It is designed according to the requirement of IEC60598.1-2003 Test A: counterweight 5N、10N、20N、30N、40N（can be freely combined） Test B: testing shelf+timer+weights（in test A） Test C: testing shelf+timer+weights（in test A） Test E: standard testing shelf（3 pieces of glass，Æ10mm）, weights（can be freely combined），2 testing sticks, polished and chromate-painted. (with a spanner for adjusting)
