When it is
necessary to protect a sample from light, the Whirl-Pak® black bag is specially
designed for this application. The polyethylene film is made from pigmented
resins so the black color is an integral part of the bag and not a printed
layer. The result is an opaque bag providing maximum protection for samples
that are sensitive to light. It is ideal for pharmaceuticals, seasonings,
flavors, food supplements, vitamins, marine life, and many other liquid or
solid products. It is FDA approved for food contact.
The white,
write-on strip makes sample identification easier and more convenient. It's
easy to write on this white strip using an ordinary ballpoint pen, pencil, or
felt-tip marker. The paper-like finish virtually eliminates ink smearing, and
provides a surface that will accept a variety of writing instruments.
Capacity is
measured in fluid ounces when the bag is closed and tab is folded over three
times. Volume and dimensions are approximate; bags should not be used at
temperatures above 180° F (82° C). Bags can be frozen to any temperature, even
liquid nitrogen - careful handling required after freezing. All bags are
sterilized after manufacturing.
