Review on 📊 Optimized Calibration for American Weigh Scales 300WGT by Andrew Kay

Looks good. Comes in a thin small 1 mil thick ziplock plastic bag. Keep it in a pouch, but keep it in a protective container. This is your basic standard that needs to be protected from physical and corrosive damage. One reviewer measured its weight at 300.1g and found it acceptable. Actually its size is acceptable. To be clear, you buy it as a calibration standard. Now you must assume that this is correct. He used it to calibrate his balance to 300.0 and to check it again from time to time to make sure the balance was still correct. So keep it clean and safe. I wipe mine with a tissue so they don't leave sebum on them, but it's just nostalgia for the days of precision work. general laboratory use. That means it weighs less than 45mg of its advertised weight of 300g; good in my needs. I have to accept this statement, since a weight with official certification would cost me at least 10 times as much. With that weight, I found my little Boweiike scale to read 297.63g out of the box, which is better than 1% accuracy without calibration. . But the scale loses calibration over time or handling — or worse, if someone accidentally puts it into calibration mode without the right weight. So I will be using this weight regularly before I need maximum accuracy. By the way: I chose 300 g because that is the weight that my scale needs for automatic calibration.