Document Details |
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| Name of Department/Committee : | CED 12 |
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| Document Number : | CED 12 ( 25128) |
| Document Title [English] : | Acoustics Determination of acoustic properties in impedance tubes Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance |
| Document Title [Hindi] : | ध्वनिकी — प्रतिबाधा ट्यूबों में ध्वनिक गुणों का निर्धारण — भाग 2: सामान्य ध्वनि अवशोषण गुणांक और सामान्य सतह प्रतिबाधा के लिए दो-माइक्रोफोन तकनीक |
| Document Type : | New |
| Language : | English |
| Priority : | 3 |
| ICS Code : | 17.140.01 |
| Date of Project Approval : | 26-03-2024 |
| Standards to be Superseded : | |
Classification Details |
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| Group : | Civil Engineering Design and Construction |
| Sub Group : | Physical planning of buildings |
| Sub Sub Group : | Building orientation, day lighting, sound & thermal insulation and accessibility for all |
| Aspects : | Methods of tests |
| Risk : | None |
| Certification : | None |
| Short Commom Man's Title : | |
| ITCHS Code : | |
| Ministry : |
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| Sustainable development Goals : | |
| Degree of Equivalence : | Identical under dual numbering |
| Identical/Equivalent Standards : | ISO 10534-2:2023 |
| Organization Type: | ISO |
| Sl.No. | Synosis Points | |
| 1 | This test method covers the use of an impedance tube, two microphone locations and a frequency analysis system for the determination of the sound absorption coefficient of sound absorbing materials for normal incidence sound incidence. | |
| 2 | It can also be applied for the determination of the acoustical surface impedance or surface admittance of sound absorbing materials. | |
Timeline Details |
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Stages |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 26-03-2024 | ------- | ||
| 2 | P-Draft Waived | 27-03-2024 | ------- | ||
| 3 | WC Draft | 27-03-2024 | Duration : 31 Days Submitted for HOD approval |
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| 4 | WC Draft | 27-03-2024 | WC approved by HOD |
CEDC | ------- |