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              美標 SAE J 994 倒車蜂鳴器性能試驗
              


              

              


              


              

              

              

              


              

              

              

              

              


              

              


              

              更新時間
              2024-12-28 20:00:00
              價格
              請來電詢價
              測試周期
              5-7天
              寄樣地址
              深圳寶安
              價格費用
              電話詳談
              聯系電話
              17324413130
              聯系手機
              17324413130
              聯系人
              羅卓文
              立即詢價

              詳細介紹
              Test or certification item 測試或認證名稱: SAE J 994 - Alarm Backup 倒車蜂鳴器性能試驗
              Test or certification info 測試和認證相關內容:
              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涉及產品:  汽車喇叭
              Lead time周期:  常規服務 regular service 25 工作日 working days （ URGENT service, to be confirm, 加急服務待定 ）
              Sample size送樣規格:    8pcs finished products 八個成品  
              Photo for reference 涉及圖片:


               
              

              

              

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