Valid

GB/T 28625-2012Test chart for color copiers (English PDF)

彩色复印机测试版

Preview PDF

This is a limited preview

Buy now to download the full PDF (18 pages)

Need quotation for your management?

Get a formal quotation for GB/T 28625-2012 in 30 minutes.

Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 31, 2012

Implementation date

November 1, 2012

Scope

GB/T 28625-2012 is the English-translated version of 彩色复印机测试版.

GB/T 28625-2012 is the Chinese standard "Test chart for color copiers". Its scope clause reads: This standard specifies the basic requirements for color copiers Beta.

Color copier is a beta test version, which includes an integrated version (A3, A4), cyan (C), magenta (M), yellow (Y), black (K) panchromatic Edition (A3, A4) and ghosting version (A3, A4).

This standard specifies the test version of the size, version of the sample and production methods, and be described in detail the structure and function of beta.

This standard Beta also provides quality inspection methods, inspection rules and signs, packaging, transportation, storage and so on. This standard applies to color copiers and color multifunction device having a copy function. Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 28625-2012

National Standard of the People's Republic of China

ICS: 37.100.01
Classification: N 47

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Beta 2 production
5 color copier beta --- Comprehensive Edition (A3, A4)
6 Color Copier beta --- cyan (C), magenta (M), yellow (Y), black (K) full-color version (A3, A4)
7 color copier beta --- ghost version (A3, A4)
8 beta quality inspection
9 inspection rules
10 signs, packaging, transportation and storage

1 Scope

This standard specifies the basic requirements for color copiers Beta.

Color copier is a beta test version, which includes an integrated version (A3, A4), cyan (C), magenta (M), yellow (Y), black (K) panchromatic

Edition (A3, A4) and ghosting version (A3, A4).

This standard specifies the test version of the size, version of the sample and production methods, and be described in detail the structure and function of beta. This standard

Beta also provides quality inspection methods, inspection rules and signs, packaging, transportation, storage and so on.

This standard applies to color copiers and color multifunction device having a copy function.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 13963-2008 copier term

GB/T 18721-2002 printing technology Prepress digital data exchange - CMYK standard color image data (CMYK/SCID)

3 Terms and Definitions

GB/T 13963-2008 defined and the following terms and definitions apply to this document.

3.1 Chromatogram coloratlas

With standard cyan (C), magenta (M), yellow (Y), black (K) toner, a different dot percentage of each color overprint color combined.

3.2 Chromatic error outofcolorregistration

Means [cyan (C), magenta (M) color, yellow (Y) color, black (K) color] pixel position offset between the colors in the color image.

3.3 Color density

Density is measured by a color image of red, green, blue color filter. Common logarithm of the reciprocal of the reflectance with Fig.

Note. All standard color density values are ISO A state density.

3.4 Color colordifference

Two color hue, saturation and brightness integrated difference, with the three-dimensional space CIELAB two color difference deltaE * ab represents,

I.e. deltaE * ab = [(deltaL *) 2 (deltaa *) 2 (deltab *) 2] 1/2

Where, deltaL * is CIELAB lightness difference; deltaa *, deltab * CIELAB chromaticity index is poor.

3.5 Grey deviation graydifference

The extent of its deviation from the grayscale color values in a color copying.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

Referenced standards

Cited by

Similar standards

GB/T 33713-2026|GB/T 9851.6-2026|GB/T 18892-2024|GB/T 10073-2021|GB/T 30329.5-2019|GB/T 34690.10-2018

How to Download GB/T 28625-2012

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.