NEC MultiSync FP1370 Service Manual page 88

3-3. Reflectance
Less than 0.7% (at the screen center)
3-4. Reflected color unevenness
The reflected color unevenness which can be confirmed easily in visual check must not exist.
3-5. Strength
Wear and abrasion resistance: Coating should withstand 30 - minute scrubbing with a #50 eraser.
Pencil resistance : Coating should withstand 3H pencil. (according to conformed item of Coating
[Supplementary explanation]
Definition of striped coating (tear) and flaw (rubbed coating). (according to JIS)
Striped coating (tear) : Tear that reaches to the glass surface.
Flaw (rubbed coating) : Scratches that slightly dig into the surface of the coating
3-6. Stain, blur, unevenness, and other faults
The flaws must not be to be distinguishable in white raster or green raster.
4. Notice for cleaning up the surface of faceplate filmed over by the AR - film.
4-1. Do not rub CRT surface with hard objects or hit CRT surface.
4-2. Wipe off the dust softly with a dry soft cloth.
Do not use acid cleaner, alkaline cleaner, and solvent thinner.
Use water, alcohol, neutral glass cleaner or detergent when stain cannot be removed with drying
cloth.
If the stain sticks to CRT surface, be quick to take out the stain from CRT.
4-3. Be careful not to damage or scratch CRT surface with a hard foreign object, etc. while cleaning.
(load; 500g)
Strength JIS - 5400)
6-8