Sound-absorbing material testing and inspection report

How much does it cost to test sound-absorbing materials? What are the inspection project standards? How to apply for test report? To get tested, go to Baiqian!

Example of test report

Test items:

Sound absorption coefficient, noise reduction coefficient, all items, air flow resistance, sound absorption, reflection coefficient, acoustic admittance, acoustic impedance, flow resistance, size (geometric size, size deviation), sound absorption, mass moisture content, surface Sound scattering characteristics, physical phase of asbestos, sound insulation performance, appearance, standing wave tube method to detect sound absorption coefficient, reverberation chamber method to detect sound absorption coefficient, 1/3 octave band sound absorption coefficient, test steps, practical sound absorption coefficient , mesh deviation, reflection factor, acoustic admittance rate, acoustic impedance rate, mass per unit area, standard value of tensile bearing capacity of a single anchor bolt, compression rebound rate, density, operable time, tensile strength perpendicular to the direction of the board surface Strength, water absorption (water absorption, vacuum water absorption, volume water absorption), tensile strength perpendicular to the board surface (tensile strength/tensile strength perpendicular to the surface/tensile strength perpendicular to the board surface), compressive strength, Density (apparent density, bulk density, dry density, dry apparent density), density/dry density/dry apparent density/bulk density, water absorption/water absorption, tensile strength perpendicular to the board surface/perpendicular to the surface (of) tensile strength/tensile strength, compression ratio, compression permanent deformation, insulation system poly/operable time, zirconium dioxide, verticality, flatness, wire diameter, tensile strength perpendicular to the direction of the board surface/ Tensile strength, density (dry apparent density/apparent density/dry density/density), tensile strength perpendicular to the surface/tensile strength perpendicular to the board direction, water absorption, density/apparent density, compressive strength or Compressive stress at 10% deformation, plastic/density, insulation system glue/alkali-resistant strong retention rate, insulation system glue/water immersion tensile bonding strength, thermal conductivity, water absorption (water absorption, volumetric water absorption), insulation board/ Apparent density, volumetric water absorption/water absorption, volumetric moisture absorption, insulation layer structure, insulation board/compressive strength, monomer combustion test, compressive strength (compressive stress at 10% deformation), hemispheric emissivity of reflective insulation materials, Moisture content, tensile strength perpendicular to the board surface (surface), titanium dioxide

Testing standards:

1. JG 149-2003 Expanded polystyrene board thin plastered exterior wall External insulation system

2. ASTMC423-2017 Method 5 for determining sound absorption and sound absorption coefficient using the reverberation chamber method

3. GB/T 16731-1997 "Determination of sound absorption products for buildings" Sound absorption performance classification" 4.1

4. TB/T 3122-2019 "Acoustic components of railway sound barriers" TB/T 3122-2019

5. GB/T5480-2017 Mineral wool Test methods for its products

6. GB/T 10294-2008 AbsoluteDetermination of steady-state thermal resistance and related characteristics of thermal materials Protected hot plate method

7. GB/T 30804-2014 Determination of tensile strength perpendicular to the surface of thermal insulation products for buildings

8 , GB/T 20284-2006 Single combustion test of building materials or products

9. GB/T25998-2020 Mineral wool decorative sound-absorbing panels

10. ASTM C423-2017 Mixed Standard test method for sound absorption and sound absorption coefficient by sound chamber method 10

11, JGJ 144-2004 Technical regulations for exterior wall insulation engineering

12, JG/T 515-2017 Phenolic foam board thin plaster exterior wall external insulation system material

13. BS EN ISO 9053-2:2020/ISO 9053-2:2020 Acoustics - Determination of air flow resistance - Part 2: Alternating air flow BS EN ISO 9053-2:2020/ISO 9053-2:2020

14. GB/T 20313-2006 Determination of moisture content of building materials and products Drying method

15. GB/T 18696.1-2004 Measurement of sound absorption coefficient and acoustic impedance in acoustic impedance tubes Part 1 Standing wave ratio method GB/T 18696.1-2004

16. GB/T13480-2014 Determination of the compression properties of thermal insulation products for buildings

17. GB/T 8813-2008 Determination of the compression properties of rigid foam plastics

18. QB/T 3897-1999 Galvanized welded wire mesh

19. ASTMC 423-2017 Method for determining sound absorption and sound absorption coefficient using the reverberation chamber method ASTMC423-2017

20. GB/T 1549-2008 Chemical analysis method for fiber glass< /p>

Uses of test reports

Shopping malls, e-commerce shelves, internal quality control, bidding, university scientific research, etc.

Test report validity period

Generally, the test report will indicate the time when the laboratory received the sample and the time when the report was issued. There will be no expiry date marked on the test report. If it has been used on an e-commerce platform, they generally only approve it within one year. So it also depends on the platform or the buyer’s requirements.

Testing time period

Generally 3-10 working days (except for special samples), please consult customer service for details.

Testing costs

Due to the different complexity of test items and experiments, please contact customer service for details before making a quotation.

Detection process