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Introduction
With the widespread promotion of LED applications, the requirements for its reliability are becoming higher and higher. The LED reliability test is to evaluate the stability and reliability of the product in a specific environment and use conditions. For LED products, we mainly focus on the lamp bead life, heat resistance, light decay, impact resistance and environmental adaptability and other indicators of the test and evaluation.
LED products or components need to do salt spray test?
[Usually only for products or components with salt spray or risk of corrosion in the working environment]
A Metal and its alloy
B Metal coating, such as tinned nickel plating
C Organic coating, such as spray
D: Anodic oxidation film
Under salt fog chamber that we usually refer to relevant national and industry standards to ensure the accuracy and comparability of test results. for example:
GB/T 10125, ISO 9227 Artificial atmosphere corrosion test salt spray corrosion
ASTM B117 US standard salt spray test
GB/T 2423.17, IEC 60068-2-11 Salt spray test for electronic products
GB/T 2423.18, IEC 60068-2-52 electronics alternating salt spray test
Salt spray test: the LED sample is exposed to salt spray environment, simulate the use scenario in the Marine environment, by observing the change of its surface corrosion, electrical performance changes and other indicators, to evaluate its reliability in a strong corrosion environment.
Artificial simulated salt spray test classification:
(1) Neutral salt spray test (NSS test)
It is the earliest and most widely used accelerated corrosion test method. It uses 5% sodium chloride brine solution, the PH value of the solution is adjusted in the neutral range (6.5~7.2) as a spray solution. The test temperature is set at 35℃, and the settlement rate of salt spray is required to be between 1-2ml/80cm2(h).
【 Neutral salt spray test is the most commonly used test method. If no special instructions are made, the salt spray test we talk about usually refers to the neutral salt spray test 】
(Downlight Spray testing with our Salt fog chamber in JOEO labroom)
(2) Acetate spray test (ASS test)
It is developed on the basis of the neutral salt spray test.
It is to add some glacial acetic acid in 5% sodium chloride solution, so that the PH value of the solution is reduced to about 3.1-3.3, the solution becomes acidic, and the salt spray finally formed is also from the neutral salt spray into acid.
(3) Copper accelerated acetate spray test (CASS test)
It is a rapid salt spray corrosion test recently developed abroad. The test temperature is 50℃, and a small amount of copper salt - copper chloride is added to the salt solution to strongly induce corrosion.
(LED chip salt spray test)
(4) Alternating salt spray testIs a comprehensive salt spray test
It is actually a neutral salt spray test plus constant wet heat test.
It is mainly used for cavity type machine products, through the penetration of tidal environment, so that salt spray corrosion is not only produced on the surface of the product, but also produced inside the product. It is the alternating conversion of the product in the salt spray and wet and hot two environmental conditions, and the final examination of the electrical and mechanical properties of the whole machine product.
(Street light salt spray testing in JOEO lab room with Salt fog Chamber)
| Model | Salt Fog Chamber | STH - 90 | STH-100 | STH-120 | STH-160 | STH-135 | STH-200 | STH-210 |
| Internal Dimension WxHxD (mm) | 900x600x500 | 1000x700x600 | 1200x800x500 | 1600x1000x500 | 1350x850x1200 | 2000x1200x600 | 2100x950x1250 | |
| External Dimension WxHxD (mm) | 1500x1300x1000 | 1560x1000x1350 | 1900x1100x1400 | 2300x1300x1400 | 2160x1200x1450 | 2700x1500x1500 | 2711x1150x1970 | |
| Capacity (L) | 270 | 430 | 480 | 800 | 1377 | 1440 | 2500 | |
| Test Standard | ACSS, SOAK , DRYAIR , HUMI, ROOMAIR | |||||||
| Temperature Range | A: RT (+15 ℃) ~ +85℃ B: -10℃ ~ +85℃ C:-20℃ ~ +85℃ D:-40℃ ~ +85℃ E:-55℃ ~ +85℃ | |||||||
| Humidity Range | 20% ~98% R.H （Temperature RT{+15℃} ~ 80℃） ,15%~95% R.H add dehumidifier or Dryer | |||||||
| Temperature Rising/ Falling Speed Rate |
Temperature rising approx:0.1~ 3.0℃/min( 3-10℃/min whole Course Average-optional) Temperature falling approx:0.3-1.0℃/min ( 3-10℃/min whole Course Average-optional) |
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| Analytic Accuracy/ Distribution Uniformity of Temp & Humidity |
0.1℃ ; 0.1% R.H ±2.0℃ ; ±5% R.H |
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| Control Accuracy of Temperature | ±0.5℃ ±2.5℃ 2%R.H |
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| Pressure Bucket Temperature | Saline test method (NSS ACSS) 47±1℃; Corrosion Test (CASS)63±1℃ | |||||||
| Compressed Air Pressure (KGf) | 1.0-6.0 | |||||||
| Spray Volume | 1.0-2.0ml/80cm²/h (working at least 16 hours, and take the average value) | |||||||
| Compressor | French "Tecumseh" Brand, Germany "Bitzer" Brand or samilar brand | |||||||
| Optional Accessories | Sample shelf , Cart etc | |||||||
| Spray Method | Continuous spray or Programmable spray | |||||||
| Power | AC220V: 1phase3 lines 50/60Hz AC380V: 3 phase 5 lines 50/60Hz |
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You can get more about salt fog spray test from our JOEO Sales Team.Get a Quote Today! 
