Overview
JFL QXP 0-25 Grindometer is manufactured in accordance with international standards ISO1524 and GB/T 1724-2019 for the determination of particle fineness of Paints and related products. The model is single-channe Grindometer, and the recommended Measurement range is 5~ 15μm.
Features
1. Manufactured in strict accordance with ISO1524, GB/T 1724-2019 international and national standards.
2. Provide single-channe design, easy to operate.
3. Made of stainless steel scraper and Drawdown blade, durable.
4. The range is 0~ 25 μm, Graduation is 2.5 µm, suitable for sample measurement with fineness below 30 μm.
Principle
By placing the sample to be tested on a scraper with a precise depth groove and scraping it uniformly with a matching Drawdown blade, the fineness of particles such as pigments and impurities in the sample is determined by observing the position of particles appearing in the groove.
Applications
Used to determine the fineness of pigments and impurities in Paints, paint paste, inks and other products.
Standards
ISO1524、GB/T 1724-2019
Steps
1. Select the appropriate range Grindometer (when the fineness is below 30 μm, apply a scraper with a range of 50 μm; when the fineness is above 30 μm, apply a scraper with a range of 100 μm or 150 μm).
2. Drop the sample to be tested into the front end of the groove of the Grindometer.
3. Using the matching Drawdown blade, scrape the sample across the entire groove length at a uniform speed and appropriate pressure.
4. Immediately (usually within 5 seconds) observe the groove at an appropriate angle to determine where the particles appear evenly.
5. Read the scale value corresponding to this position, which is the fineness of the sample.
Notice
• According to the estimated sample fineness, select the appropriate range model for measurement.
• The scraping operation should be uniform and stable to ensure that the Drawdown blade fits closely with the plane of the scraper.
• The reading should be completed quickly after scraping the sample to avoid sample drying affecting the judgment.
• After use, the scraper and Drawdown blade should be cleaned in time to keep the instrument clean and drying.
• This product does not come with a calibrated certificate.
