AbstractThe effects of storage of solutions in glass bottles at room temperature are compared with the results of various accelerated tests with corresponding solutions in the first paper of this series. The acid tests at room temperature are in good agreement with those at higher temperatures.Relative resistances of glass bottles as shown by accelerated tests with waterroughlyparallel relative resistances appearing in room‐temperature storage of unbuffered, neutral materialsonlyif the various amounts of extraction are approximately the same at both temperatures.The tendency of bottles to produce flakes or insoluble matter in alkaline solutions bears no direct relation to the amount of soluble matter extracted by such solution