长期以来,我国大部分棉花分级室都是采用自然光照,即采用北向窗自然昼光。而采用自然光的棉花分级室,受环境和气候条件所限,最大的缺点就是光源变化时鉴定棉花品级有一定的影响。 为了改善我国棉花分级室的检测条件,保证检验结果的准确性,许多纤维检测中心和产地的棉花分级室已开始引进国际上普遍采用的 For a long time, most of China’s cotton grading rooms use natural light, that is, the use of natural daylight north of the window. The use of natural light cotton grading room, subject to environmental and climatic conditions, the biggest drawback is the light source changes in the identification of cotton grade have a certain impact. In order to improve the testing conditions of the cotton grading room in our country and ensure the accuracy of test results, many fiber testing centers and cotton grading rooms in the producing areas have begun to introduce internationally accepted