Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM E3222
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Classification for Determination of High-frequency Impact Sound Ratings
• Chỉ số phân loại Quốc tế (ICS) / By field: 91.120.20 - Cách âm. Chống rung
• Số trang / Page: 4

Phạm vi áp dụng / Scope of standard

This classification provides methods for calculating single-number ratings of high-frequency impact sound transmission, based on one-third-octave-band impact sound pressure levels generated by the standard tapping machine as described in Test Methods E492, E1007, and E2179.

This classification defines ratings that are not defined in other standards. Within their purview, other standards shall define additional ratings based on the methods of this classification.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.