Paper quantitative tester
This article provides an overview of paper basis weight testers, essential tools for measuring the mass per unit area (g/m²) of paper, cardboard, and textiles. These instruments ensure material consistency, compliance with quality standards, and efficient production control.
Applicable Standards
The tester adheres to global standards:
ISO: ISO 536 (Paper/board), ISO 22862 (Online Measurement)
TAPPI: T 410 om-21 (Grammage), T 524 om-21 (Online Systems)
GB/T: GB/T 451.2 (Paper/board)
Main Parameters
| Parameter | Specification |
|---|---|
| Measurement Range | 20-500 g/m² (Adjustable) |
| Accuracy | ±0.5% (Full Scale) |
| Test Area | 100 cm² (Standard), Customizable |
| Resolution | 0.1 g/m² |
| Measurement Time | <5 seconds |
Working Principle
The tester employs infrared absorption or beta radiation to measure material thickness and density. For lab use, a sample is cut and weighed; online systems scan moving sheets. Both methods compute basis weight using the formula:
Basis Weight = Mass / Area
Test Principle
Lab Testers: Cut a 100 cm² sample, weigh it, and divide by area.
Online Systems: Use sensors to measure thickness/density across the sheet width, integrating data to calculate average basis weight.
Applications
Ideal for paper mills, converters, and QA labs, the tester supports raw material inspection, process optimization, and final product verification. Its compliance with international standards ensures reliable results for both offline and inline applications.
This guide equips users with technical insights to select and utilize basis weight testers, ensuring precise material analysis and quality control.