This article introduces the photometry in ECE regulations and USA standards,and analyzes the demands of lamp application in detail.

From the aspect of industry development,the environmental standards must be upgraded entirely and carry out the environmental authentication to improve the environmental standard of products and enhance the international comp.

The industry development on silicon has been limited through national industrial policies and environmental standards in terms of high energy consumption and serious pollution.

This paper analyses the effect of environmental standards and circular economy on foreign trade, and then reviews the negative effect of lower environmental standards on China s foreign trade.

As the environmental protection standard becomes more and more strict,the eletric dust collection which can not satisfy the up to date emission standard must be reconstructed.

Methods Data of weight and height(length)came from 17712 healthy children under 7-year-old through a growth survey in Shanghai in 2005,which was divided into 22 groups by age,gender resident location(urban and subur-ban),was used to compare with WHO and American CDC standards.