Reference
Certifications
EN standards applicable to OPUS underlayment products, regulatory compliance references, and acoustic testing notes for European market distribution.
EU Standards Reference
Applicable European standards for underlayment testing, classification, and acoustic assessment
| Standard | Title | Application | Status |
|---|---|---|---|
| EN 16354 | Laminate floor coverings — Underlays for laminate floor coverings — Specification | Underlayment specification and classification for use with laminate flooring | Certification in progress |
| EN ISO 717-2 | Acoustics — Rating of sound insulation in buildings and of building elements — Part 2: Impact sound insulation | EU-standard acoustic measurement for impact sound improvement (ΔLw, dB) | Certification in progress |
| REACH | Registration, Evaluation, Authorisation and Restriction of Chemicals (EU Regulation No 1907/2006) | Chemical compliance for products placed on the EU market | Documentation available |
| RoHS | Restriction of Hazardous Substances in Electrical and Electronic Equipment (EU Directive 2011/65/EU) | Hazardous substance restriction — applied as additional compliance reference | Documentation available |
| ASTM E492 | Standard Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine | North American IIC testing method — values reported in current catalogue edition | North American standard |
| ASTM E90 | Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements | North American STC testing method — values reported in current catalogue edition | North American standard |
| EN 1264 | Water based surface embedded heating and cooling systems | Applicable to CORK 20-P installations over warm-water underfloor heating systems | Reference standard |
Acoustic testing note: All IIC and STC values listed in this catalogue are measured to North American standards (ASTM E492 / ASTM E90). EU-equivalent impact sound improvement values (ΔLw, dB) per EN ISO 717-2 testing are in progress for the European market. Updated EU acoustic data will be incorporated into a subsequent catalogue edition. Trade partners requiring EU acoustic data for specification purposes should contact OPUS directly.