hap

1

In Cambodia, 20^th century, a unit of mass, = 60 kilograms.

United Nations, 1966.

2

[Thai. หาบ] In Thailand, ? – 20^th century, a unit of mass = 50 chang. After the metric standardization of 1923 = 60 kilograms. Sometimes called the “Siamese picul,” or hal or taam. Also romanized as harb. The Weights and Measures Act B.E. 2542 (1999) provides for a 60-kg customary unit, described in English translations as a "standard picul," abbreviation p. It is however, a hap, and is so written and pronounced in Thai.

In the 19^th century = 133.75 pounds avoirdupois. The Standards Dept. of the English Board of Trade evaluated a gilt gun metal standard in 1876 and found it to be 133.731 pounds avoirdupois.

W. A. Browne, 1879. Pages 275-6.

3

[Thai. หาบหลวง] standard metric picul 擔.

In 1959 the government of China defined the "market catty" as an even 500 grams. Thinking of the hap as = 100 Chinese catties makes it = 50 kg. As in 2, above, the Thai is actually hap, not picul.