Testing Products

Ordinary Glass Wool Products

Glass Wool Products with Facings/Overlays

Glass Wool Products for Special Applications

Water-Repellent Glass Wool

Centrifugal Glass Wool

Glass Wool for Building Insulation

Glass Wool for Pipe Insulation

Glass Wool for Acoustic Absorption / Soundproofing

Formaldehyde-Free Glass Wool Products

High-Temperature Glass Wool Products

Testing Items

Mean Fiber Diameter

Shot (Bead / Non-Fibrous Particle) Content

Moisture Content

Thermal Conductivity

Appearance

Pipe Section Eccentricity (for pipe sections)

Dimensions and Density

Reaction to Fire / Fire Performance (e.g., combustibility)

Shrinkage Temperature under Hot Load (Hot load shrinkage)

Corrosiveness

Moisture Absorption / Hygroscopic Rate

Water Repellency (Hydrophobicity)

Short-Term Water Absorption (Partial immersion)

Organic Content

Maximum Service / Use Temperature

Bending Load at Rupture (Flexural strength)

Compressive Strength

Testing Standards

Glass wool and its products for thermal insulation: GB/T 13350-2017 (including Amendment 1)

Micro fiberglass wool: JC/T 978-2012

Glass wool products for sound absorption: JC/T 469-2014

Glass wool products for building thermal insulation: GB/T 17795-2019

Glass wool products for marine (shipbuilding) use: CB/T 3829-1998

Thermal insulation materials for thermal power plants: DL/T 776-2019

Refractory fibers and products: GB/T 3003-2017

Service Advantages

The company hosts the National Center for Quality Inspection and Testing of Glass Fiber Products, holding national-level CMA qualification and CNAS laboratory accreditation.

As the lead drafter, the company has formulated or revised over 30 national and industry standards in the field of thermal insulation materials, such as GB/T 13350-2017.

Specializing in testing in the thermal insulation and fiber fields for over 60 years.