Test criteria
|
Test items |
Test stard |
|
Plating thickness-Coulomb method |
GB/T 4955 |
|
Plating thickness-metallographic method |
QB/T 3817 |
|
Plating thickness-electron microscope method |
JB/T 7503, ASTM 8748 |
|
Plating thickness-X-ray method |
GB/T 12961 |
|
Zinc coating quality (weight) |
GB/T 1839, ISO 1460 |
|
Plating composition analysis (energy spectrum method) |
GB/T 17359 |
|
Adhesion strength-thermal shock method/bending method/thermal shock (quenching) |
SJ 20130, ASTM B571, ISO 2819 |
|
Adhesion strength-hot cold cycles, cracks in chrome plating, pores in chrome plating |
GB/T 12600 |
Corrosion resistance test
Corrosion resistance testing is a material that detects the chemical, physical (or mechanical) damage process of metals other materials due to interaction with the environment Experiment. It is an important means to grasp the characteristics of the corrosion system composed of materials the environment, underst the corrosion mechanism, control the corrosion process. &Nbsp;
Main inspection items
Stainless steel 10% oxalic acid corrosion test| Stainless steel sulfuric acid-iron sulfate corrosion test| Stainless steel 65% nitric acid corrosion test|Stainless steel nitric acid-hydrofluoric acid Corrosion test | Stainless steel sulfuric acid-copper sulfate corrosion test | Stainless steel 5% sulfuric acid corrosion test | Neutral salt spray test | Acid salt spray test | Copper ion accelerated salt spray | Sulfur dioxide corrosion test | Hydrogen sulfide corrosion test | Mixed gas corrosion test
Test criteria
|
Test product |
Test criteria |
|
Automotive interior exterior materials parts |
GB/T 1771, GB/T 6461, GB/T 20854, GB/T 24195, GB/T 10125, ISO 9227, ; ISO 10289, ISO 16151, ISO 14993, JIS H 8681-2,EIA-364-26B |
|
Electronic electrical products |
GB/T 2423.17, GB/T 10125 ISO 9227, GB/T 2423.18,IEC 60068-2-52, IEC 60068-2- 11, EN 60068-2-11 |
