Which of the following is an example of non-friable asbestos?

Vinyl-asbestos floor tile is an example of non-friable asbestos because it is composed of bonded materials that hold the asbestos fibers securely in place, thus preventing the fibers from easily becoming airborne under normal handling conditions. Non-friable asbestos materials are generally considered less hazardous than friable asbestos since they do not crumble or disintegrate easily, which reduces the likelihood of asbestos fibers being released into the air during typical use.

In contrast, materials like sprayed-on ceiling insulation and pipe insulation are generally considered friable because they can release asbestos fibers into the air when disturbed or damaged. Transite board, while it can be non-friable, often becomes friable when it is aged or improperly handled, making it an uncertain example in some contexts. This distinction is crucial for ensuring proper safety measures are taken when handling or working in environments where asbestos may be present.