Overview
ISO 29770:2022 specifies equipment and procedures for the determination of thickness of thermal insulating products used for impact sound insulation in floating‑floor applications. The standard defines how to measure product thickness under specified loads and conditioning to ensure consistent, comparable results for manufacturers, test laboratories and specifiers. Keywords: ISO 29770:2022, thermal insulating products, floating‑floor, thickness determination, impact sound insulation.
Key topics and technical requirements
- Scope: Measurement of thickness of insulating products for floating floors to evaluate impact sound mitigation characteristics.
- Principle: Thickness is measured as the distance between a rigid base plate and a rigid pressure plate under specified pressures.
- Apparatus:
- Dial gauge with 0.1 mm resolution mounted on a rigid frame, or an equivalent compression‑testing machine with displacement measurement to ±0.1 mm and force sensor to ±1%.
- Base and pressure plates at least as large as the specimen.
- Pressure devices capable of applying total pressures of 0.250 kPa, 2 kPa, and 50 kPa (and an additional short‑term 48 kPa load).
- Test specimens:
- Square specimens, (200 ± 1) mm sides; retain skins, facings and coatings.
- Number of specimens: as per product standard, otherwise 10 specimens.
- Conditioning and test conditions:
- Normal: (23 ± 5) °C (dispute: 23 ± 2 °C and 50 ± 5 % RH).
- Tropical alternative: (27 ± 2) °C and (65 ± 5) % RH (must be stated in report).
- Procedure:
- Measure thickness under 0.250 kPa after (120 ± 5) s.
- Measure thickness under 2 kPa after (120 ± 5) s; apply additional 48 kPa for 120 s and measure remaining thickness after 120 s or 300 s as specified.
- Report mean values rounded to 0.1 mm.
- Reporting: Test report must reference ISO 29770:2022 and include product ID, sampling, conditioning, test conditions, individual and mean thickness values, and any deviations.
Applications and users
ISO 29770:2022 is used by:
- Manufacturers and quality control labs to verify product thickness and consistency.
- Independent testing laboratories for conformity testing and product certification.
- Acoustic and building engineers specifying floating‑floor systems where impact sound insulation and declared thickness influence performance.
- Product standards authors and regulatory bodies comparing thermal/acoustic product characteristics.
This standard supports accurate specification, quality assurance and performance comparison for insulating materials used under floating floors.
Related standards
- ISO 29768 - Thermal insulating products for building applications - Determination of linear dimensions of test specimens.
- Developed by ISO/TC 163 (in cooperation with CEN/TC 88).