test glass

He reached forward and picked up the test glass.

To illustrate the inanity of some Federal regulations, the Vice President demonstrated how the Government tests glass ash trays by smashing them against a wooden board.

At the press of a button, the Declaration, which is always exhibited and stored in an upright position, travels up from this level through interlocking doors which open before the document finally comes to rest in a case of solid bronze, protected by ballistically tested glass and plastic laminate.

In addition to the basic instruments that Mel Cooper had brought with him, there was now a scanning electron microscope fitted with the X-ray unit, notation and hot-stage 'scope setups for testing glass, a comparison microscope, a density-gradient tube for soil testing and a hundred beakers, jars and bottles of chemicals.