Posts Tagged ‘science’

This Time – Forensics Science

Forensics science is getting more and more popular at this time. But what is forensics all about?
More commonly known as forensics, forensics science consists of a wide range of applications related to the legal system both for civil and crime actions. Over the last years, life-based documentaries and television crime series have made forensics science a part of popular culture. It seems like forensic investigations are not that difficult to understand. Thus, according to the laws and methodology of forensics science, experts gather all the information that is to be used in a court of law for the conviction of a criminal.

Forensics science has a very long tradition in the history of mankind, as it seems to have been practiced by the Romans for example. Records do exist in Europe and in some Far East countries such as China. By the 18th century, legal systems had already started using treatises in support of forensic medicine meant to clarify deaths and justify prosecution. This is how medical experts even came to detect arsenic intoxication, thus, managing to deal with poisoning cases. Every discovery in police diagnosis thus had a share in the growth of forensics science in its present day form.

The applications or sub-divisions that are presently belonging to the wider domain of forensics science include toxicology, criminalistics, forensic geology, forensic anthropology, applied science and so on. As it results from these examples, the relevance of the forensics science is not necessarily related to the act of justice. There are certain subdivisions that serve well for archeology, geography and ethnology purposes for instance. Forensic anthropology analyzes human remains, allowing the understanding of various cultural and historical aspects depending on the context and the exact place where the evidence was found.

Controversies have also existed over the years, mainly related to some aspects of forensics science that are not considered scientifically valid. For the moment, forensic dentistry can no longer convince whether the bite marks belong to one person, without any shade of a doubt. Many convicts were released in the US, in 1999, precisely because the dental evidence that was used for their conviction could have been wrong. Although it has come a long way, forensics science has a sinuous path to cover before reaching perfection.

Laboratory Construction: How To Get The Best From It

When you are in a place where lab construction is important for you, remember that there are many features that you need to consider. Whether you are looking to house one worker or twenty, remember that your lab construction will go a long way towards keeping them comfortable and keeping them safe.

Making sure that your lab is compliant with the safety guidelines outlined for COSHH testing is just the beginning; there are lots of things to remember when you want to have a safe and comfortable lab. In addition, equipment will need to meet the strict requirements of industry, hospitals and the education sectors in terms of quality, flexibility, cost and low maintenance.

A huge section of COSHH is the design of your lab because when you do your lab designs you’ll have to make sure you put the proper safety measures in that will keep both your and your employees from getting hurt. Your storage areas and your work areas will have to be safe and in order so they can do their work safely, and it is also important to monitor the health of your workers.

If you’re seeking to ensure that all of your workers are in comfort, then you should definitely try out some ergonomic furniture. This type of furniture does a great job of flowing with the body’s curves instead of forcing a body into unnatural positions that will result in pain later on. This will definitely help guard the employees from back and spinal issues later on, so it’s something that you will want to look into.

Remember that the lab worktop and the lab chair are going to be the prime considerations that you will have to think about when you are looking to make your workers comfortable. Are the things that they need to look at at eye level and can the cabinets be accessed without strain or undue stress? The lab stools should be height adjustable, ideally without arms to allow easy access, and preferably be on a 360 degree swivel base. Each worker is then able to adjust the chair to be at the correct height for the lab worktop.

Remember that you will also need to get a bit of decent storage too. This is especially important when it comes to buying a lab sink, as it needs to have space either above or below it to store items. You should also look into the different types of lab taps which can have an elbow lever that is used in medical settings. These are all things that you need to look into when purchasing lab equipment.

Remember that if your goal is to comply with the COSHH testing standards, then you need to purchase laboratory safety cabinets. Get some fume cabinets for your lab as well as fume hoods for when your employees are working with chemicals that could prove detrimental to their health. Laboratory maintainance will be a lot simpler if you have safety equipment, and the laboratory taps that control gas flow to Bunsen burners must also comply with all of the guidelines.

Set aside a bit of time to ensure that you are able to comprehend and effect decent lab construction. It is a thing which may effect worlds of difference when creating a lab that will serve both your needs and the needs of your employees. Good lab construction will determine the amount of efficiency and safety at which you and your staff are able to work.

The Various Uses of Antimony

Antimony metal is mined all over the world and its main derivative is antimony trioxide. This product has many uses including as a flame retardant synergist, a catalyst, a clarifying agent, an opacifier, or a white pigment. Because there are so many applications you will find that the industries using it are just as varied. Plastics, textiles, glass, paint, and construction are just a few of the industries that use antimony.

Antimony oxide is a flame retardant synergist so it cannot be used by itself as a flame retardant. The antimony works in combination with a halogen flame retardant. The presence of the antimony allows you to use half as much halogen as you would otherwise to achieve the same level of flame protection. Many different kinds of materials use the antimony/halogen combination for flame retardant additives. Polyurethanes, polyvinyl chloride (PVC), epoxies, ethylene propylene diene M-class rubber (EPDM), phenolics, acrylnitrile butadiene styrene (ABS), polypropylene (PP), polyethylene (PE), and high impact polystyrene (HIPS) are just a few of the plastics that use it. Plastics companies use many additives like antimony trioxide fire inhibitor synergist in a variety of ways. Antimony trioxide is a white powder and is usually sold in multi walled paper bags or large super sacks. Other packaging options include drums or kegs. This is similar to how halogen flame retardants are sold. If industrial hygiene is a concern, you can find some companies that will sell you a liquid dispersion that includes both already mixed in the right ratios.

The glass industry also uses antimony oxide as a clarifying agent. Many glass manufacturers purchase antimony oxide clarifying agent to help with the quality of their product. The clarifying agent is added to glass to make it clear from inclusions and clear in color. The bubbles, inclusions, and colors that the glass maker does not want in the final product are removed by adding the antimony during the meltdown process. If there was no clarifying agent, the natural impurities in sand would turn glass light green or light blue. Some clarifying agents have problems of their own because over time they react with ultraviolet light, but antimony trioxide is not one of these. One example is with manganese oxide which turns the glass purple over time as it starts to break down.

{Antimony is also used as a catalyst in the polymerization of polyethylene terephthalate or PET.The polymerization of polyethylene terephthalate or PET requires a catalyst and antimony is used for that purpose as well.} PET is what is used to make water bottles or other containers. The material used for this purpose in generally of a higher purity than the material used for flame retardant or glass clarifying applications. Many manufacturers use this catalyst because the cost/performance ratio is very good. There are other choices that work better as catalysts, but they are prohibitively expensive.

Because it is a white powder, antimony is sometimes used as a white pigment The most common industries to use it for that purpose are the porcelain and enamel industries that use it as an opacifier. Companies can purchase antimony is many ways like as a antimony trioxide flame retardant and as a result it is used in many final products. No matter who you are or what you do, the chances of you coming in contact with a product that contains antimony or was made with antimony in the process are extremely high every day of your life.