USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 3/TASK 1
(1) Metric Standards.
The principal unit of weight in the Metric
system is the gram (gm). Multiples of grams are obtained by prefixing the
Greek words deka (10), hekto (100), and kilo (1000). Divisions are obtained
by prefixing the Latin words deci (1/10), centi (1/100), and milli (1/1000).
The gram is the weight of 1 cubic centimeter of pure distilled water at a
temperature of 39.2 F; the metric ton is the weight of 1 cubic meter of
pure distilled water at a temperature of 39.2 F.
(2) English Standards.
The basic unit of weight in the English
system is the grain (gr.). We are more familiar with the ounce (oz.), which
is equal to 437.5 grains.
Refer to figure 159 below for the conversion
chart of Metric and English weight measures.
FIGURE 159. CONVERSION CHART - METRIC
AND ENGLISH WEIGHT MEASURES.