ASTM D580/D580M-24
Standard Practice for Greige Woven Glass Tapes and Webbings
- Standard No.
- ASTM D580/D580M-24
- Release Date
- 2024
- Published By
- American Society for Testing and Materials (ASTM) US / ASTM
- Latest
- ASTM D580/D580M-24
- Introduction
Interpretation of the core content of the standard
Technical parameters Type A (medium density) Type B (high density) Warp density (roots/25mm) 24-144 21-108 Weft density (roots/25mm) 33-34 38-42 Minimum breaking strength (N) 445-2513 200-1957
Material Property Specifications
The standard clearly requires that glass fiber tape must be made of 'E' grade electrical glass fiber yarn without free alkali metal salts. Organic materials can be added during the manufacturing process to improve weaving performance, but the content must be controlled within <4.0% (pass D4963/D4963M test).
Key Test Methods
- D3775: Determination of fabric density (1 measurement across the entire warp direction, 3 measurements in the weft direction)
- D5035: Breaking strength test (CRE tensile testing machine is preferred)
- D1777: Thickness measurement (6.35mm presser foot, 5.5N pressure)
Key Quality Control Points
The standard adopts the ANSI/ASQC Z1.4 sampling plan. The permitted defects include: - Major defects AQL=0.65/100 units - Total defects AQL=2.5/100 units For the determination of typical defects, please refer to Table 7 of the standard. For example, holes and broken yarns ≥50mm are considered major defects.
Standard Evolution Analysis
Main updates in this version (2024):
1. Added width tolerance grading for glass fiber tape (＜25.4mm±0.8mm, ≥25.4mm±1.6mm)
2. Clarified that test data from CRE and CRT tensile testing machines are not comparable
3. Updated D7018/D7018M terminology reference versions
Implementation Recommendations
- The type code of glass fiber tape should be clearly marked during procurement (e.g., ECC-B for electrical grade/continuous warp/dense weave)
- It is recommended to conduct random inspections of organic content for each batch to prevent contamination in post-processing steps
- For critical application scenarios, suppliers may be required to provide control charts
ASTM D580/D580M-24 Referenced Document
- ASTM D1 Standard Specifications for Purity of Raw Linseed Oil from North American Seed*， 2026-02-08 Update
- ASTM D1059 Standard Test Method for Yarn Number Based on Short-Length Specimens
- ASTM D123 Standard Terminology Relating to Textiles
- ASTM D1777 Standard Test Method for Thickness of Textile Materials
- ASTM D3 Rock toughness test method*， 2026-02-08 Update
- ASTM D3774 Standard Test Method for Width of Textile Fabric
- ASTM D3775 Standard Test Method for Fabric Count of Woven Fabric
- ASTM D4 Standard Test Method for Bitumen Content*， 2024-07-01 Update
- ASTM D5035 Standard Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method)
- ASTM D578/D578M Standard Specification for Glass Fiber Strands
- ASTM D579/D579M Standard Practice for Greige Woven Glass Fabrics (Standard + Redline PDF Bundle)
ASTM D580/D580M-24 history
- 2024 ASTM D580/D580M-24 Standard Practice for Greige Woven Glass Tapes and Webbings
- 2015 ASTM D580/D580M-15 Standard Specification for Greige Woven Glass Tapes and Webbings
- 2010 ASTM D580/D580M-10 Standard Specification for Greige Woven Glass Tapes and Webbings
- 2004 ASTM D580-04 Standard Specification for Greige Woven Glass Tapes and Webbings
- 1999 ASTM D580-99 Standard Specification for Greige Woven Glass Tapes and Webbings
