With sadness, we read of the fatality in the nitrous oxide related"Airgas explosion likely loading dock accident"文章Pensacola News Journal。The accident took place at the Airgas facility's Ascend Performance Materials' chemical plant where two semis were delivering the substance. Details are still forthcoming though no intentional act appears to be at play.
We often explain to customers (so often, its on our website) that when goods are to be transported, there are many regulations that need to be followed in order to assess and分类与特定材料相关的危害。这可能是特定商品设计和商业化的重要因素。材料组成的略有变化可能不会改变产品的整体最终用途，但可能会导致其危险分类的变化。
UN/DOT transportation testing of潜在的危险货物需要警惕。“危险货物”可以是纯化学物质，混合物或制造物品。一个工程实验室extensive experience in characterizing the explosive or flammable nature of solids, liquids, vapors and gases is ideal for consideration of all possible accident scenarios. Depending on the classification, some substances may be certified once a year, recertified fairly routinely or require more extensive certification with even subtle changes.
以下测试服务有助于确定以下危害类型的适当运输分类：
Class 3: Flammable Liquids
The flammable liquids classification is determined by evaluating the flash point of the liquid. The packing group is then assigned based on the range at which the flash point of the liquid falls within.
第4类：易燃固体，第4.1区：易燃固体，自反应性物质和固体脱敏爆炸物
The Burning Rate test is used to classify materials as “flammable solids”. The test involves exposing a powder train (250 mm x 20 mm x 10 mm) to a flame or hot wire with a temperature of 1000°C. Classification is then based on the materials burning rate.
Class 4: Flammable Solids, Division 4.2: Substances Liable to Spontaneous Combustion
自热物质测试用于矩阵行列式值ine if substances are “spontaneously combustible”. The test involves exposing various quantities of sample to temperatures of 100°C, 120°C and 140°C for a period of 24 hours. During the exposure time, the temperature of the sample is monitored for exothermic activity. Classification is then based on the occurrence of exothermic activity and the size and temperature at which it occurred.
第4类：易燃固体，第4.3区：与水接触的物质，发射易燃气体
The Dangerous When Wet test is used to determine if the material is capable of generating flammable gases when it comes into contact with water. This is a multistep test that involves exposing the material to small quantities of water and evaluating if flammable gases are generated. Classification is then based on the evidence of flammable gas evolution and the rate at which these gases evolve.
第5类：氧化物质，第5.1级：氧化固体
固体氧化物质测试用于识别材料是否具有危险的氧化特性。该测试涉及将样品与各种已知可燃材料混合，并将燃烧特性与已知氧化剂/燃料混合物的燃烧特性进行比较。然后，分类是基于样品燃烧的强度。请参阅：
这些测试的结果将确定您的材料是否属于这些类别之一，如果是的，则这些材料的危险程度。
想法吗?烧钱率测试可能的主题another blog as questions on this seem to be cropping up among our customers and readers. Our prayers and deepest condolences are with the family of the unfortunate Airgas employee. For more information on危险材料测试or to discuss, please comment here or contact: Paul Osterberg, Director of Flammability Services, FAIOsterberg@fauske.com,630-887-5248
#un dot测试＃未点测试#un运输#HAZARDOUS测试#HAZARDOUS材料#HAZARDOUSE #FLASH点测试
