Weights and Measures For Herbal Use

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Weights and Measures

For Herbal Use

 

 

 

Metric

Approximate Apothecary Equivalents

Metric Approximate Apothecary Equivalents

Metric

Approximate Apothecary Equivalents

 

30 Gm.

1 ounce

0.2 Gm.

3 grains

4 mg.

1/16 grain

 

15 Gm.

4 drams

0.15 Gm.

21/2 grains

3 mg.

1/20 grain

 

10 Gm.

21/2 drams

0.12 Gm.

2 grains

2 mg.

1/30 grain

 

7.5 Gm.

2 drams

0.1 Gm.

11/2 grains

1.5 mg.

1/40 grain

 

6 Gm.

90 grains

75 mg.

11/4 grains

1.2 mg.

1/50 grain

 

5 Gm.

75 grains

60 mg.

1 grain

1 mg.

1/60 grain

 

4 Gm.

60 grains (1 dram)

50 mg.

3/4 grain

0.8 mg.

1/80 grain

 

3 Gm.

45 grains

40 mg.

2/3 grain

0.6 mg.

1/100 grain

 

2 Gm.

30 grains

30 mg.

1/2 grain

0.5 mg.

1/120 grain

 

1.5 Gm.

22 grains

25 mg.

3/8 grain

0.4 mg.

1/150 grain

 

1 Gm.

15 grains

20 mg.

1/3 grain

0.3 mg.

1/200 grain

 

0.75 Gm.

12 grains

15 mg.

1/4 1/4 grain

0.25 mg.

1/250 grain

 

0.6 Gm.

10 grains

12 mg.

1/5 grain

0.2 mg.

1/300 grain

 

0.5 Gm.

71/2 grains

10 mg.

1/6 grain

0.15 mg.

1/400 grain

 

0.4 Gm.

6 grains

8 mg.

1/8 grain

0.12 mg.

1/500 grain

 

0.3 Gm.

5 grains

6 mg.

1/10 grain

0.1 mg.

1/600 grain

 

0.25 Gm.

4 grains

5 mg.

1/12 grain

 

 

 

 

 

 

(A milliliter (ml.) is the approximate equivalent of a cubic centimeter

(cc).)

 

 

 

Apothecaries

 

1 dram = 60 grains or 1/8 of an ounce

 

16 ounces=1 pound

 

32 grams=1/1000 gram

 

 

 

Solid Weight-Liquid Weight

1 gram is equal to 1 cc of water at sea level at 4 percent

 

 

 

 

 

 

15 grains = 1 gram or 1000 milligrams

 

1 grain = 60 milligrams

 

 

 

 

 

Weights and Measures Liquids

 

 

A drop is often referred to as a minim, but many factors can alter the

size of the droop making it unwise to administer powerful medicines using

this measurement scale. A drop of water (pro-vided the dropper is standard)

is equal to 1 cubic centimeter or 1 milliliter, or 60 drops to the fluid

drachm. Note differences in other liquids:

 

Alcohol = 146 drops/fluid drachm

 

Chloroform = 250 drops/fluid drachm

 

Oils = 105 to 140 drops/fluid drachm

 

Syrups = 45 to 110 drops/ fluid drachm

Tinctures and Fluid Extracts = 130 to 150 drops/fluid drachm

 

 

 

Metric Approximate Apothecary Equivalents

Metric Approximate Apothecary Equivalents

Metric

Approximate Apothecary Equivalents

 

1000 ml.

1 quart

10 ml.

21/2 fluid drams

0.5 ml.

8 Minims

 

750 ml

1 1/2 pints

8 ml.

2 fluid drams

0.3 ml.

5 Minims

 

500 ml.

1 pint

5 ml.

13/4 fluid drams

0.25 ml.

4 Minims

 

250 ml.

8 fluid ounces

4 ml.

1 fluid dram

0.2 ml.

3 Minims

 

200 ml.

7 fluid ounces

3 ml.

45 minims

0.1 ml.

1 1/2 Minims

 

100 ml.

3 1/2 fluid ounces

2 ml.

30 minims

0.06 ml.

1 Minim

 

50 ml.

1 3/4 fluid ounce

1 ml.

15 minims

0.05 ml.

3/4 3/4 Minim

 

30 ml.

1 fluid ounce

0.25 ml.

12 minims

0.03 ml.

1/2 1/2 Minim

 

15 ml.

4 fluid drams

1.6 ml.

10 minims

 

 

 

 

 

Minims Liquids

 

 

1 = 1 Drop

 

2 = 2 Drops

 

5 = 5 Drops

 

10 = 10 Drops

 

15 = 15 Drops = 1 cc = 1 ml

 

60 = Teaspoonful = 4 cc = 4 ml

 

120 = 2 teaspoonfuls = 8 cc = 8 ml = 1 fluid drachm

 

240 = 1 Tablespoonful = 15 cc = 15 ml = 2 fluid drachm

 

4 fluid drachm = 1/2 fluid ounce

 

8 fluid drachm = 1 fluid ounce

 

16 fluid drachm = 2 fluid ounces

 

 

 

 

 

1 (one) wineglassful = 2 fluid ounces

 

2 (two) wineglassfuls = 4 fluid ounces = 1 (one) teacupful = 1/4 glass

 

1/2 glass = 8 fluid ounces

 

1 glassful = 16 fluid ounces = 1 pint

 

 

 

 

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