The instrument is designed and made as per the requirements about penetrometer and its accessories stipulated in the National Standard GB/T 4985 “Test Methods for Needle Penetration of Wax”.
1.The needle penetration of wax is expressed as the depth that a standard needle of 100 g vertically penetrates into a wax sample without any measurable friction in 5 s at 25 ℃.
2. The test temperature for wax penetration is 25 ℃ in general.
3. Each wax penetration is 0.1 mm. It is directly shown on display.