Testing Products

Styrene (e.g., EPS, XPS)

Polyvinyl Chloride (PVC)

Polyethylene (PE)

Polypropylene (PP)

Acrylonitrile-Butadiene-Styrene (ABS)

Acrylic

Polyurethane (PU)

Polyamide (PA)

Polytetrafluoroethylene (PTFE)

Polyimide (PI)

Testing Items

Dimensional Tolerance (Deviation)

Appearance

Core Density

Compression Performance (e.g., compressive strength, compressive stress at specified deformation)

Initial (Mean) Thermal Conductivity

Dimensional Stability

Water Vapor Transmission Coefficient (Permeability)

Water Absorption

Reaction to Fire / Fire Performance (e.g., flame spread, heat release)

Allowable Deviation of Mass per Unit Area

Tensile Performance (e.g., tensile strength, elongation)

Oxygen Index (LOI)

Horizontal and Vertical Burning (Ul-94 / GB/T 2408)

45° Angle Burning (Burn angle/hazard)

Flexural Performance (e.g., flexural strength, modulus)

Testing Standards

Plastics (General Methods):

GB/T 2408-2021, GB/T 8333-2022, ISO 3582:2000/Amd.1:2007(E), GB/T 2406.2-2009, GB/T 1040.1-2018, GB/T 1041-2008

Foamed Plastics and Rubbers (including those for cryogenic cold insulation):

GB/T 10707-2008, GB/T 6342-1996, GB/T 8811-1988, GB/T 6343-2009, GB/T 10007-2008, GB/T 9641-1988, GB/T 8812.1-2007, GB/T 21332-2008, GB/T 39936-2021

Polyurethane (PU) Foamed Plastics (spray-applied rigid, rigid for building insulation):

GB/T 21558-2008, GB/T 20219-2015

Flexible (Elastomeric) Foamed Rubber and Plastic Thermal Insulation Products:

GB/T 17794-2021

Moulded Expanded Polystyrene (EPS) for Thermal Insulation:

GB/T 10801.1-2021

Extruded Polystyrene Foam (XPS) for Thermal Insulation:

GB/T 10801.2-2018, BS EN 13164:2012+A1:2015

Rigid Phenolic Foam (PF) for Thermal Insulation:

GB/T 20974-2014

Polyisocyanurate (PIR) Products for Thermal Insulation:

GB/T 25997-2020, ASTM C591-22

Preformed Flexible, Elastomeric, Open/Closed Cell Porous Thermal Insulation in Sheet and Tubular Form:

ASTM C534/C534M-24

Polyolefin Products (preformed tubular/sheet polyolefin thermal insulation products, diene foam products for thermal insulation):

JC/T 2495-2018, ASTM C1427-21

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 JC/T 2495-2018.

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