction" (see 5.11); --- Added the test chart of the test method "grayscale reproduction" (see 5.12); --- Added the test chart for the test method "color reproduction" (see 5.13). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Photographic Machinery (SAC/TC107). This document was drafted by. Shanghai Prism 3D Technology Co., Ltd., Hangzhou Photographic Machinery Research Institute Co., Ltd., Beijing Unicolor Technology Co., Ltd. Technology Development Co., Ltd., Hangzhou Guozhao Testing Technology Co., Ltd., Guangzhou Senyang Electronic Technology Co., Ltd., Shenzhen Baibu Yinshe Technology Co., Ltd. company. The main drafters of this document are. Hou Feng, Ge Shiqing, Xu Jun, Wang Jun, Chen Zhaohui, and Zhang Zhiguo. The previous versions of this document and the documents it replaces are as follows. ---First issued in.2005 as GB/T 19893-2005; ---This is the first revision. Digital color printing system

1 Scope

This document specifies the technical requirements for digital color printing systems, describes the corresponding test methods, specifies general test conditions, and inspects Rules, marking, packaging, transportation and storage requirements. This document applies to the design, manufacture and inspection of digital color printing systems that output silver halide photos.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB 4943.1-2022 Audio, video, information technology and communication technology equipment Part 1.Safety requirements GB/T 10973 Color photographic paper processing machines GB/T 13384 General technical requirements for packaging of electromechanical products GB 22449 Safety protection requirements for color processing equipment JB/T 14302 Packaging, transportation, storage conditions and test methods for photographic machinery

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 An operation key that changes the exposure of three colors simultaneously according to a certain ratio. 3.2 Color correction key keyofcorrectingcolor An operation key that changes the exposure of any (specified) color among the three colors according to a certain proportion. 3.3 Standard gray image standardgreyimage In a 24-bit color system with 8 bits per color, the brightness of the three colors R, G, and B is 128 for each data image. 3.4 A standard pattern of brightness steps from black to white. 3.5 Print resolution The resolution of the enlarged photo. Note. The unit is dots per inch (dpi) or line pairs per millimeter (lp/mm).

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