Fig. 1: Glass Plate, Palette knives, Air Tight Containers, Spatula, Brass Rod & Porcelain Evaporating Dish
Porcelain Evaporating dish: about 12cm in diameter. Glass plate: 10mm thick and 45cm square or large. Brass Rod: 3 mm in diameter and 10 cm long. All the equipments should be cleaned and dried before each test.