depth gauge

• Diving accessories - depth gauges and combined depth and time measuring devices - functional and safety requirements , test methods
  潜水设备附件.深度仪和深度及时间组合测量设备.功能和安全性要求试验方法
• Diving accessories - depth gauges and combined depth and time measuring devices - functional and safety requirements , test methods ; german version en 13319 : 2000
  潜水设备附件.深度规和深度及时间组合测量设备.功能