Grind Gages - µm / Hegman / North, 2 paths
Article No. 2516
Grind Gage No. 5252-N
Grind gage - groove depth range 0-50 µm / 5-10 North
- Path Size: 12.7 x 127 mm
- No. of Paths: 2
- Scales: Microns/Hegman/North
- Range: 0 - 50/4 - 8/5 - 10
Certificate:
Features
The Fineness of Grind Gage is a flat steel block in the surface of which are two flat-bottomed grooves varying uniformly in depth from a maximum at one end of the block to zero near the other end. Groove depth is graduated on the block according to one or more scales used for measuring particle size.
The Hegman scale or National Standard scale may be abbreviated "NS" on the gage. The scale ranges from 0 to 8 with numbers increasing as the particle size decreases.
- 0 Hegman = 4 mil/100 micron particle size
- 4 Hegman = 2 mil/50 micron particle size
- 8 Hegman = 0 mil/0 micron particle size
North Scale
A lesser-used scale, also occasionally employed in the paint industry. Like the Hegman scale, it is also inverted compared to the value in microns.
- Grind blocks made of high quality, corrosion resistant stainless steel for extended use
- Dual channel designs
- Groove depth is graduated on the block showing µm, Hegman and North scales
Technical Attributes
-
- Path Size
- 1.3 x 12.7 cm
-
- Scales
- µm, Hegman, North
-
- No. of Paths
- 2
-
- Range
- 0 - 50 µm
-
- Range
- 4 - 8 Hegman
-
- Range
- 5 - 10 North
-
- Weight
- 1.8 kg
-
- Weight
- 4 lb
-
- Dimensions: L x W x H
- 17.2 x 6.4 x 1.3 cm
Technical Specifications
General
Standards
Procedure
Place a slight excess of sample in the deep end of the groove and, with the straight-edge scraper provided, draw the sample toward the shallow end of the groove. Ratings are in terms of the point on the scale where the oversize particles, or traces made by them, first appear in substantial concentration.
Care of Grind Gages: Clean the gage after each use. Use a solvent and a soft cloth. Keep the gage covered or encased at all times when not in use. Protect gages that lie idle for extended periods of time from rust with an oil coating or an oil soaked wrap.
Delivery Content
Grind block
Scraper (2514)
Storage case
Scraper (2514)
Storage case
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