Water Filter Comparison - What is the Meaning of Certification?

Water filter comparison and choice is greatly simplified by the system of certification used for home water filters. One of the criteria for choosing a ...

By: DLangford

Water filter comparison and choice is greatly simplified by the system of certification used for home water filters. One of the criteria for choosing a filter should be whether or not it is certified by one of the three accredited testing organizations: The National Sanitation Foundation International (NSF), The Underwriters Laboratories (UL), or The Water Quality Association (WQA).

What Does It Mean to Meet a Standard?

Suppose a filter has the NSF seal of approval for Standard 53. What does this mean? Does it mean they have met all the standards set for each contaminant tested under Standard 53? No! You always need to ask, "For what contaminant or contaminants have they met Standard 53?"

A manufacturer claims that their filter can remove a list of specific contaminants. NSF is a neutral third party which uses rigorous standards and methods for testing that filter to see if it really does remove those specific impurities. For the impurities that pass the reduction test, it issues its NSF "seal of approval" saying, "This filter effectively reduces these contaminants."

If they have met the reduction standard for lead, for example, that means they have the "seal of approval" for reducing lead to an acceptable level. You can see that one filter might effectively reduce one health-related contaminant and another effectively reduces 15 health-related contaminants and both get to claim NSF seal of approval for Standard 53. So look closely at what has been tested and verified.

What does the Term Reduced Mean?

A second question that needs clarification is what does the term "reduced" mean? When NSF says a filter "reduces" lead in the water, what does that mean? Is it reduced to a specific level or is it "reduced" in a relative sense meaning "lowered the amount of"?

Let me try to clarify. The Environmental Protection Agency (EPA) has set two standards for each contaminant. One is called the MCL or the Maximum Contaminant Levels and the other is the MCLG or the Maximum Contaminant Levels Goal. The first is what is required of public water utilities and the second is the ideal level they should be aiming at. The public water utility is required to inform the public on each contaminant and if they don't reach the MCL for a contaminant they must point it out to the public in their annual water quality report.

It is this former standard, the MCL or Maximum Contaminant Levels standard that NSF International is testing water filters against for filter certification. They introduce high levels of that contaminant into the water and then test the filter to see if it reduces that contaminant to the MCL of that impurity. If the filter claims to work for 500 gallons before changing it, they run all 500 gallons, testing periodically to be sure that contaminant is reduced to the MCL level continuously up till the last of the 500 gallons.

All this is done for your benefit so you can be sure that the filter you are buying is effectively reducing the contaminants they claim to be reducing.

A Useful Tool

NSF has a useful tool on their website for verifying whether or not a given filter is certified. This tool is entitled "Product and Service Listings" and can be found at http://www.nsf.org/Certified/dwtu/. It will tell you the number of the standard for which the filter is certified and exactly for which contaminants it is certified to reduce.

For a more complete explanation of water filter comparison and certification as well as other criteria to use in choosing a water filter, check the free report cited below.


About the Author
David G. Langford http://www.all-about-water-filters.com To get a free report entitled "A to Z Checklist, How to Choose a Water Filter?" go to http://www.atozwaterfilterguide.weebly.com

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Hiring a Google Adwords Certified Company

The Google Adwords Certification process is very thorough. ... Anyone can take the Google Adwords Certification exam – as long as they have a My Client ...

By: Mel Joelle

Making the decision to hire an outside consultant to help you with your pay per click management, campaigns and ad copy creation process can be one of the biggest decisions you make for the health of your company. If you have decided to hire a consultant, it is critical that you hire a Google Adwords Certified Consultant. This will ensure that your pay per click campaign will be setup accurately and effectively. We all know what a big impact a properly designed and implemented pay per click campaign can make.

The Google Adwords Certification process is very thorough. It ensures that the consultants that have the certification to assist you, as well as the knowledge of how to best utilize Google’s program for a pay per click campaign. One of the primary focuses of the certification process is keyword analysis. This makes sense because keywords are the backbone of any PPC campaign. Individuals interested in the certification have access to Google’s learning center. Once they are ready, they take a Google Authorized test.

