General use jars collect soil and media samples for testing processes. The thick walled construction is chemically resistant to meet semi-volatile substance testing. Available in clear or amber tint manufacturing, the archiving containers can store even sensitive materials. With a typical wide-mouth design, contents can easily be added or removed. Featuring embossed graduations, jars assist instant optical specimen measurements. General use jars may be purchased with septa or lined caps or without a closure.