What equipment is described as field-portable as a self-contained backpack with a serial number?

• A. Quicksilver Kit
• B. A pH meter
• C. A sample bag
• D. A Cooler

Answer: (A)

Field-portable, self-contained kits packaged in a backpack with a serial number are designed for rapid, traceable field deployment. The idea is to have everything needed for sampling and analysis in one ready-to-use package, with a unique serial for inventory control and traceability of who used it and when. The Quicksilver Kit fits this description because it’s described as a complete field kit that you carry in a backpack, ready for field work, and issued with a serial number for tracking. This makes it convenient for deployment, ensures consistency across uses, and supports proper record-keeping in the field.

A pH meter, while portable, is typically a single instrument rather than a full self-contained backpack kit; it may require additional accessories and calibration materials stored separately. A sample bag is simply a container for collecting material and lacks the integrated tools and organizational setup of a field kit. A cooler is a portable container for preserving samples, not a complete field kit with a serial-numbered backpack.