The Universal Penetrometer Wax Penetration Needle, ASTM D1321, Certified is 2.5g with a truncated cone-shaped tip with approximately 4mm maximum diameter tapered to 0.15mm diameter end. Comes with NIST certification.
The Universal Penetrometer Wax Penetration Needle, ASTM D1321, Certified is 2.5g with a truncated cone-shaped tip with approximately 4mm maximum diameter tapered to 0.15mm diameter end. Comes with NIST certification.