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D4119-22 – Standard Test Method Technical Guide
📐 Scope and Applicability of D4119-22
ASTM D4119‑22 defines the standard performance specification for knitted fabrics used in men’s and boys’ dress shirts. It applies to fabrics composed of any textile fiber or blend of fibers, establishing requirements for both the length and width directions of the fabric. Importantly, this specification expressly excludes knitted fabrics intended for interlinings.
The standard places the responsibility on the user to establish appropriate safety, health, and environmental practices and to determine the applicability of regulatory limitations. It was developed in accordance with internationally recognized principles on standardization set forth by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
⚙️ Key Test Methods and Performance Properties
The standard integrates a comprehensive suite of ASTM and AATCC test methods to evaluate fabric quality. Adherence to the current edition of each referenced method is mandatory (see Note 1 of the standard). The primary categories of evaluation include dimensional stability, colorfastness, physical strength, and appearance retention.
| 🟦 Property Category | 📏 Applicable Test Method | 🎯 Primary Evaluation Goal |
|---|---|---|
| Bursting Strength | ASTM D3786 / D3787 | Fabric resistance to rupture via diaphragm or ball burst |
| Dimensional Change (Laundering) | AATCC TM135 / TM96 | Shrinkage or growth after home or accelerated laundering |
| Colorfastness to Crocking | AATCC TM8 / TM116 | Resistance of dyed fabric to rubbing (wet and dry) |
| Colorfastness to Light | AATCC TM16.3 | Fading resistance under xenon-arc light exposure |
| Colorfastness to Perspiration | AATCC TM15 | Stability of color against simulated perspiration |
| Colorfastness to Laundering | AATCC TM61 | Color loss, staining, and bleach resistance (TM172, TM188) |
| Smoothness Appearance | AATCC TM124 | Fabric wrinkle recovery after repeated home launderings |
| Colorfastness to Burnt Gas Fumes | AATCC TM23 | Resistance to fading from atmospheric pollutant fumes |
💡 Technical Note: Dimensional change requirements rely heavily on AATCC TM135. Always match the test conditions to the intended care label (wash temperature, drying procedure) to ensure valid compliance results.
📚 Regulatory Framework and Referenced Standards
D4119-22 is deeply integrated with the broader textile industry testing ecosystem. It directly references ASTM D123 (Terminology Relating to Textiles) and the withdrawn D7022 (Apparel Terminology). Federal compliance includes the Flammable Fabrics Act Regulations (16 CFR 1610). Sampling procedures and tables for inspection by attributes must follow MIL-STD‑105D or an equivalent acceptable plan.
Specialty requirements such as bond strength of fused or laminated apparel fabrics (ASTM D2724) and stretch properties of low‑power knits (ASTM D2594) are invoked when applicable. Evaluation of color change and staining relies on the AATCC Gray Scales (EP1, EP2) and the 9‑Step Chromatic Transference Scale (EP8).
🚨 Critical Compliance Requirement: The specific numeric limits for passing grades (e.g., minimum bursting strength in psi, maximum shrinkage percentages, minimum colorfastness ratings) are provided exclusively in Table 1 of the full standard document. Laboratories and manufacturers must purchase and thoroughly review the official ASTM D4119‑22 standard to obtain these absolute pass/fail criteria.
❓ Frequently Asked Questions
🔍 What types of fabrics are governed by ASTM D4119‑22?
This specification applies to all knitted fabrics used in men’s and boys’ dress shirts, regardless of fiber type or blend. It explicitly excludes knitted fabrics used for interlinings.
💡 What are the primary performance characteristics evaluated?
The standard evaluates bursting strength, dimensional stability (shrinkage), colorfastness properties (light, crocking, perspiration, laundering, gas fumes), and appearance retention (smoothness after washing).
⚡ How does D4119‑22 address fabric safety?
While the performance specification provides the quality framework, it explicitly references 16 CFR 1610 (Flammable Fabrics Act Regulations) for mandatory federal compliance. The standard also reminds users of their responsibility to establish appropriate safety and regulatory practices.
📌 Which AATCC methods are most critical for colorfastness testing?
Wet and dry crocking (AATCC TM8/TM116), perspiration (TM15), light (TM16.3), and accelerated laundering (TM61) are fundamental. Bleach resistance methods (TM172 for non‑chlorine, TM188 for sodium hypochlorite) are also required specifications.