The Bitumen Penetration Test Penetrometer is a high-precision laboratory instrument designed to measure the penetration value of asphalt and bitumen. Equipped with the Asphalt Standard Needle, the device accurately determines the consistency and hardness of bituminous materials under standard conditions, providing reliable results for quality control, road engineering, and laboratory testing.

Asphalt Standard Needle

Model:TD604-2A

I. Product Introduction

The asphalt penetration standard needle is a precision instrument designed and manufactured according to the relevant requirements of T0604 in the "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering (JTG 3410-2025)". It is also manufactured in accordance with international standards such as EN 1426, ASTM D5, and AASHTO T49, meeting the testing needs of export and international project laboratories. It is an indispensable core tool in the testing of asphalt physical properties and is widely used in laboratories to accurately determine the asphalt penetration index.

II. Technical Parameters

The standard needle is manufactured using high-precision processes to ensure the accuracy and repeatability of test data. Its main technical parameters are as follows:

Total needle weight: 2.5 ± 0.05 (g)

Needle handle length: 38 ± 1 (mm)

Total needle body length: 60 + 1 (mm)

Exposed needle body length: 50~55 (mm)

Needle body diameter: 1.00~1.02 (mm)

Needle tip diameter: 0.14~0.16 (mm)

Needle tip angle: 8°40’~9°40’

Appearance: No burrs, no rust

III. Application Scope

The asphalt penetration standard needle is mainly used for:

1. Laboratory asphalt testing: Accurately determining the penetration of asphalt under controlled conditions.

2. Quality control: Ensuring that asphalt used in road construction meets standard requirements.

3. Scientific research and development: Supporting asphalt performance research and laboratory testing projects.

4. International engineering projects: Compliant with both domestic and international standards (EN, ASTM, AASHTO), suitable for export and use in laboratories worldwide.

IV. Reasons for Choosing the TQXZ Standard Needle

Hebei Tianqixingzi Testing Equipment Co., Ltd. specializes in the research and development and production of laboratory and field asphalt testing instruments. This product combines high precision, durability, and international standards, providing a reliable tool for laboratories, engineering projects, and quality control.

By choosing this standard needle, customers will receive:

Accurate and repeatable penetration test data

Laboratory equipment conforming to international standards

Durability and long-term reliable use

High-quality product from a professional manufacturer