HunterLab ColorQuest XE Haze Meter

Overview

The HunterLab ColorQuest XE Haze Meter is a benchtop spectrophotometer engineered for precise, repeatable measurement of haze, transmittance, reflectance, color, and related optical properties in transparent, translucent, and opaque solid and liquid samples. It operates on the principle of dual-beam spectral photometry with a d/8° (diffuse illumination / 8° viewing) geometry compliant with ASTM D1003, ISO 14782, and CIE No. 15. This configuration ensures high angular integration for robust haze quantification—defined as the percentage of transmitted light scattered more than 2.5° from the incident beam direction—and enables simultaneous evaluation of colorimetric parameters (CIE L*a*b*, YI, whiteness, yellowness, etc.) under standardized illuminants (D65, A, C, F2, etc.). The instrument’s core architecture centers on a high-stability 15.2 cm (6″) integrating sphere coated with Spectraflect®, a barium sulfate–based diffuse reflectance material certified for long-term spectral uniformity and resistance to yellowing under repeated xenon flash exposure.

Key Features

• Dual-beam optical path design minimizes drift and enhances photometric stability across extended measurement sessions.
• Pulsed xenon lamp provides full-spectrum output (400–700 nm) with D65 spectral match; rated for >1 million flashes with no routine replacement required.
• 256-element diode array detector coupled with a high-resolution concave holographic grating delivers <3 nm wavelength resolution and ±0.1 nm wavelength accuracy.
• Triple-opening transmission chamber accommodates rigid sheets, flexible films, bottles, and cuvettes—enabling rapid, operator-friendly sample loading without repositioning.
• Automatic specular component (SCI/SCE) switching supports both total reflectance (including surface gloss) and diffuse-only measurements per ISO 7724-1 and ASTM E308.
• LAV/SAV/MAV aperture options are motorized and software-controlled, allowing seamless switching between large-area (25.4 mm × 19.0 mm), small-area (9.5 mm × 6.3 mm), and micro-area (4 mm) measurement geometries.
• Status LED indicators provide real-time visual feedback on active mode (transmission/reflection), aperture selection, and SCI/SCE state.

Sample Compatibility & Compliance

The ColorQuest XE accepts flat, curved, rigid, or flexible specimens—including plastic films, glass panels, polymer sheets, pharmaceutical vials, cosmetic emulsions, and food-grade liquids. Its d/8° geometry meets regulatory requirements for haze testing in FDA-regulated packaging (21 CFR Part 11-ready software optional), ISO 13468-2 for plastics, and ASTM D1003 for transparent materials. The system supports GLP/GMP workflows through audit-trail-enabled software (via optional EasyMatch QC Enterprise), ensuring traceability of instrument calibration, user actions, and measurement history. All optical components comply with RoHS directives and carry NIST-traceable factory calibration certificates.

Software & Data Management

Controlled via HunterLab’s EasyMatch QC software (Windows-based), the ColorQuest XE supports automated pass/fail evaluation against user-defined tolerances, statistical process control (SPC) charting, batch reporting, and export to CSV, PDF, or XML formats. The software includes built-in compliance modules for FDA 21 CFR Part 11 (electronic signatures, audit trails, role-based access), ISO/IEC 17025 documentation templates, and customizable report headers with company logos and QA stamps. Raw spectral data (31-point or 10-nm intervals) is stored with metadata including date/time, operator ID, sample ID, aperture, geometry, and calibration status.

Applications

Primary use cases include haze and clarity validation in PET, PP, and PE film production lines; quality control of optical lenses and display cover glasses; color consistency monitoring in automotive interior polymers; transparency assessment of medical device packaging; and formulation development for clear coatings and personal care gels. In R&D environments, the instrument supports comparative studies of anti-fog additives, UV stabilizers, and nanofiller dispersion efficiency in transparent composites. Its ability to decouple specular and diffuse contributions makes it suitable for evaluating surface texture effects on perceived clarity independent of bulk scattering.

FAQ

What standards does the ColorQuest XE comply with for haze measurement?
ASTM D1003, ISO 14782, ISO 13468-2, and CIE Publication No. 15.
Is the xenon lamp user-replaceable?
No—the pulsed xenon source is sealed and field-replaceable only by authorized HunterLab service personnel after >1 million flashes.
Can the instrument measure both transmission and reflectance on the same sample?
Yes—dual optical paths and interchangeable sample holders enable rapid switching between transmission (triple-opening chamber) and reflectance (standard port) modes without recalibration.
Does the system support networked deployment in a manufacturing environment?
Yes—Ethernet connectivity, OPC-UA compatibility, and PLC interface options allow integration into MES and SCADA systems for centralized data acquisition and real-time SPC dashboards.
How is calibration verified and maintained?
Instrument performance is validated using NIST-traceable white tile (LAV), transmission standard (CR-400), and haze reference standards (e.g., PMMA blocks certified per ASTM D1003 Annex A2); annual verification services are available through HunterLab-certified labs.