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Humboldt Penetration Needles for Penetrometer

- Material: Standard hardened stainless-steel needle
- Exposed needle length: 1.6 to 1.8 in. (40 to 45mm)
- Weight: 0.09 oz. (2.5g)
- Application: Bituminous materials
Specifications
Type
Penetration Needle
Weight (Metric)
2.5 g
Certifications/Compliance
ASTM
Material
Standard hardened stainless-steel
Weight (English)
0.09 oz.
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