PTA GUIDE
Measures

Mostly you can find converters online, but some Dutch measurements:

100 gram  1 Dutch ounce (1 ons)
5 Dutch ounces  1 Dutch pound (1 pond)
10 Dutch ounces  1 kilogram (1 kilo)

 

American / British weights Dutch weights
Half ounce 15 grams
1 ounce 30 grams
1 ¾ ounce                 50 grams
4 ounces or ¼ pound 115 grams
8 ounces or ½ pound 230 grams
16 ounces or 1 pound 460 grams