ASTM E90

Definition

ASTM E90 is a standard test method developed by ASTM International for measuring the sound transmission loss of building materials and assemblies. This test helps determine how well a material or assembly can block sound from one space to another, which is crucial in evaluating the acoustical performance of various construction elements.

5 Must Know Facts For Your Next Test

1. ASTM E90 provides a framework for measuring the effectiveness of materials and assemblies in reducing sound transmission, with results often reported in decibels (dB).
2. The test involves creating a controlled environment where sound is generated on one side of a wall or assembly, and the amount of sound that passes through is measured.
3. Understanding ASTM E90 is vital for architects and engineers when designing spaces that require specific acoustic performance, such as recording studios and theaters.
4. The results from ASTM E90 testing can inform choices in materials and construction techniques to enhance sound insulation in buildings.
5. ASTM E90 is part of a series of standards related to acoustics, including those assessing impact sound and airborne sound ratings.

Review Questions

• How does ASTM E90 influence the selection of materials for sound insulation in building design?
  • ASTM E90 directly impacts the selection of materials by providing standardized measurements of sound transmission loss. When architects and engineers assess building materials, they rely on these results to choose options that effectively minimize noise transfer between spaces. Understanding the test outcomes allows professionals to design environments that meet specific acoustic criteria, ensuring comfort and privacy in residential, commercial, and performance venues.
• Discuss the relationship between ASTM E90 and Sound Transmission Class (STC) ratings.
  • ASTM E90 serves as the foundational testing method for determining Sound Transmission Class (STC) ratings. STC values are derived from the data obtained through ASTM E90, indicating how well a building partition reduces sound transmission. A higher STC rating signifies better sound insulation, which is essential for creating quiet environments. Thus, professionals use ASTM E90 results to validate STC ratings during the material selection process.
• Evaluate the impact of ASTM E90 testing on architectural acoustics and its relevance in modern construction practices.
  • ASTM E90 testing has significantly influenced architectural acoustics by establishing reliable benchmarks for sound transmission loss. This standardization aids architects in designing spaces that adhere to modern acoustic requirements, particularly in urban settings where noise pollution is prevalent. With an increasing focus on occupant comfort and productivity, understanding ASTM E90 allows for informed decisions regarding materials and construction methods, ultimately enhancing the acoustic quality of various environments.

Related terms

Sound Transmission Class (STC): A rating that measures how well a building partition attenuates airborne sound, calculated based on the results from tests like ASTM E90.

Decibel (dB): A logarithmic unit used to measure sound intensity, which plays a critical role in determining sound transmission loss as outlined in ASTM E90.

Acoustic Insulation: Materials specifically designed to reduce sound transmission, often evaluated using ASTM E90 to ensure they meet performance standards.