Other related of Salt spray test for different fields your may interested in,our JOEO corrosion testing equipment accept customize:International Electrotechnical Commission, standard for salt spray
(US) Solid State Technology Association, part of the EIA, standards for salt spray
General Corporation (North America), standard for salt spray
American General Corporation, standard for salt spray
General Motors (Daewoo), standard for salt spray
IPC-Association Connecting Electronics Industries, Standard for salt spray
SE-SIS, standard for salt spray
Japan Industrial Standards Survey, standards for salt spray
Ford Motor standard, standard for salt spray
American National Standards Institute, standards for salt spray
AIA/ NAS-Aerospace Industries Association of America Inc., Standard for salt spray
American Electronic Circuit and Interconnect Industry Association, standard for salt spray
United States Telecommunications Industry Association, standard for salt spray
Aviation Industries Association of America, standard for salt spray
American General Corporation (Europe), standard for salt spray
American Electronic Components, Components and Materials Association, standard for salt spray
American Society of Motor Vehicle Engineers, standard for salt spray
American General Corporation (Global), standard for salt spray
American Electronic Components, Components and Materials Association, standard for salt spray
(US)Federation of Electronic Industries, Standard for salt spray
American Society for Materials and Testing, standard for salt spray
European Electrotechnical Standardization Committee, standard for salt spray
European Committee for Standardization, standard on salt spray
European Aviation Industry Association, standard for salt spray
European Aerospace and Defence Industry Standardization Association, standard on salt spray
General Standards Council of Canada, standards for salt spray
Standards Australia, standards for salt spray
German Institute for Standardization, standard for salt spray
French Association for Standardization, standards for salt spray
（UK）British Standards Institute, standard for salt spray
International Organization for Standardization, standard for salt spray
RO-ASRO, standard for salt spray
HU-MSZT, standard for salt spray
PL-PKN, standard for salt spray
ZA-SANS, standard for salt spray
RU-GOST R, standard for salt spray
KR-KS, standard for salt spray
AR-IRAM, standard for salt spray
ES-UNE, standard for salt spray
ES-UNE, standard for salt spray
Danish Standardization Association, standard for salt spray
CENELEC - European Committee for Electrotechnical Standardization, Standard for salt spray
ECIA - Electronic Components Industry Association, standard for salt spray
AENOR, standard for salt spray
YU-JUS, standards for salt spray
PT-IPQ, standard for salt spray
TIA - Telecommunications Industry Association, Standard for salt spray
NO-SN, standard for salt spray
FI-SFS, standard for salt spray
TR-TSE, standard for salt spray
CZ-CSN, standard for salt spray
Indonesian standard, standard for salt spray
Lithuanian Bureau of Standards, standards for salt spray
SAE-SAE International, standard for salt spray
GOSTR, standard for salt spray
IN-BIS, standard for salt spray
VN-TCVN, standard for salt spray
Taiwan local standard, standard for salt spray
AT-ON, standard for salt spray
ASD-STAN - Aerospace and Defence Industries Association of Europe - Standardization, standard for salt spray
IT-UNI, standards for salt spray
BE-NBN, standard for salt spray
TH-TISI, standard for salt spray
Korea Science and Technology Standards Agency, standard for salt spray
International Federation of Trucks and Engines (US-INTERN renamed US-NAVISTAR), standards for salt spray
International Truck and Engine Company, standards for salt spray
Industry Standard - Petrochemical, standard for salt spray
Industry Standard - Aviation, standard for salt spray
Industry standards - Ships, standards for salt spray
No issuing authority, standard for salt spray
Industry standard - Machinery, standard for salt spray
Industry standard - Electronics, standard for salt spray
Industry standard - Aquatic products, standard for salt spray
Industry Standard - Marine, standard for salt spray
Industry Standard - Agriculture, standard for salt spray
Industry standards - Geology, standards for salt spray
Ministry of Industry and Information Technology, Standard for salt spray
Industry Standard - Light industry, standard for salt spray
Industry standard - Petroleum, standard for salt spray
Industry standard - Aerospace, standard for salt spray
You can get more about salt fog spray test from our JOEO Sales Team.Get a Quote Today! 
