The Penetrometer 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.
|Timing selection||5, 8, 10, 12, 30 or 60 s|
|Timing error||less than ±0.1 s|
|Penetration accuracy||±0.1 penetration|
|Maximum penetration||600 penetrations|
|Standard needle||2.5±0.05 g|
|Constant temperature bath||made of harden glass|
|Mold||25×32×3mm, a brass cylinder|
|Heating power||220 W|