Glasses, protective

Break-glass detectors detect the high frequencies produced when glass is broken or cut with a glasscutter. These are the most cost-effective methods of glass protection in most cases and are especially suited to areas accessible to the public. 

Figure 7.1 HSG has pioneered the commercialization of ultraviolet-curable hybrid glass protective coatings. 

One-liter round-bottomed flask, two small beakers, lamp with 100 W bulb (as a spotlight), black cardboard, water bath, stand, safety glasses, protective gloves. 

Overhead projector, Petri dish 15 cm in diameter and 2 cm high, stand, bosses, clamps, alligator clips, electric cable, DC transformer (22 V), paper clips (or iron wire) as electrodes, filter paper (diameter 12.5 cm), safety glasses, protective gloves. 

Fireproof support or porcelain dish, safety glasses, protective gloves. Chemicals... 

Ceramic wire gauze, crucible tongs, glass rod, spatula, two small glass vessels (5-mL and 25-mL), filter paper, safety glasses, protective gloves. 

Two test tubes (16 x 160 mm)> two stands with fixing devices, 200-mL beaker, pneumatic through, pipette, safety glass, protective gloves. 

Two glass cylinders 30 x 3.5 cm, two beakers (600-mL and 50-mL), magnetic stirrer, 25-mL burette, glass rods, safety glasses, protective gloves. 

L beaker, hcatcr-stirrcr hotplate with stir bar (oder gas burner as heat source and stirring rod), thermometer, 1-mL pipette, safety glasses, protective gloves. 

Two 250-mL Erlenmeyer flasks with ground-glass stoppers, ten large test tubes with cork stoppers, seven small test tubes, two test tube stands, porcelain spatula or spoon, safety glasses, protective gloves. 

Atomizer or sprinkler, 2 large beakers, brush, Erlenmcyer flask with stopper, absorbent paper or oatmeal wallpaper (white), safety glasses, protective gloves. 

Five large test tubes with stand, dropping pipette, glass rods, flat porcelain dish, drying cupboard, powder bottle, porcelain spatula, safety glasses, protective gloves. 

---