Classes
There are two main classes of nerve agents. The members of the two classes share similar properties and are given both a common name (such as sarin) and a two-character NATO identifier (such as GB).
Read more about this topic: Nerve Agent
Famous quotes containing the word classes:
“The difference between people isn’t in their class, but in themselves. Only from the middle classes one gets ideas, and from the common people—life itself, warmth. You feel their hates and loves.”
—D.H. (David Herbert)
“When we of the so-called better classes are scared as men were never scared in history at material ugliness and hardship; when we put off marriage until our house can be artistic, and quake at the thought of having a child without a bank-account and doomed to manual labor, it is time for thinking men to protest against so unmanly and irreligious a state of opinion.”
—William James (1842–1910)
“The want of education and moral training is the only real barrier that exists between the different classes of men. Nature, reason, and Christianity recognize no other. Pride may say Nay; but Pride was always a liar, and a great hater of the truth.”
—Susanna Moodie (1803–1885)