3nh YG60 60° Single-Angle Gloss Meter for Stone and Hardware

Overview

The 3nh YG60 is a precision-engineered 60° single-angle gloss meter designed specifically for quality control applications in stone fabrication, metal hardware finishing, coated surfaces, and architectural cladding industries. It operates on the principle of specular reflectance measurement—directing a collimated beam of visible light (CIE standard illuminant D65) at a fixed 60° incident angle onto the sample surface and quantifying the intensity of reflected light within the specular direction. This geometry is standardized for medium-gloss materials (typically 10–70 GU), making the YG60 particularly suitable for polished granite, marble, stainless steel panels, anodized aluminum, and high-gloss painted or lacquered components. The instrument conforms rigorously to ISO 2813:2014, ASTM D523-14, and China’s national standard GB/T 9754–2007, ensuring metrological traceability and inter-laboratory comparability. Its optical architecture features a stable LED light source with temperature-compensated output, a precision-aperture diaphragm, and a silicon photodiode detector calibrated against certified reference standards.

Key Features

• Automatic calibration verification: The YG60 performs real-time self-checks of its built-in ceramic gloss standard (100 GU) prior to each measurement sequence, flagging deviations beyond ±0.5 GU to ensure ongoing accuracy.
• High-capacity onboard memory: Stores up to 35,000 measurement records with timestamp, sample ID, operator code, and environmental metadata (optional ambient temperature/humidity input via external sensor).
• Configurable power management: Auto-shutdown delay adjustable from 30 to 120 seconds, minimizing battery drain during intermittent use in field or production-floor environments.
• Ergonomic industrial design: Curved housing with textured non-slip grip and optimized center-of-gravity distribution reduces operator fatigue during repetitive measurements across large-format stone slabs or hardware assemblies.
• Dual-parameter capability: Simultaneously measures gloss (60° geometry) along with haze (0–30%) and total transmittance (0–100%)—enabling concurrent evaluation of surface reflectivity and bulk optical clarity for translucent stone composites or coated glass-metal hybrids.
• Regulatory alignment: Fully compliant with JJG 696–2015 (Chinese metrological verification regulation for working gloss meters), supporting routine calibration validation and audit readiness under GLP and ISO/IEC 17025 frameworks.

Sample Compatibility & Compliance

The YG60 accommodates flat or gently curved surfaces with minimum dimensions of 25 mm × 25 mm and radius of curvature ≥150 mm. It is routinely deployed for QC inspection of natural stone tiles (granite, travertine, quartzite), engineered stone slabs (solid surface, sintered stone), brushed and mirror-finished metals (stainless steel, brass, aluminum alloys), powder-coated fixtures, and PVD-decorated hardware. All measurement protocols align with ISO 2813’s requirements for sample preparation—including cleaning procedures, surface temperature stabilization (23 ± 2°C), and avoidance of directional lighting interference. Data integrity meets FDA 21 CFR Part 11 criteria when used with the optional 3nh Quality Management Software, which enforces electronic signatures, audit trails, and role-based access control.

Software & Data Management

The included 3nh Quality Management Software (v3.2+) runs on Windows 10/11 and provides full bidirectional communication with the YG60 via USB-C or Bluetooth 5.0. It enables statistical process control (SPC) charting (X̄-R, Cpk), batch-level pass/fail thresholding per material grade, automated report generation (PDF/CSV/XLSX), and integration with enterprise LIMS or MES platforms via configurable API endpoints. Audit logs record every data export, parameter change, and firmware update with user ID and timestamp—fully satisfying GLP documentation requirements. Raw spectral data is not captured (as the YG60 is a tristimulus-integrated glossmeter, not a spectrophotometer), but all derived gloss, haze, and transmittance values are stored with full metrological context.

Applications

• Stone fabrication plants: Monitoring consistency of polishing cycles across batches of granite countertops or marble flooring.
• Architectural metal suppliers: Verifying specular uniformity of anodized curtain wall profiles before shipment.
• Automotive trim manufacturers: Controlling gloss match between injection-molded plastic housings and chrome-plated metal inserts.
• Quality assurance labs in construction material certification bodies: Performing third-party verification per EN 14511 or ASTM C97 for natural stone classification.
• R&D departments developing anti-fingerprint coatings: Quantifying gloss retention after abrasion or chemical exposure testing.

FAQ

Does the YG60 support multi-angle gloss measurement?
No—the YG60 is a dedicated 60° geometry instrument. For 20°/60°/85° comparative analysis, consider the 3nh YG268 or NS800 series.
Can the YG60 measure curved surfaces like faucets or door handles?
Yes, provided the local radius of curvature exceeds 150 mm and the measurement area is free of sharp edges or compound curves.
Is NIST-traceable calibration available for the YG60?
Yes—3nh offers factory calibration certificates traceable to NIM (National Institute of Metrology, China), with optional UKAS-accredited calibration via authorized partners.
What is the service life of the internal ceramic standard?
The integrated 100 GU standard is rated for 100,000+ verification cycles; annual recalibration against a primary standard is recommended for ISO/IEC 17025 compliance.
How does the YG60 handle ambient light interference during outdoor stone inspections?
Its optical design includes a recessed measurement port with spring-loaded shutter and ambient-light rejection algorithm, enabling reliable operation under diffuse daylight (≤10,000 lux) without requiring a dark enclosure.