Test or certification item 测试或认证名称: SAE J 994 - Alarm Backup 倒车蜂鸣器性能试验

 

Test or certification info 测试和认证相关内容:

Low Temperature Test ‧Test temperature :-40±3°C  ‧Test duration :2 hr

High Temperature Test ‧Test temperature : 85±3°C  ‧Test duration :2 hr

Rain Test ‧The rate of rain deposit :2.5(+1.6/-0) mm/min  ‧Deliver angle from nozzle :45° ‧Test duration :2 hr

Vibration Test Resonance Search Test ‧Frequency / Displacement :10 ~ 27 Hz / 6.76mm ‧Frequency / Acceleration :27 ~ 500 Hz / 10g ‧Sweep duration :15m

Vibration Test Resonance Dwell Test ‧Vibration frequency :Resonance frequency  ‧Acceleration :10g ‧Test direction :X axis、Y axis & Z axis  ‧Test duration :30 min/axis

Vibration Test Vibration Cycling Test  Vibration Test Vibration Cycling Test  ‧Frequency :27 ~ 500 Hz  ‧Acceleration :10 g ‧Sweep duration :15 min  ‧Test duration :3 hr ‧Test direction :X、Y、Z axis  ‧Operate time :Last 15 min

Corrosion Test   ‧Type of solution to be sprayed :NaCl ‧Salt solution concentration :5±1%\ ‧pH value of solution :pH 6.5 ~ 7.2  ‧Temperature in chamber :35(+1.1/-1.7)°C  ‧The rate of salt deposit :1~2 ml/hr/80cm2  ‧Test duration :50 hr (24hr exposure and 1hr dry, 2 cycles)

High Pressure Hot Water Test ‧Water temperature :85 °C ‧Water pressure :Above 6.9 Mpa  ‧Water flow rate :Above 18.9 L/min  ‧Nozzle angle :15° ‧Spray distance :Below 300 mm ‧Test period :Spray 10sec(MIN) in each 30sec(MAX)

Dust Test ‧Type of dust :Arizona dust  ‧Dust quantity :4.5 kg/m3  ‧Stirring time :2 sec  ‧Suspending time :15 min  ‧Testing duration :5 hr

Endurance Test at Low Temperature  ‧Test temperatur :-40 °C±3°C ‧Test duration :4 hr ‧Operating time :30 sec On / 30 sec Of

Endurance Test at High Temperature ‧Test temperature :85 °C±3°C ‧Test duration :4 hr ‧Operating time :30 sec on & 30 sec off

Endurance Test at Room Temperature ‧Tes temperature :25 °C±11°C ‧Test duration :100 hr ‧Operating time :30 sec on & 30 sec off

 

Refer products 涉及产品:  汽车喇叭

 

Lead time 周期:  常规服务 regular service 35 工作日 working days （ URGENT service, to be confirm, 加急服务待定 ）

 

Sample size 送样规格:    8pcs finished products 八个成品  

Photo for reference 涉及图片: