13728818899

| performance | Chinese Standard | International standards (ISO/ASTM/OECD) | explanation |
|---|---|---|---|
| Appearance, color, and odor | Visual method (often in enterprise standards) | – | descriptive |
| Density/relative density |
GB/T 4472 (Chemical Products) GB/T 611 (Liquid Density) |
ISO 758 (Liquid Density) ASTM D4052 (Digital Density Meter) |
Specific gravity bottle, oscillating tube method, etc |
| Melting point/melting range |
GB/T 617 (Melting Point of Chemical Reagents) GB/T 2386 (Partially Organic) |
ISO 1392 (Crystallization Point) ASTM E794 (DSC method) |
Capillary method, differential scanning calorimetry |
| Boiling point/boiling range |
GB/T 615 (Determination of Boiling Range) GB/T 7534 (Boiling range of volatile organic liquids for industrial use) |
ISO 4626 (Boiling range of volatile liquids) ASTM D86 (Petroleum Products) |
distillation |
| refractive index | GB/T 614 (Refractive Index of Chemical Reagents) |
ISO 5661 (Petroleum Products) ASTM D1218 |
Abbe refractometer |
| vapor pressure | GB/T 23769 (Liquid Chemicals) |
OECD 104 (vapor pressure) ASTM E1194 |
Dynamic saturation vapor pressure method |
| surface tension | GB/T 22237 (Surface Tension of Liquids) |
ISO 304 (lifting ring method) ASTM D1331 |
Platinum Plate/Ring Road |
| viscosity | GB/T 10247 (dynamic viscosity/kinematic viscosity) |
ISO 3104 (kinematic viscosity) ASTM D445 |
Capillary, rotary, and drop ball viscometers |
| solubility | GB/T 6324.5 (Organic Liquids Water Solubility) |
OECD 105 (solubility in water) ASTM E1148 |
Column elution method, shaking flask method |
| Allocation coefficient (log Pow) | GB/T 21854 (High Performance Liquid Chromatography Method) |
OECD 107 (shaking bottle method) OECD 117 (HPLC method) |
Oil water distribution coefficient, used for environmental fate |
| PH value (aqueous solution) |
GB/T 6368 (Surfactants) GB/T 9724 (Chemical reagents) |
ISO 787-9 (General purpose pigments) ISO 10523 (water quality pH) |
Glass electrode method |
| performance | Chinese Standard | International Standard | Typical methods |
|---|---|---|---|
| Purity (main content) | According to product standards (such as GB/T 1919 Industrial Potassium Hydroxide, etc.) | ISO 6353 (General chemical reagents) | Titration HPLC、GC、 gravimetric method |
| Moisture/Moisture Content |
GB/T 6283 (Karl Fischer method) GB/T 606 (Drying Method) |
ISO 760 (Karl Fischer method) ASTM E203 |
Karl Fischer, Loss on Drying |
| ash content | GB/T 7531 (Organic Chemical Products) |
ISO 247 (Rubber Ash Content) ASTM D874 |
residue on ignition |
| Acid value/alkali value |
GB/T 6365 (Acid value of surfactants) GB/T 7304 (Alkali Value of Petroleum Products) |
ASTM D664 (Potentiometric Titration) ISO 6618 |
Acid-base titration |
| Ester value/saponification value | GB/T 14489.3 (Oils and Fats) | ISO 3657 (Animal and vegetable oils and fats) | titration |
| iodine value | GB/T 5532 (Oils and Fats) | ISO 3961 | Iodine chloride addition method |
| Peroxide value |
GB/T 5009.227 (Food Safety) GB/T 5538 (Oils and Fats) |
ISO 27107 | Sodium thiosulfate titration |
| Inorganic anions (Cl ⁻, SO ₄² ⁻, NO ∝⁻, etc.) |
GB/T 3051 (Chloride) GB/T 12737 (Sulfate) |
ISO 622 (Chlorine in Coal) EPA 300.0 |
Ion chromatography, titration |
| Metallic elements (ICP method) | GB/T 30903 (Chemical Products) | ISO 11885 (water/solid) | ICP-OES、ICP-MS、AAS |
| performance | Chinese Standard | International Standard | method |
|---|---|---|---|
| flash point |
GB/T 261 (Closed Cup Method) GB/T 5208 (Quick Balance Closed Cup) |
ISO 2719 (Pensky Martin Closed Cup) ASTM D56 (Closed Tag) |
Closed cup, open cup method |
| Ignition point/self ignition temperature | GB/T 5332 (Flammable Liquids and Gases) | ASTM E659 | Spontaneous combustion temperature tester |
| Thermal stability (DSC/TGA) | GB/T 19466 (Differential Scanning Calorimetry) |
ISO 11357(DSC) ASTM E2550(TGA) |
Thermogravimetric and Differential Thermal Analysis |
| Oxidative stability | GB/T 21186 (Oil and Fat Oxidation Stability) | ISO 6886 (Rancimat method) | Induction time for conductivity measurement |
| explosive | GB/T 21567 (Explosive Testing of Dangerous Goods) | UN series tests (1.1-1.6) | According to the Recommendation on the Transport of Dangerous Goods |
Suitable for industrial grade, reagent grade, electronic grade, etc.:
| project | Typical standards | explanation |
|---|---|---|
| Non-volatile residue | GB/T 6324.2 (Organic Liquids) | Evaporation residue |
| Volatile Organic Compounds (VOCs) | GB/T 23986 (Gas Chromatography Method) | Used for coatings, adhesives, and chemicals |
| residual solvent | Chinese Pharmacopoeia 0861 (Residual Solvent Determination Method) | Headspace GC |
| Polychlorinated biphenyls (PCBs) | GB/T 25000 (Waste/Soil) | GC-MS (Gas Chromatography-Mass Spectrometry) |
| Phthalate esters | GB/T 22048 (Toy Materials) | But chemicals are also applicable |
| Free phenol, free formaldehyde, etc | Each specific standard (such as industrial phenolic resin) | Spectrophotometry, titration |
These are performance data required by regulations such as REACH and China's new chemical substance registration.
