实验室样品 Laboratory sample
从一批样品中缩分抽取的代表其质量状况的用于分析检验和其他检查的样品。
Sample representative of the quality and condition of the lot, obtained by reduction of the bulk sample and intended for analysis or other examination

试样 Test sample
将实验室样品通过分样器或手工分样，必要时经磨样后的有代表性的样品
Representative portion of the laboratory sample, obtained by dividing by means of a sample divider or by hand, if necessary after reduction of the particle size

试料/检样/被检部分 Test portion
从试样或实验室样品取得的有代表性的物料。
Representative portion of the test sample or laboratory sample