Synonym : Grit / Shot Blasting Comparator
Caltech India offers CES 189 ISO Surface Roughness Comparator (Grit/Shot). We also offer grit blasting and shot blasting comparator. A precision Nickel comparator plate which conforms to International Standard ISO 8503 for grit and shot blast surface roughness comparison measurement. Popular comparators for grit blasting comparison or shot blasting comparison
When steel has been blast cleaned, the surface consists of random irregularities with peaks and valleys that are not easily characterized. Experts have recommended that the profile should be identified as dimpled (shot blast) or angular (grit blast) and that they should be graded as Fine, Medium or Coarse with each grade being defined by limits specified in ISO 8503, these characteristics are considered to give sufficient distinguishing features for most painting requirements.
Easy to use, place the surface roughness comparator against an area of the test surface, compare in turn the four sectors of the four sectors of the comparator against the test surface using the X7 magnifier, placed so that the test surface is viewed. There are two comparators shot blasting, and grit blasting, these are specially designed to check the roughness of steel surfaces which have been blast cleaned to cleanliness grades SA 2.5 and SA 3 before painting. Both surface roughness comparators conform to ISO 8503.
Simultaneously with a segment of the comparator, the nearest profile to the comparator determines the grade of grit blasting comparator or shot blasting comparator. The different grades are defined as follows:
| Grade | Profiles |
| Fine | Equal to Segment 1 and up to, but excluding, Segment 2 |
| Medium | Equal to Segment 2 and up to, but excluding, Segment 3 |
| Coarse | Equal to Segment 3 and up to, but excluding, Segment 4 |
Both Shot blasting comparators and Grit blasting comparators are supplied in a Protective Wallet.
Standards: AS 3894.5, ASTM D 4417-A, ISO 8503-1, ISO 8503-2, SSPC PA 17
Ordering Information:
| CES 189 – ISO Surface Roughness Comparator (Grit/Shot) | ||
| Model Number | Description | Section Profiles |
| CES 189/1 | ISO Surface Roughness Comparator – Grit | 25, 60, 100, 150μm |
| CES 189/2 | ISO Surface Roughness Comparator – Shot | 25, 40, 70, 100μm |
In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.
We also export our range of products to worldwide countries like USA, Canada, Chile, United Kingdom – UK, Spain, Germany, Italy, Dubai, Abu Dhabi, U.A.E, Oman, Saudi Arabia, Singapore, Kuwait, Iran, Indonesia, Thailand, and many more as well.
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