ISO 26101-1:2021

Apply For Services

ISO 26101-1:2021 is an international standard published by the International Organization for Standardization (ISO) that defines test methods for qualifying acoustic spaces as anechoic or hemi-anechoic. It specifies procedures for measuring the performance of these spaces and determining if they meet the requirements of a free sound field. The standard was updated in 2021 and includes detailed instructions for discrete-frequency and broad-band testing, as well as a qualification procedure for omni-directional sound sources.