Digital Laboratory Balances with Density Measurement Kit

Introduction to Digital Laboratory Balance (Equipped with Density Kit)

In polymer and chemical quality control laboratories, measuring weight alone is often insufficient. Determining the Density (Specific Gravity) of raw materials and finished products is one of the primary methods for verifying material authenticity and quality. The Digital Laboratory Balance offered by Polymer Test is a dual-purpose instrument that, in addition to precise weighing, provides the capability to measure the density of solids and liquids.

Technical Features and Measurement Precision

This series of balances is engineered for sensitive laboratory environments where accuracy is paramount:

• High Precision: Available in models with readability of 0.001g (1 mg) and 0.0001g (0.1 mg) for weighing ultra-light materials.
• Density Kit: Equipped with essential accessories including a suspension basket and a specialized beaker for measuring density using the Archimedes Method (Buoyancy). This feature is essential for compliance with standard ISO 1183 (Methods for determining the density of non-cellular plastics).
• Analytical Enclosure: Features a glass Draft Shield to prevent air currents from affecting weighing stability.

Calibration and Connectivity

• Dual Calibration System: Capable of calibration via two methods: Internal (Automatic) and External using standard weights, ensuring operational accuracy at any moment.
• RS232C Port: Allows connection to a computer or printer for documenting test results and data logging.

Connection to Other Polymer Tests

Precise density determination is a prerequisite for many other tests. For example, when working with a Melt Flow Index (MFI) tester, knowing the exact melt density is necessary to calculate the Melt Volume-flow Rate (MVR).

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