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Siam Casting Powders Ltd.
SIAM CASTING POWDERS LTD.
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SCP - TECHNICAL DATA
Comparative Weights a nd Measures
TROY WEIGHT
Used in weighing the precious metals. | ||
|---|---|---|
24 grains | 1 pennyweight | |
20 pennyweights (dwt) | 1 ounce troy | |
12 ounces | 1 pound troy | |
5760 grains | 1 pound troy | |
The troy is about 10% heavier than the Commonly used avoirdupois ounce. Avoirdupois ounces x 0.9115 = troy ounces. | ||
AVOIRDUPOIS WEIGHT
Used in weighing the base metals. | ||
|---|---|---|
1 dram (or drahms) | 1 pennyweight | |
16 drams | 1 ounce avoir | |
16 ounces | 1 pound | |
16 ounces | 700 grains | |
the avoirdupois pound is about 21 ½% heavier than the troy pound. Troy ounces x 1.0971 = avoirdupois ounces. | ||
GRAM WEIGHT
1 gram | = 15.432 grains troy |
1.555 grams | = 1 pennyweight dwt. |
31.104 grams | = 1 ounce troy |
28.35 grams | = 1 ounce avoirdupois |
CARAT WEIGHT
Used in weighting precious stones and semi-precious gemstones.
1 carat | = 3.086 grains troy |
1 carat | = 0.007 ounce avoirdupois |
1 carat | = 0.20 grams |
1 carat | = 5 carats |
Used in weighting precious stones and semi-precious gemstones.
1 carat | = 3.086 grains troy |
1 carat | = 0.007 ounce avoirdupois |
1 carat | = 0.20 grams |
1 carat | = 5 carats |
FLUID MEASUREMENT
1 dram = ½ ounces (fluid) = 1.85 cubic centimetres. |
= 0.007 ounce avoirdupois |
1 quart = 32 ounces (fluid) = 2 pints = ¼ gallon = 57 cubic inches. |
1 gallon = 4 quarts = 128 ounces (fluid) = 3.78 litres. |
1 litre = 1000cc (slightly more than 1 quart U.S. ) = 0.264 U.S. gallons. |
1 litre = 1000cc (slightly more than 1 quart U.S. ) = 0.264 U.S. gallons. |
TEMPERATURE
To convert : |
Fahrenheit to Centigrade (Celsius) = Subtract 32 from degrees Fahrenheit, multiply remainder by
5, divide the product by 9. |
Centigrade to Fahrenheit = Multiply degrees Centigrade by 9, divide product by 5, and add 32. |
UsedThe photographs, descriptions and information provided in this catalogue are given in good faith.
We reserve the right to make changes in design and specifications without notice.