Standard thermocouple measuring end point at copper (1084.62 ℃), aluminum point (660.323 ℃) or antimony point (630.63 ℃) and zinc Point (419.527 ℃), the reference junction temperature is 0 ℃, its thermoelectric power should meet the following requirements: E (tCu) = (10.575 ± 0.015) mv E (tAl) = 5.860 + 0.37 [E (tCu) -10.575] ± 0.005mV E (tAsb) = 5.553 + 0.37 [E (tCu) -10.575] ± 0.005mV E (tZn) = 3.447 + 0.18 [E (tCu) -10.575] when using the first-class standard platinum-rhodium thermocouple test lower levels of standard thermocouple, first-class standard platinum-rhodium thermocouple reference thermocouple and measured ± 0.005 mV end should be in at 0 ℃. End of the thermocouple reference junction and copper wires can be inserted in the transformer oil containing mercury or glass, the mercury inside the tubes should have the same height, how much platinum and rhodium thermocouple, a height of about 10mm. Glass tube outer diameter of about 7mm, platinum and rhodium thermocouple, inserted into the depth of 100 ~ 120mm. Zero reference terminal can also be placed in the automatic thermostat, the specific method steps shall be approved by the State Administration of metering issued a "standard platinum and rhodium 10 - platinum thermocouple test procedures" (JJG75-95) performed. Platinum and rhodium thermocouple sales, Anhui GSM (certified), platinum-rhodium thermocouple is provided by Anhui Global instrument cable Limited. Anhui Global instrument cable Limited (www.ahqqtyb.com) is Chuzhou, temperature instrumentation leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Anhui Global leadership with the staff warmly welcome all inquiries negotiations to create the Global Anhui better future.