Ifmaterials are transferred into other containers, the employer mustensure that these are labeled as well, unless they fall under theportable container exemption (paragraph f(7)). In terms of labelingsystems, you can choose to use the labels provided by your supplierson the containers.
Confidence votes 178. Iodine is often called a mordant when used in the gram stain. What its function is, is to form large crystals with the Crystal Violet dye used as the first stain.
Gram stain permits the separation of all bacteria into two large groups, those. which retain the primary dye (gram -positive) and those that take the color of the. counterstain (gram -negative). The primary dye is crystal v iolet and the secondary. dye is usually either safranin O or basic fuchsin.