Related Experiment Video
Updated: Aug 5, 2026

09:36
Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Weight Measurement
Andrew Hurdle1, Michael Guzy2, Sean Gallagher3
1Ansell.
Current Protocols
|July 22, 2026
Summary
This guide explains how to select and use laboratory balances for accurate mass measurement. It covers electronic and mechanical types, detailing their features, applications, and maintenance for scientific and industrial needs.
Area of Science:
- Laboratory Science
- Analytical Chemistry
Background:
- Laboratory balances are essential tools for precise mass measurement.
- Two primary types exist: mechanical and electronic, with electronic balances offering advanced data handling capabilities.
Purpose of the Study:
- To provide comprehensive guidance on selecting and properly using laboratory balances.
- To detail the characteristics, applications, and maintenance of various balance types.
Main Methods:
- Discusses the selection criteria for laboratory balances, including capacity, precision, accuracy, repeatability, and robustness.
- Outlines the proper usage and maintenance procedures for both mechanical and electronic balances.
- Includes basic protocols for measuring mass with top-loading and analytical balances.
Main Results:
- Electronic balances offer computer interfaces for data management and perform various computations beyond simple weighing.
- Understanding balance characteristics is crucial for suitability in specific scientific or industrial applications.
- Laboratory balances are generally user-friendly and require minimal maintenance.
Conclusions:
- Proper selection and use of laboratory balances are critical for reliable scientific and industrial measurements.
- This unit equips users with the knowledge to choose and operate balances effectively.
- Basic protocols are provided for practical application of balance usage.
Related Concept Videos
Uncertainty in Measurement: Reading Instruments
Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
Measurement: Standard Units
Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
Measurement: Derived Units
The International System of Units or SI system, by international agreement, has fixed measurement units for seven fundamental properties: length, mass, time, temperature, electric current, amount of substance, and luminosity. These are called the SI base units.
Units of Measurement
Mechanical engineering is one of the oldest branches of engineering. It deals with designing, analyzing, and manufacturing machines and mechanical systems. To ensure precise and accurate calculations, units of measurement are used. They provide a standard system for expressing and comparing physical quantities.
There are various well-known historical measurement systems, such as the Babylonian system, the Roman system, the Egyptian system, the Olympian system, the British system, and the Indus...
There are various well-known historical measurement systems, such as the Babylonian system, the Roman system, the Egyptian system, the Olympian system, the British system, and the Indus...
Units and Standards of Measurement
A physical quantity is defined either by specifying its measurement method or by stating how it is calculated from other measurements. For example, consider a metallic cube. We might define its mass and dimensions by specifying methods for measuring them, such as using a weighing machine and a meter scale. Then, we could define the volume by stating that it is the cube of its side, and we could calculate the density as the mass divided by the volume.
Measurements of physical quantities are...
Measurements of physical quantities are...
Units and Standards of Measurement
A physical quantity is defined either by specifying its measurement method or by stating how it is calculated from other measurements. For example, consider a metallic cube. We might define its mass and dimensions by specifying methods for measuring them, such as using a weighing machine and a meter scale. Then, we could define the volume by stating that it is the cube of its side, and we could calculate the density as the mass divided by the volume.
Measurements of physical quantities are...
Measurements of physical quantities are...

