ASTM stands for?

ASTM stands for the American Society for Testing and Materials. This organization plays a significant role in developing standards that ensure the quality and performance of various materials, products, systems, and services. These standards are critical in industries like construction and manufacturing, where safety, reliability, and efficiency are paramount.

The mission of ASTM includes promoting public health and safety, ensuring quality, and fostering international trade by creating uniform standards that are widely recognized. This makes the correct choice A, as it accurately reflects the name and purpose of the organization.

The other options do not correctly represent the formal name or mission of ASTM, which is crucial for maintaining clarity and precision in technical and industry standards.