无添加剂（No Additive）

红色安全头盖指示此类采血管在试管内没有添加任何添加剂，用于血清生化，血库和血清学相关检验。Orsin真空采血管进行了特殊工艺处理，无论是玻璃管还是塑料管，其内壁能有效避免血细胞附壁，最大限度减少标本体外溶血。使检测结果更加准确。 Red cap tubes, with red safety caps to indicate this type of blood collection tubes not containing any additive in the test tube, are used in serum biochemistry, blood banks and serology related tests. Processed with special treatment, Orsin vacuum blood collection tubes, either glass or plastic, can effectively avoid blood cell attached on its inner wall and reduce the in vitro hemolysis of specimen to the greatest extent, so as to guarantee more accurate test result.