GB/T 6847-2012 Active National standards

GB/T 6847-2012 Imaging materials—Photographic film and paper—Determination of curl

Publish Date: 2012-12-31 Implement Date: 2013-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 6847-2012

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Information using chemicals

ICS Name: Photographic paper, film, and darkroom trays

Publish Date: 2012-12-31

Implement Date: 2013-08-01

Pages: 11 pages

Scope

This standard specifies the methods for measuring and quantitatively expressing the curl performance of loose-leaf, roll, or strip photographic films and photo paper before and after processing.
This standard specifies three measurement methods: Method A is a method for measuring curl when the sample is kept vertical, and Methods B and C are methods for measuring curl when the sample is kept horizontal. Due to the different shapes and sizes of the samples, the values obtained by the three methods cannot be compared with each other.
These methods cannot be used to determine the curl performance of photosensitive materials during the processing or drying process.
Note: Curl performance is a physical property of imaging materials. For the numbering method of international standards related to the physical properties and stability of imaging materials, see Appendix A.