Aatcc Gray Scale For Color Change - China

Applicable Standards

The AATCC Gray Scale aligns with international colorfastness evaluation protocols, including: AATCC Evaluation Procedure 1 (Grey Scale for Stain and Color Change)

ISO 105-A02 (Grey Scale for Assessing Change in Color)

JIS L 0801 (Japanese Industrial Standard for Gray Scale Assessment)

GB/T 250 (China’s National Standard for Gray Scale for Color Change)

These standards harmonize grading criteria, enabling cross-border trade and regulatory compliance.

Working Principle

The Gray Scale functions as a visual benchmarking tool: Sample Preparation: Test specimens (e.g., dyed fabrics) are exposed to controlled conditions (e.g., xenon arc light, laundering cycles).

Comparison: The faded specimen is placed adjacent to the Gray Scale chips under standardized lighting (e.g., D65 illuminant, 6500K).

Rating: Users assign a grade based on the closest match:

1 = severe color change (e.g., visible fading or staining)

5 = no perceptible difference

Half-steps (e.g., 4-5) allow nuanced evaluation for borderline cases.

Test Principle & Applications

The Gray Scale is used in controlled laboratory environments to: Lightfastness Testing: Assess dye durability after accelerated aging (e.g., AATCC 16E, ISO 105-B02).

Wash Fastness: Evaluate color retention and cross-staining after laundering (AATCC 61, ISO 105-C06).

Perspiration/Rub Fastness: Measure color stability under simulated wear (AATCC 8, 15).

Key Applications: Textile & Apparel: Quality control for fashion brands and dyehouses.

Automotive/Upholstery: Ensuring color consistency in vehicle interiors.

Home Furnishings: Verifying fade resistance in carpets, curtains, and bedding.

The AATCC Gray Scale for Color Change is a cornerstone of colorfastness testing, offering a reliable, standardized, and user-friendly solution for industries demanding precision in product performance and durability.

Main Parameters

Parameter Specification

Scale Type 5-step numerical rating (1–5) with half-step increments (e.g., 4-5)

Dimensions 140 × 50 mm (standard card size)

Material Laminated paper with fade-resistant inks, sealed in protective sleeves

Color Pairs 5 pairs of gray chips (original vs.

faded) for visual comparison

Lightfastness Inks meet ISO 105-B02 standards for resistance to light exposure

Precision Tolerance ≤ ±0.5 grade for repeatable grading

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Company Contact:

• Posted By: Standard International Group (HK) Limited

• Phone: 18326093791

• Address: 280 Jiugan Road, Songjiang district, Shanghai , Shanghai , China

• Email:

• Website: https://standards-groups.com/

• Business Description: Standard Groups is an integrated supplier specialized in providing material test instruments and “The Whole Laboratory Program” solutions.
  
  The main products cover many areas: Textile and Apparel, Leather and Footwear, Flammability Testing, Filter Material Testing, Automotive Interior, Toy Testing, Non-woven and Geo-membrane, Carpet Testing, Luggage/Furniture/Office Furniture Testing, Material and Parts of Automotive, Weathering and Light Stability Testing, Ovens and Environmental Testing Chambers, Salt Fog Chambers, Materials Testing Machines, 3D Body Scanning and Manikin, Air Quality Monitoring and Measurement, Package Material Testing, Electrical Safety Testing, Optical and Spectroscopy Instruments, Lighting and Color Assessment, Microscopy and Legal Inspection, and relative testing services.