trade test1
/ˈtreɪd tɛst/noun
1A test (of a product, a material, etc.) used in a particular trade or occupation. Now rare.
2A test of a person's proficiency in a particular trade or occupation.
Origin
Mid 19th century; earliest use found in Freeman's Journal. From trade + test.
trade-test2
/ˈtreɪd tɛst/verb
1 [with object] To subject (especially a person) to a trade test.
2 [no object] To carry out a trade test. rare.
Origin
Early 20th century; earliest use found in The Manchester Guardian. From trade test.