Mobile phone outer surface printing test specification Mobile phone outer surface printing test specification Scope This standard specifies the appearance inspection and performance test methods of printed fonts (or patterns) on the surface of mobile phone structural parts. Normative references GB/T 9286-1998 Cross-cut test for paint and varnish film GB/T 2423.3-1993 Basic environmental testing procedures for electrical and electronic products Test Ca: Steady damp heat test method Terms and definitions The following terms and definitions apply to this standard. The definition of bad defects is specifically shown in Articles 4.1 and 4.2. Defect code comparison table Defect code comparison table is shown in Table 1. Table 1 Defect code comparison table | Code | Name (unit) | Code | Name (unit) | | N | Number (pieces) | D | Diameter (mm) | | L | Length (mm) | H | Depth (mm) | | W | Width (mm) | DS | Distance (mm) | | S | Area (mm2) | | | Mobile phone inspection conditions and environment The rules for mobile phone inspection conditions and environment are as follows: a) Distance: The distance between the human eye and the surface of the object to be tested is 300mm to 350mm; b) Time: The inspection time for each piece shall not exceed 12s (including the inspection time of the shell); c) Position: The inspection surface is 45° with the desktop; rotate 15° up and down and left and right; d) Lighting: 100W cold white fluorescent lamp, the light source is 500 mm to 550mm away from the surface of the object to be tested, (illuminance reaches 600Lux to 800Lux). Inspection of printed fonts and patterns Appearance inspection See Table 2 for appearance inspection. Table 2 (Appearance inspection of printed fonts and patterns) | NO | Defective items | Content description...
You Might Like
Recommended ContentMore
Open source project More
Popular Components
Searched by Users
Just Take a LookMore
Trending Downloads
Trending ArticlesMore