China Testing & Certification International Group Co., Ltd. (CTC, Stock Code 603060) originated from the testing and certification business of China Building Materials Academy in the 1950s. After 70 years of unremitting efforts and persistent pursuit, the company has formed five business categories: detection and testing, certification and evaluation, testing instruments and intelligent manufacturing, measurement and calibration, scientific research and technical services, committed to providing customers with technical services and comprehensive solutions of detection and testing, certification and evaluation, appraisal, consultation, training, and instruments and equipment in fields of quality, environmental protection, green, safety, health, and energy conservation.

Aerogel is a three-dimensional nanoporous solid material prepared by sol-gel methods combined with supercritical drying (or innovative ambient pressure drying) technologies. It boasts a porosity exceeding 90%, with air typically accounting for over 90% of its volume. Aerogels exhibit ultra-low thermal conductivity, light weight, high strength, multifunctionality, and structural designability. China‘s “14th Five-Year Plan” identifies aerogels as a key development direction for green building materials, while the EU’s Carbon Border Adjustment Mechanism (CBAM) is driving the industry‘s low-carbon transformation.
Aerogel Blankets / Felts
Aerogel Boards / Panels
Aerogel Fabric / Textiles
Aerogel Paper (Thin Felts / Sheets)
Aerogel Granules / Particles
Aerogel Powder
Aerogel Coatings (Paints / Insulation slurries)
Aerogel Custom Shapes / Profiles (Molded parts)
Appearance, Dimensions, Bulk Density
Mass Loss Rate under Vibration (Particle shedding / Dust resistance)
Compression / Spring-back Recovery Rate (Elastic recovery)
Flexibility (Bendability) / Rigidity (Stiffness)
Bending Load at Rupture (Flexural strength)
Thermal Conductivity
Permanent Linear Change on Heating (Heat shrinkage)
Tensile Strength
Maximum Service / Use Temperature
Moisture Absorption (Hygroscopic) Rate
Volume Water Absorption
Water Repellency (Hydrophobicity)
Squareness Deviation (Perpendicularity of edges)
Flatness (Surface deviation)
Corrosiveness (Corrosion to metals)
Compressive Strength
Reaction to Fire / Fire Performance
Aerogel thermal barrier sheets (pads) for lithium-ion traction batteries: T/CSTM 00193-2020
Flexible aerogel thermal insulation materials: ASTM C1728-23
Nano-porous aerogel composite thermal insulation products: GB/T 34336-2017
Aerogels for low-temperature (cryogenic) service: T/CSTM 00393-2022
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 34336-2017.
Specializing in testing in the thermal insulation and fiber fields for over 60 years.
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