Testing Products

Rock Wool Strips for External Wall Insulation

High-Strength Rock Wool Boards for Roofing

Rock Wool for Industrial Equipment Insulation

Rock Wool Boards for Curtain Wall Fire Protection and Insulation

Fire Barrier Strips (Fire Protection Zones)

Rock Wool for Interior Sound Insulation (Acoustics)

Rock Wool for Metal-Faced Sandwich Panels

Rock Wool for Internal Insulation of Steel Structures

Rock Wool Rolls / Blankets

Stitched Rock Wool Mats / Quilts

Testing Items

Appearance, Pipe Section Eccentricity

Organic Content / Loss on Ignition

Shrinkage Temperature under Hot Load / Elevated Temperature Shrinkage

Stitch Quality (for stitched mats)

Corrosiveness (Corrosion to metals)

Linear Shrinkage on Heating (Under specified conditions)

Rigidity (Flexural rigidity / Resistance to bending)

Dimensions and Density

Mean Fiber Diameter

Shot (Non-Fibrous Particle) Content

Thermal Conductivity

Reaction to Fire / Fire Performance

Moisture Absorption (Hygroscopic) Rate

Water Repellency (Hydrophobicity)

Water Absorption (Total / Partial immersion)

Maximum Service / Use Temperature

Noise Reduction Coefficient (NRC)

Testing Standards

Rock wool, slag wool and their products

(covering: rock wool, slag wool and their products for thermal insulation; thermal insulating mineral fiber pipe; mineral wool sprayed insulation; thermal insulating mineral fiber blanket for commercial and industrial use; mineral fiber block and board thermal insulation; mineral fiber blanket and blanket-type pipe thermal insulation (metal mesh covered) – industrial type; rock wool thermal insulation products for construction; thermal insulation products for buildings – factory-made mineral wool products; rock wool products for external thermal insulation of building walls):

GB/T 11835-2016, ASTM C547-22a, GB/T 26746-2011, ASTM C553-13(2019), ASTM C612-14(2019), ASTM C592-24, GB/T 19686-2015, BS EN 13162:2012+A1-2015, GB/T 25975-2018

Microfiber basalt wool and its stitched mats: GJB 6254-2008

Granulated (Loose) wool for sound-absorbing boards: JC/T 903-2012

Rock wool products for fire barrier strips in buildings: JC/T 2292-2014

Metal-faced insulating sandwich panels for buildings: GB/T 23932-2009

Mineral fiber blanket insulation for light frame construction and manufactured homes: ASTM C665-23

Rock wool, mineral wool and their products for marine (shipbuilding) use: CB/T 3830-1998, GD17-2014

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

Refractory fibers and products: GB/T 3003-2017

Mineral wool decorative acoustic panels: GB/T 25998-2020

Man-made mineral fiber insulation: JIS A9504-2024

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 11835-2016 and GB/T 19686-2015.

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