Testing Products

Ferrous (Iron) Raw Materials

Siliceous Raw Materials

Aluminous Raw Materials

Gypsum

Phosphogypsum

Industrial By-product Gypsum

Coal

Testing Items

Ferrous, Siliceous, Aluminous, and Ferrous (Iron) Raw Materials:

Silicon (SiO₂), Iron (Fe₂O₃), Aluminum (Al₂O₃), Calcium (CaO), Loss on Ignition (LOI), Sulfur Trioxide (SO₃), etc.

Gypsum:

Free water content (surface moisture), Combined water (crystal water), Sulfur Trioxide (SO₃), Calcium Sulfite Hemihydrate (CaSO₃·½H₂O), Silicon Dioxide (SiO₂), Ferric Oxide (Fe₂O₃), Aluminum Oxide (Al₂O₃), Calcium Oxide (CaO), Magnesium Oxide (MgO), Titanium Dioxide (TiO₂), Potassium Oxide (K₂O), Sodium Oxide (Na₂O), Chloride Ion (Cl⁻), Fluoride Ion (F⁻), Phosphorus Pentoxide (P₂O₅), Carbon Dioxide (CO₂), pH value, Water-soluble Phosphorus Pentoxide (P₂O₅), Water-soluble Magnesium Oxide (MgO), Water-soluble Potassium Oxide (K₂O) and Sodium Oxide (Na₂O), Water-soluble Chloride Ion (Cl⁻), Water-soluble Fluoride Ion (F⁻), Acid-insoluble matter, Loss on Ignition (LOI), Water-soluble Chromium (VI) [Cr(VI)].

Phosphogypsum:

Free water content (surface moisture), Calcium Sulfate Dihydrate (CaSO₄·2H₂O) content, Water-soluble Phosphorus Pentoxide (P₂O₅), Water-soluble Fluoride Ion (F⁻), Water-soluble Magnesium Oxide (MgO), Water-soluble Sodium Oxide (Na₂O), Chloride Ion (Cl⁻), Radioactivity, pH value.

Industrial By-product Gypsum:

Gypsum grade, Free water content (surface moisture), Chloride Ion (Cl⁻) content, Setting time, Normal consistency water demand, Soundness by boiling method (paste pat method), Fluidity of cement mortar, Compressive strength of cement mortar, Compatibility of cement with water-reducing admixture, pH value, Radioactivity, Sulfur Trioxide (SO₃), Combined water (crystal water), Soluble Phosphorus Pentoxide (P₂O₅), Fluoride Ion (F⁻) content, Calcium Sulfite (CaSO₃) content.

Coal:

Proximate analysis, Transmittance of coal (for young coals), Total moisture, Calorific value (heating value), Total sulfur, Carbonate carbon dioxide (CO₂) content, Coal ash fusibility, Carbon (C), Hydrogen (H), Nitrogen (N), Chlorine (Cl), Fluorine (F).

Testing Standards

Ferrous, Siliceous, Aluminous, and Ferrous (Iron) Raw Materials: JC/T 850, JC/T 874, etc.

Gypsum: GB/T 5484

Phosphogypsum: GB/T 23456

Industrial By-product Gypsum: GB/T 21371

Coal: GB/T 211, GB/T 212, GB/T 213, GB/T 214, GB/T 215, GB/T 218, GB/T 219, GB/T 16658, GB/T 16659, GB/T 2566, GB/T 30733, GB/T 3558, GB/T 4633, GB/T 476

Service Advantages

National-level quality inspection center, focused on serving the quality improvement of the cement industry for nearly 40 years.

Professional team: nearly 90% of technical staff hold a bachelor‘s degree or higher, and nearly 70% hold engineer or higher titles.

Comprehensive service methods: full coverage of testing parameters, along with targeted skill enhancement services.

Professional service attitude: ensures objective, accurate, and impartial data.

Authoritative service capability: lead editor of numerous national and industrial standards.

Served major national key projects, including the Three Gorges Dam, Baihetan Hydropower Station, and Wudongde Hydropower Station.