1ug readability
weighing capacity 111g
missing internal part
What does calibration of a laboratory weight entail?
The best equipment: The LABOARTORY uses Mettler & Sartorius mass comparators. Mass comparators compare a weight to a known mass (a NIST calibrated reference weight) and report the difference, to a very small value. The best mass comparators can ascertain and measure differences to 10, 1, and even 0.1 micrograms (one ten-millionth of a gram); multiple weighings, averaged, can resolve the differences to even smaller amounts
The Laboratory’s mass comparators:
Mettler UMX-6 (7 decimal places of resolution to 6 grams)
Mettler AT106 (6 decimal places to 100 grams)
Mettler AX1005 (5 decimal places to 1011 grams)
The best reference weights: The weight under test must be compared to a known weight, so a set of calibrated reference weights, calibrated by an unimpeachable source, is essential. The Laboratory’s reference weights are OIML E-1 masses calibrated by NIST, with the smallest measurement uncertainties obtainable.
1ug readability
weighing capacity 111g
missing internal part
What does calibration of a laboratory weight entail?
The best equipment: The LABOARTORY uses Mettler & Sartorius mass comparators. Mass comparators compare a weight to a known mass (a NIST calibrated reference weight) and report the difference, to a very small value. The best mass comparators can ascertain and measure differences to 10, 1, and even 0.1 micrograms (one ten-millionth of a gram); multiple weighings, averaged, can resolve the differences to even smaller amounts
The Laboratory’s mass comparators:
Mettler UMX-6 (7 decimal places of resolution to 6 grams)
Mettler AT106 (6 decimal places to 100 grams)
Mettler AX1005 (5 decimal places to 1011 grams)
The best reference weights: The weight under test must be compared to a known weight, so a set of calibrated reference weights, calibrated by an unimpeachable source, is essential. The Laboratory’s reference weights are OIML E-1 masses calibrated by NIST, with the smallest measurement uncertainties obtainable.