Whirl-Pak® 可直立取样袋使样品采集处理和测试更加容易，因为采样袋本身可以直立，它能保证用户可以顺利进行一些需要用到双手的重要实，。当样本放在里面，底部特别的设计使袋子底部变平，袋子便直立了。它在使用中就像一个烧杯或瓶子，但它的价格比其更低，已做无菌消毒，不会破裂，而且存放的时候只占用一小部分空间。

白色标记带使样品更加容易识别，可以很方便的在这白色书写带上用一般圆珠笔，铅笔或者记号笔标记下样品的信息。

The Whirl-Pak® Stand-Up Bag makes sample handling and testing much easier because it gives users the ability to perform important laboratory functions with both hands, because the bag will stand compley by itself. No rack or other holder is needed to keep the bag upright. When the sample is placed inside, the special gusseted bottom flattens out, allowing the bag to stand up on its own. It works just like a beaker or bottle, however, it costs less, is sterilized, won’t break, and uses only a fraction of storage space as the other containers.

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.