Introduction 1 Features long-lasting high-purity zinc reference electrode mainly applied than in seawater and chloride content of the soil which is relatively high. Because it is made of metal with a compressive pressure characteristics and therefore can be used in relatively large metal structures at the bottom. 2, long-term high-purity zinc reference electrode main technical indicators of high-purity zinc reference electrode critical current density of the main technical indicators: + 38 ~ -10uA / cm2; potential accuracy: ≤ ± 60mV; electrode design life: according to the requirements of the design; open potential: -940 mV (vs, SHE). 3. Specifications Material Material Type for the environment shapes the life of high-purity zinc reference electrode CX- Ⅰ cylindrical> 6 high-purity zinc, used in seawater, brackish water of high purity zinc reference electrode CX- Ⅱ cylindrical> 6 zinc alloy, with in seawater, brackish water in