Weights Type and Purpose
- Weights can be traced back to the earliest civilizations in Egypt, Mesopotamia and India.
- The first known weights were seeds, grains and stones.
- The earliest alloy weights were bronze. Later weights were made from brass, iron, copper
and aluminum. Earthenware and glass have also been used to produce weights.
- Weights come in many shapes. Most of the traditional forms fall into three major
categories of geometric, figurative and symbolic.
There are many different types of weights used for different purposes. The following
are only a few examples of the most common:
TRADE WEIGHTS
Used for the general weighing of goods, except for gems,
drugs and precious metals
COIN WEIGHTS
Used to check the weight of an individual coin to ensure the coin has not been altered and therefore retains its full value
POSTAL WEIGHTS
Used to check the weight of letters and parcels to determine postage due
APOTHECARY WEIGHTS
Used primarily by chemists and pharmacists to weigh the ingredients of drugs and medicine
TROY WEIGHTS
Used for weighing precious metals, while diamonds are weighed using carat weights |