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Measurement |
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When one
discusses scales, they usually refer to weight scales, which
measure pounds and kilograms. This chart summarizes nine
other various scales of measurement. |
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Simpson Hurricane Scale |
Tornado Scale |
Earthquake Scale |
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0 - 73 MPH |
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0 - 39 MPH |
0 |
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Category 1 |
>74 MPH |
F0 |
40 - 72 MPH |
1 |
No damage |
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Category 2 |
>96 MPH |
F1 |
73 - 112 MPH |
2 |
No damage |
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Category 3 |
>111 MPH |
F2 |
113 - 157 MPH |
3 |
Little damage |
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Category 4 |
>131 MPH |
F3 |
158 - 206 MPH |
4 |
Light damage |
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Category 5 |
>155 MPH |
F4 |
207 - 260 MPH |
5 |
Moderate damage |
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F5 |
261 - 318 MPH |
6 |
Mod.-Heavy damage |
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F6 |
319 - 379 MPH |
7 |
Heavy Damage |
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8 |
Very Heavy Damage |
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9 |
Total destruction |
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10 |
Unheard - never seen |
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IQ Scale |
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130+ |
Very Superior |
1f |
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0 |
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120 - 129 |
Superior |
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1 |
Talc |
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110 - 119 |
High Average |
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2 |
Gypsum (fingernail) |
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100 - 109 |
Average |
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3 |
Calcite (penny) |
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90 - 99 |
Average |
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4 |
Fluorite |
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80 - 89 |
Low Average |
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5 |
Apatite (steel) |
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70 - 79 |
Borderline |
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6 |
Feldspar (glass) |
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<70 |
Very Low |
2f |
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7 |
Quartz |
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8 |
Topaz (160) |
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9 |
Corundum (250) |
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10 |
Diamond (1000) |
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0 |
0 (acidic) |
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1 |
1 |
1 |
water |
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2 |
2 |
2 |
brick, concrete |
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3 |
3 |
3 |
aluminum |
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4 |
4 |
4 |
barium |
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5 |
5 |
5 |
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6 |
6 |
6 |
arsenic |
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7 |
7 (neutral) |
7 |
Iron, tin, zinc |
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8 |
8 |
8 |
brass, bronze |
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9 |
9 |
9 |
copper, nickle |
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10 |
10 |
10 |
silver |
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11 |
11 |
11 |
lead |
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12 |
12 |
12 |
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13 |
13 |
13 |
mercury |
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14 |
14 (basic) |
14 |
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15 |
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16 |
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17 |
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18 |
uranium |
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19 |
gold |
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20 |
tungsten |
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21 |
platinum |
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22 |
iridium |
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Although the author has tried to be
as accurate as possible, errors are possible. |
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Vaughn's Summaries (One-Pagers) ©2005 Vaughn Aubuchon ... All Rights Reserved http://www.vaughns-1-pagers.com This Vaughns Measurement Scales Chart web page was updated on 2006-10-24. |