Dongsheng Axminster Carpet Certified to ISO 354: 0.31 Sound Absorption Coefficient, NRC 0.3
2026-11-03
Dongsheng Carpet has added ISO 354 sound absorption certification to its Axminster range. The sample the mill submitted returned a sound absorption coefficient of 0.31 and a noise reduction coefficient (NRC) of 0.3, giving the range a measurable acoustic figure to put in front of specifiers.
Seven certifications, five performance areas
Dongsheng's Axminster range already holds CRI, EN 13501, ASTM E648, ASTM D2859, BS 4790 and ISO 105 certification. With ISO 354 added, Dongsheng now covers indoor air quality, flame spread, smoke density, colour fastness and sound absorption in one quality system, and the range meets the technical requirements of four- and five-star hotels and commercial venues. Consultants, contractors and buyers get all five report sets from Dongsheng, without testing the same product at several suppliers.
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COMPANY STRENGTH
Our in-house designers and engineers have produced countless great designs for customers from different industries
COMPANY STRENGTH
Our in-house designers and engineers have produced countless great designs for customers from different industries
What buyers check
Standard held
Indoor air quality
CRI
Flame spread and burning behaviour
EN 13501, ASTM E648, ASTM D2859, BS 4790
Smoke density
ASTM E622
Colour fastness
ISO 105
Sound absorption
ISO 354 (α 0.31, NRC 0.3)
What NRC 0.3 actually does on site
Tested in a reverberation room, Dongsheng's Axminster sample returned a sound absorption coefficient of 0.31 and an NRC of 0.3. At that level the carpet takes the edge off mid- and high-frequency reflection and shortens reverberation, which suits the large floor areas of cinema auditoriums, hotel ballrooms and guest-floor corridors: dialogue comes through cleaner, and the noise of trolleys and conversation drops. Laid wall to wall, the woven Axminster floor forms one continuous absorptive surface, which is why Dongsheng recommends broadloom over carpet tiles for auditorium and ballroom work.
Custom build and delivery from Dongsheng
Cinema auditoriums and hotel floors are routine work at Dongsheng; for cruise and ferry interiors the mill confirms IMO FTP Code documentation per project before quoting. Orders are built to project dimensions, design, pile height, face weight, backing construction and flame-retardant requirement. Dongsheng's carpets are in service across high-end commercial and residential projects worldwide, and the mill supplies custom carpet flooring solutions to clients globally.