Shenzhen STE Testing Laboratory Co., Ltd
Background of Reliability Testing
Reliability testing is the activity performed to evaluate the product's ability to maintain functional reliability under all environments such as expected use, transportation, or storage over a specified life span. It is to expose the product to natural or artificial environmental conditions to withstand their effects in order to evaluate the performance of the product under the environmental conditions of actual use, transportation and storage, and to analyze and study the degree of influence of environmental factors and their mechanism of action. By using a variety of environmental testing equipment to simulate high temperature, low temperature, high temperature and high humidity and temperature changes in the climate environment to accelerate the response of the product in the use of environmental conditions to verify whether it meets the quality objectives expected in research and development, design and manufacturing, so as to assess the overall product to determine the product reliability life.
Usually, the purpose of conducting reliability tests on products is as follows:
(1) To make the product reach the predetermined reliability index in the development stage. In order to make the product reach the predetermined reliability index, it is necessary to conduct reliability test on the sample in the development stage, so as to find out the problems in raw materials, structure, technology, environmental adaptability, etc., and to improve them, and after repeated tests and improvements, the reliability index of the product can be continuously improved to reach the predetermined requirements.
(2) Reliability identification during product development and finalization. When the new product is developed and finalized, the identification test should be conducted according to the product standard (or product technical conditions) in order to fully evaluate whether the product meets the specified reliability index.
(3) Control the quality of products in the production process. In order to produce products stably, sometimes it is necessary to conduct reliability tests for each product according to the items specified in the product technical conditions. In addition, it is also necessary to conduct reliability sampling test batch by batch or according to a certain period. The reliability test of the product can understand the stability of the product quality. If the product quality decreases due to the poor quality of raw materials or the uncontrolled process, it can be reflected in the reliability test of the product, so that corrective measures can be taken in time to restore the product quality to normal.
(4) Screening the products to improve the reliability level of the whole batch of products. Reasonable screening can eliminate the products with early failure caused by various reasons (such as defective raw materials, improper process measures, negligence of operators, malfunctioning of production equipment, and strict quality inspection, etc.), so as to improve the reliability level of the whole batch of products.
(5) Research the failure mechanism of the products. Through product reliability tests (including simulation tests and field use tests), we can understand the failure modes and failure laws of products in different environments and under different stress conditions. Through the analysis of the failed products, we can find out the intrinsic causes of product failure (i.e. failure mechanism) and the weak links of the products, so that we can take corresponding measures to improve the reliability level of the products.
气候环境检测：
测试项目 | 参考标准 | 能力范围 |
Low temperature test | GB/T 2423.1-2008; IEC 60068-2-1: 2007 EN 60068-2-1: 2007 | -40℃，1m×1m×1m |
High temperature test | GB/T 2423.2-2008; IEC 60068-2-2: 2007 EN 60068-2-2: 2007 | +150℃，0.5m3 |
Constant humidity and heat test | GB/T 2423.3-2016; IEC 60068-2-78: 2012 EN 60068-2-78: 2013 | Temperature range: -40℃~150℃ Humidity range：20%RH~98%RH；1m×1m×1m |
Alternating heat and humidity test | GB/T 2423.4-2008; IEC 60068-2-30: 2005 EN 60068-2-30: 2005 GB/T 2423.34-2012; IEC 60068-2-38: 2009 EN 60068-2-38: 2009 | Temperature range: -40℃~150℃; Humidity range: 20%RH~98%RH; 1m×1m×1m |
Salt spray test | GB/T 2423.17-2008; IEC 60068-2-11:1981 EN 60068-2-11:1999 | Equipment capacity: 90L |
| GB/T 4208-2017 IEC 60529-1989+Amd 1-1999+Amd 2-2013+Cor 2- | IPX1~IPX8; IP1X~IP6X |
机械类检测：
测试项目 | 参考标准 | 能力范围 |
Vibration test | GB/T 2423.10-2008; IEC 60068-2-6: 2007 EN 60068-2-6: 2008; GB/T 2423.56-2006 IEC 60068-2-64: 2008;EN 60068-2-64: 2008 | Maximum thrust: 3kN; Maximum acceleration: 1000m/s2 Frequency range: 5Hz~2000Hz; maximum displacement: 25mm Maximum table load: 120kg |
Mechanical impact test | GB/T 2423.5-1995; IEC 60068-2-27: 2008 EN 60068-2-27: 2009 | Half sine wave; Impact acceleration range: 150~15000m/s2 Pulse duration: 0.5~18ms; maximum table load: 5kg Size of working table: 200×200mm |
Drop test | GB/T 2423.8-1995; IEC 60068-2-31: 2008 EN 60068-2-31: 2008 | Drop height: 30~150cm; maximum table load: 70kg |
IK test (protection level of the housing against external mechanical impact) | GB/T 20138-2006; IEC 62262: 2002 EN 62262: 2002 | Impact energy: 5J, 10J, 20J |
燃烧类检测：
测试项目 | 参考标准 |
Scorching wire test | GB/T 5169.10-2006; GB/T 5169.11-2006; GB/T 5169.12-2013; GB/T 5169.13-2006 IEC 60695-2-10:2013; IEC 60695-2-11:2014 IEC 60695-2-12:2010+A1: 2014; IEC 60695-2-13:2010+A1: 2014 EN 60695-2-10:2013; EN 60695-2-11:2014 EN 60695-2-12:2010+A1: 2014; EN 60695-2-13:2010+A1: 2013 |
Needle flame test | GB/T 5169.5-2008; GB/T 5169.16-2008; GB/T 5169.17-2008 IEC 60695-11-5:2016; IEC 60695-11-10: 2013; IEC 60695-11-20: 2015 EN 60695-11-5: 2017; EN 60695-11-10:2013; EN 60695-11-20:2015 |
Leakage trace test | GB/T 4207-2012; IEC 60112:2003+A1: 2009; EN 60112:2003+A1: 2009 |
Horizontal combustion test | UL94; GB/T 2408-2008 |
Vertical burning test | UL94; GB/T 2408-2008 |
其他检测：
测试项目 | 参考标准 |
Pressure resistance test | GB/T 1408.1-2016; ASTM D149-2009(2013); IEC 61180-1-2010; GB/T 17627.1-1998 |
Roller drop test | GB/T 2423.8-1995; IEC 60068-2-32-2007 |
Wire bending test | IEC 60335-1-2010/Amd 2-2016/Cor 1-2016; GB/T 2099.1-2008 |
Ball pressure test | GB/T 5169.21-2006; IEC 60695-10-2: 2014; EN 60695-10-2:2014 |
Temperature rise test | Each enterprise standard |
Chemical reagent resistance test | Each enterprise standard |
Plugging test | Each enterprise standard |
IT products and their peripherals: cell phones, tablet PCs, walkie-talkies, mice, keyboards, audio, etc;
Wearable electronic products: headphones / Bluetooth headphones, smart watches / bracelets, VR glasses, etc;
Car electronic products: car navigation, car recorder, car camera, T-box, instrument panel, car charger, car monitor, car lights, window control system, central control, etc;
Electronic components: resistors, inductors, capacitors, PCBs, etc;
Household electronic products: cameras, televisions, lamps, power adapters, etc;
Non-electric products: cell phone covers/bags, packaging boxes, wire harnesses, connectors, hardware products, etc;
Other products: plastics, rubber, leather, textiles, tapes, automotive interior and exterior trim, etc.
