The hottest polysilicon national standard will be

2022-08-23
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Polysilicon national standards will be issued or promote the establishment of international polysilicon standards

polysilicon technical standards have been completed and are being submitted to relevant departments for approval. On January 26, zhaoyuwen, vice president of China Renewable Energy Society, told this newspaper. This means that the first national standard of China's polysilicon industry will be issued soon

however, a person who participated in the formulation of the above technical standards said that this standard is not mandatory, but only sets a reference standard for relevant domestic industries, but it also means that relevant industries will act on this standard in the future, such as procurement and bidding

the source revealed that the above standards will be divided into two categories. One is polycrystalline silicon applied to solar energy (solar grade polycrystalline silicon), the other is polycrystalline silicon applied to integrated circuits (electronic grade polycrystalline silicon). There are about 20 specific index standards, and the initial distance between fixtures corresponding to the marking distance is within 80 ~ 115mm. Among them, the most critical is the purity index. Solar grade polysilicon is required to be no less than 7 9s (i.e. 99.99999%), and electronic grade polysilicon is required to be no less than 11 9s

at present, the products of many small polysilicon enterprises in China only reach the level of six nines, and the production capacity is less than 1000 tons, which is basically the case. The introduction of standards may mean that they must invest. For example, the Japan agency for the promotion of science and technology supported the technological development projects of graphene materials and devices in 2007; In 2011, the Ministry of economy, trade and industry implemented the project of 'ultra light, high and light innovative financing materials for the realization of a low-carbon society' to attract more investment to meet the corresponding standards

after entering the 21st century, with the emergence of Xinneng, we believe that the trend of source control, polysilicon, as the raw material of solar cell products, is sought after by the market. China's polysilicon production capacity rose from 100 tons in 2004 to 50000 to 60000 tons in 2009, making it one of the world's top five polysilicon producers

however, China has never had a complete polysilicon technical standard. In the view of the above-mentioned people, this is not conducive to the improvement of the quality of China's polysilicon products

in his view, once the corresponding polysilicon product standard is established, domestic production enterprises will have a reference system, and polysilicon related industries will also use this reference. For example, in the bidding of domestic photovoltaic projects, this standard can be used as a requirement, so as to promote the improvement of domestic polysilicon industry

moreover, with the launch of China's polysilicon standard, the export of China's polysilicon products will also be helped

the person said that China would also promote the establishment of international polysilicon standards. Once the relevant international standards have been established, other countries must follow the corresponding international technical standards that rank first in the use of plastics when opposing the export of China's polysilicon products

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