Concept:
International standards are essential for ensuring quality, safety, and consistency across industries. ASTM International is one of the most prominent organizations that develops and publishes voluntary consensus technical standards.
Step 1: Identify the full form and function.
ASTM stands for the American Society for Testing Materials (now known simply as ASTM International). Founded in 1898, it provides a library of over 12,000 standards used globally. In the textile sector, ASTM standards define the procedures for testing physical properties such as tensile strength, tear resistance, and yarn count.
Step 2: Distinguish between similar organizations.
While Option 2 sounds plausible because we are discussing textiles, ASTM is a broad materials organization. Specific textile chemical testing is often handled by AATCC, but physical material testing falls under the "Testing Materials" umbrella of ASTM.