YS/T 612-2014 "Paste for Solar Cells" standard specifies the requirements and related test methods for pastes used for the front electrode, back electrode and back electric field electrode of crystalline silicon solar cells. The standard includes inspection rules for pastes, marking Encasement, transportation, storage requirements, as well as mass certificates and contents of the contract. The scope of application of the standard covers various types of pastes required in the production process of crystalline silicon solar cells. The standard refers to a series of relevant national standards, such as tin-lead solder, specification for precious metal pastes for microelectronics technology and test methods, to ensure the mass Stability and Reliability of pastes during production and use.