Answer :
Final answer:
The ASTM E-84, or Steiner Tunnel Test, is used for testing the flame spread and smoke developed index of interior wall and ceiling textile finishes for safety and compliance.
Explanation:
The testing method and standard used for interior wall and ceiling textile finishes is ASTM E-84, also known as the Steiner Tunnel Test. This test measures the surface burning characteristics of building materials and is a widely recognized method for evaluating the flame spread and smoke developed index of interior finishes.
The test involves exposing a material sample to a controlled flame front and recording how far and how fast the flame spreads. The results of this test are crucial for determining the safety and compliance of materials used in indoor environments, where fire safety is of paramount importance.