Dangerous Goods Packaging Technology.
There are thousands of dangerous goods, all of them can be divided into ten categoriesaccording to their hazardous features, named as explosive materials, oxidizers, compressed gases and liquefied gases, spontaneous combustion, water combustible materials, flammable liquids, flammable solids, toxic chemicals, corrosion of goods, radioactive materials, and some have two or more items at the same time dangerous properties.
Toxic product packaging should be clearly marked toxic signs. The main measures are antivirus package does not leak tight, airtight. Such as potassium dichromate (potassium dichromate) and sodium dichromate(sodium dichromate), red with transparent crystal, toxic, solid application attached to drums, barrels should not leak tight, iron thickness of not less than 1.2mm. A class of organic pesticide product should be loaded into the asphalt sacks, tight seam does not leak. Such as plastic bags or paper bags outside packaging should be tote sacks,cloth bags,PP bags or PP woven bags. Used as a rodenticide zinc phosphide is highly toxic, and strict application of plastic bags and then loaded sealed wooden box, box with two layers of kraft paper, waterproof paper or plastic film liner, so isolated.
For corrosive goods, pay attention to the product and packaging container material chemical changes. Metal packaging containers in the vessel wall to be painted with paint to prevent corrosion product container corrosion. For example drum to the inner wall of the packaging coated with a synthetic fatty acid protective layer to prevent corrosion of iron are commodities, and thus the product also will degenerate. Again hydrofluoric acid is an inorganic acid corrosive goods, is highly toxic, can corrode glass containers can not be used glass bottles, metal drums or plastic drums should be loaded, but then packed in wooden cases. Volatile acid, which is corrosive gases should be loaded good acid altar, glass or plastic bucket, tightly sealed, and then into strong wooden or metal drums.
Phosphorus and other goods liable to spontaneous combustion on the packaging, should be loaded in the drum wall thickness of less than 1mm, the barrel must be coated with acid-resistant protective layer of the inner wall, the barrel filled with water, and to water immersion goods, bung tightly closed barrel, net weight not exceeding 50 kg. Again through the water bow [ from burning items such as calcium carbide, water is decomposed and flammable acetylene gas, apply the sturdy metal pail, bucket filled with nitrogen. If the bucket is not filled with nitrogen, you should put the gas piston device.
For flammable, explosive product, e.g., a strong oxidizing, trace impurities, or in case that the explosive decomposition caused by heat of explosion products. Effective method is the use of explosion-proof packaging plastic drums, plastic drums and then into the drum or wooden boxes, each weight of not more than 50 kg, and should automatically put the gas valve when the gas pressure reaches a certain barrel when can automatically deflated.