Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitionsopens in a new window or tab
Brand
Unbranded
Type
Pencil hardness tester
MPN
Does not apply
Model Number
QHQ-A
UPC
Does not apply

Item description from the seller


3223411

 

Requirements
 
1. GB1279-79 "Preparation of paint film," the preparation of three pieces of test, usually a flat tinplate 120 * 50 * (O.2-0.3) mm,
   Or the product of the provisions of the substrate and size.
 
2. Test conditions: according to product standards or construction requirements of the conditions.
 
 
 Instructions:
 
 
1, Place the instrument flat on the test strip (If the test strip is smaller than the instrument, place the test strip in front of the instrument and place the pad below the front of the instrument for the purpose of keeping the instrument level).
2, using a razor blade pencil so that the protruding portion of the pen is about 2-5mm, and polished in sandpaper, and then the pencil into the instrument, the pen core and the test piece after contact and fixed lock (recommended: pencil for six Polygonal, fixed to choose a plane,
    After the test, rotate the two plane and then fixed the test, then rotate the two plane fixed test, a circle can be used
    Three times) to remove the gasket during the test.
3, with the thumb and middle finger caught in the center of the two wheels. Push the instrument about 1-2cm backward to remove the instrument (do not apply any pressure when pushing the instrument).
Judgment of hardness, to see whether the scratch scratch film. Proposed to do at least three test strips above the location, take the average. Hardness of the series, the standard pencil from soft to hard 6B 5B 4B 3B 2B HB H 2H 3H 4H 5H 6H (a total of 13).