tailieunhanh - Environmental Sampling and Analysis for Metals - Chapter 19 (end)

Phòng thí nghiệm an toàn Rules Trước khi Bắt đầu từ Bất kỳ loại công việc trong phòng thí nghiệm, nó là quan trọng để hiểu những mối nguy hiểm tiềm năng trong phòng thí nghiệm, để trở thành quen thuộc với các quy tắc và biện pháp phòng ngừa, và để nhận biết và tránh những nguyên nhân của Những mối nguy hiểm. Theo Để an toàn lao động và Luật Y tế (OSHA), "[E] d ¬ døy sử dụng Có trách nhiệm chung để MỖI của nhân viên Cung cấp một nơi làm việc miễn phí từ các mối. | 19 Laboratory Safety Rules Before beginning any type of laboratory work it is important to understand the potential hazards in the laboratory to be familiar with the precautions and rules and to recognize and avoid the causes of those hazards. According to the Occupational Safety and Health Act OSHA E ach employer has the general duty to furnish each of the employees a workplace free from recognized hazards causing or likely to cause death or serious harm. Comprehensive safety training is essential for all laboratory workers. LABORATORY HAZARDS Laboratory hazards can be categorized as chemical hazards fire hazards and careless habits. Chemical Hazards Virtually all chemicals are toxic to some extent and care should be taken in handling them. Chemical hazards may be minimized by the following precautions. Cleanliness Cleanliness in the laboratory is essential Wash hands periodically and immediately after contact with chemicals and just before leaving the laboratory. Never drink from laboratory glassware. Keep work areas clean. Clean working areas before and after work. Use clean laboratory coats and aprons. These garments are designed to protect the body from chemical spills. Dirty clothing can be a source of health hazards and contamination. Eye Protection The eyes are especially susceptible to injury from chemicals. Breakage of glass containers of acid bases and other chemicals and out-of-control chemical reactions are the principal hazards. Safety glasses goggles or face shields should be worn during laboratory work. In the event of chemical spray in eyes immediately flood the eyes with water using a specially designed eye-wash fountain or quick flushing with water from the nearest tap and seek medical attention as soon as possible. Skin Contact with Certain Chemicals Chemical burns can result from contact with strong acids or bases. Certain chemicals are absorbed through the skin. Because many chemicals absorb rapidly .