| Test Type | OECD Guidelines | Chinese standards (reference) |
|---|---|---|
| Biodegradability (rapid) | OECD 301 A-F |
GB/T 21803 (Respiratory Meter Method) GB/T 21831 (DOC Reduction Test) |
| Inherent biodegradability | OECD 302 B | GB/T 21817 (Improved SCAS Test) |
| Hydrolytic stability (pH dependent) | OECD 111 | GB/T 21855 |
| Photodegradation (in water) | OECD 316 | – |
| Adsorption/desorption (soil/sediment) | OECD 106 | GB/T 21851 (Batch Balance Method) |
| Acute toxicity to fish | OECD 203 | GB/T 27861 |
| Acute toxicity of earthworms | OECD 207 | GB/T 21809 |
| Algae growth inhibition | OECD 201 | GB/T 21805 |
| Bacterial mutagenicity (Ames) | OECD 471 | GB/T 21786 |
| Mammalian chromosomal aberrations | OECD 473 | GB/T 21747 |
The above standards are all used for chemical environmental safety assessment.
For products listed in the Catalogue of Hazardous Chemicals, hazard characteristic testing must be conducted according to the following standards:
GB 30000. x series (Specification for Classification and Labelling of Chemicals, consistent with GHS)
GB 5085.1~7 (Identification criteria for hazardous waste, including corrosiveness, acute toxicity, leaching toxicity, etc.)
GB 12268 (List of Dangerous Goods, Transport Classification)
Typical hazard performance test:
Oxidation (GB/T 21620)
Corrosivity (GB/T 21621, for metals)
Self reactive ability (GB/T 21624)
Release of flammable gases upon contact with water (GB/T 21619)
| Standard series | Content covered | search keyword |
|---|---|---|
| ISO 17025 | General Requirements for Laboratory Testing Capability (Management System) | Not a performance standard, but an evaluation laboratory |
| ISO 6353 | General analytical standards for chemical reagents | Purity and impurity methods |
| ASTM E series (such as E299, E324) | Organic chemical analysis | Acid value, hydroxyl value, moisture content, melting point, etc |
| ASTM D series | Performance of petroleum and solvent products | Flash point, viscosity, distillation range |
| OECD TG | Guidelines for Chemical Testing (over 400 articles) | Physicochemical, Degradation, Toxicology |
If the chemical name or CAS number is known, the corresponding product standards (such as GB/T, HG, ISO standards) can be queried, for example, industrial ethanol has GB/T 6820.
Determine the purpose of the test:
Quality control → check product standards or general methods (such as density, moisture, content)
Transportation safety → Check the classification standards for dangerous goods (UN38.3, GB 12268)
Environmental Release Registration (REACH, China New Chemical Substance Registration Order No. 10) → Refer to OECD Testing Guidelines
R&D formula → check ASTM/ISO performance test (such as interfacial tension, foam behavior)
Utilize database:
China: National Standard Information Public Service Platform(std.samr.gov.cn)
International:ISO.org、 ASTM International OECD iLibrary(ecolink.oecd.org)
Hazard: UN ECE Recommendations on the Transport of Dangerous Goods - Manual of Tests and Standards
| Chemical type | Typical testing standards |
|---|---|
| Organic solvents (toluene, ethyl acetate) | Purity (GC), moisture (KF), density, boiling range, acidity, evaporation residue, flash point |
| Surfactants (such as AEO) | Active substance (GB/T 13173), moisture pH、 Free polyethylene glycol (HPLC), biodegradability (GB/T 15818) |
| Polymer additive (antioxidant) | Melting point (DSC), thermogravimetric analysis (TGA), ash content, metal content (ICP), solution viscosity |
| Inorganic chemicals (sodium chloride, caustic soda) | Main content (titration) pH、 Moisture, water-insoluble substances, chloride/sulfate (ion chromatography) |
| Dangerous chemicals (hydrogen peroxide) | Concentration (potassium permanganate method), stability (GB/T 1616), heavy metals, phosphates and other impurities |
Tel: 0755-82828582
Phone: 13728818899
Email: ata@certata.com

Address: Room 403, 4th Floor, Qianhai Zhichuang Technology Industrial Park, No. 60 Nanchang Road, Nanchang Community, Xixiang Street, Bao'an District, Shenzhen
Phone: 0755-82828582
Mobile phone: 13728818899
Email: ata@certata.com