Last year I was on a secondment to a new team. They're all lovely people and continue to be very supportive of my learning curve. One of the benefits of being part of this team is unrivaled access to spare B bags. B bags are used to house the secondary chip samples from RC drilling. These samples are stored in large barrels in the event that an error occurs at the labrartory when assaying the A sample. Every so often, we make a duplicate sample to validate the lab process. This creates spare B bags. As a result, they are used for all sorts of things, from wiping the mud of vehicles, to temporary sun shades. The B bags are made of calico and sized with a water-resistant starch of some kind.
