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.
Technical Attributes
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
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Knowledge
A comprehensive guide to Abrasion Resistance
We are confronted with abrasion resistance every day. Whether it is your shiny new bathroom floor that is beginning to fade or a scratch on the case of your new phone or car. Abrasion can ruin a day in a moment. So how do we test and improve our coatings on these appliances to mitigate the chance of this happening? In this article we will discuss what abrasion resistance is, how it relates to other physical properties, and what tools and methods are needed to measure it.
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