October 28th, 2013
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September 28th, 2013
Unlike gold testing and other non destructive testing functions performed by XRF analysis, heavy metals testing (e.g. lead and palladium testing) comes under the hazardous materisals heading since such metals are relatively dangerous, not least when it comes to children’s jewelry. It becomes hazardous if the quantities of the metals are more than the permissible level. Platinum metal can be very harmful if the platinum corrosion reaches a level that is too high. Therefore platinum operation and analysis in the XRF laboratory is important.
1. Lead content is strictly monitored by X-ray fluorescence technology so that toys and utensils do not become harmful.
2. Platinum is rather inert and can be used in wide variety of methods, but the X-ray evaluation of a small sample of platinum can give one the exact quantity of platinum and the excess amount can be removed.
3. This precaution is only possible due to XRF technology because the precision and accuracy it provides is unparalleled.
4. Lead evaluations are made to pinpoint the location of extra lead paints and layers. NIST standards are references for the apt checking, and the SUD directives are used to measure it properly.
5. SRM 2579 of paint is calibrated and evaluated for the presence of the metal.
6. There are many evaluator tools, among which GOLDD technology is the latest tool used in the market. It delivers instant results with small detection levels.
There are many varieties of XRF analyzers, such as field mobile analyzers and different handheld analyzers, so one must choose the proper instrument to fit one’s needs.
August 29th, 2013
the hub of a nation for centuries, is filled with historic sites, and offers a wealth of arts, then you will want to go to London. One way to make a trip to London more affordable is to utilize the best hostels in London for your accommodations. A london hostels is often less expensive to stay at than a hotel, yet offers many of the same benefits.
Because London is such a large city, you will want to look at a map to determine what you want to visit, and then stay at a nearby hostel. London boasts several, so there are many from which to choose. You will have a choice from shared or private rooms at hostels in London. london hostel A shared room is one in which you will reserve a bed in a large, dormitory-style room that will hold many guests. Rooms are usually single sex accommodation.
Prices are very reasonable for shared and private rooms at London hostels. You might find shared rooms in a London hostel for as little as twelve US dollars a night, or a private room starting at forty-seven US dollars per night.
Amenities vary from london hostel to hostel, but just because you are paying reasonable rates for accommodations do not be surprised by how many nice amenities are often available. Many London hostels offer restaurants and bars, so you do not need to cook if you do not wish to, for example. Breakfast is often included in the price of your stay at hostels in London, making getting ready in the morning easier. Many have elevators and wheelchair access. Several also offer Internet and telephone availability, so you can always get in touch with your family and friends at home.
Safety is a concern for anyone traveling, and this is also true for those staying in a hostel. London vacationers will want to check that the London hostel accepts credit cards, so that you do not have to carry different currencies of cash, and that locked storage is available for your valuables. These are both normally offered at London hostels, but it pays to inquire before you make a reservation. Many hostels in london accept groups of people, so you may want to travel with a group of friends as well. Your arrival time may also be a consideration for safety when staying at a hostel. London travelers will want to check that their hostel offers a reception area that is open round the clock. Many do.