Google is constantly changing the exam. These changes are based on changes to the current marketing climate on the Internet. New tools and methods of utilizing Google Adwords are also included in these frequent changes.

Many consultants have opted to take the certification exam to further their ability to assist customers with their PPC campaigns. The certification is an indication that company is professional and has the expertise needed to implement a successful campaign.

Anyone can take the Google Adwords Certification exam – as long as they have a My Client Center and have utilized it for 90 days. A fee of $50.00 is required. These requirements are not very strict, but that does not mean that everyone who claims to be Adwords Certified actually is. Ask to see some kind of authentication that your SEO company has actually participated in the Google Adwords Certification program.

If you are considering hiring a Google Adwords certified company, there are several things to look for.

1. Be sure to view their certificate – this is typically available online at their client center. Ask when their last certification was given. You may want to consider utilizing a different company if the certification is more than a year or two old.

2. Request letters of recommendation or contact information from previous clients. Whenever you hire a professional you should look into their history.

3. Ask for the web addresses of several sites they have worked for and, as silly as it sounds, proof that they did the work.

4. Completely read and review any contract before signing it. Be sure you understand all of the terms and conditions. It is a good idea to be leery of any company offering ‘guarantees’ as it is nearly impossible to guarantee results – there is likely a catch so be sure to read the fine print

Google Adwords is simply one of the best marketing choices, especially for pay per click management purposes. Consider hiring a certified consultant to assist you with your marketing and management needs. Contact us, we can help.


About the Author

Click here to read the rest of Google AdWords Certified Company. If you enjoyed this article, you also might like our other stories about Internet Marketing Company.
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CompTIA Security+ certification - expert professionals in the field of security and tech networking

CompTIA Security+ certification - expert professionals in the field of security and tech networking...

By: Exam Expert

The CompTIA Security+ certification designates knowledgeable professionals in the field of security, one of the fastest-growing fields in IT. Security threats are increasing in number and severity, and the gap between the need for security professionals and qualified IT personnel is the largest of any IT specialty, according to a 2008 CompTIA study. Even in a troubled economy, most businesses plan to maintain or increase their investment in security.

Although not a prerequisite, it is recommended that CompTIA Security+ candidates have at least two years of technical networking experience, with an emphasis on security. The CompTIA Network+ certification is also recommended.

For IT professionals requiring re-certification:
The newest version of the CompTIA Security+ certification exam was launched in late 2008. IT professionals who are encouraged or required by their employers to remain current on their certifications have two options:
1 They can take the new version of the exam, or they can take the CompTIA Security+ bridge exam, which covers the new objectives.
2 The test, exam code SY0-201, Only professionals who are currently CompTIA Security+ certified under 2002 exam objectives are eligible to become CompTIA Security+ 2008 certified by taking the bridge exam.

Where networking has made life easier, it also presented some challenges for IT professionals. In facing all these challenges, security is the most important. To address security challenges Comptia sy0-201 test specifically for professionals, the system's security. Every day is coming with the new developments in IT and a threat to network security. That is why more and more entrepreneurs are planning to highly qualified professionals with sy0-201 exam questions in their portfolio to rent their systems secure.

This increased demand for security experts has forced the professionals who opt for the CompTIA Security + 2008th Sy0-201-examination by the world makes and accredited professionals in the position of system security, network infrastructure and access control. If you want to advance your career or your career as a Network Security Engineer, CompTIA will initiate sy0-201 practice exams, is essentially for you. You can not step in your career, without that certification in your school profile. What a CompTIA sy0-201 exam paper will bring covers a broad spectrum of training in safety technology.

He waited for what? Get your hands on the latest developments in security technology by obtaining CompTIA sy0-201 exam details. When you talk about how you prepared for the test is concerned, sy0-201 exam questions for you there in your way. Our exclusive training package that fits all your needs for passing your certification exam. Our online 24 / 7 Live help us an edge to your life for your best. Everything is now on shaft. Visit CompTIA Security + 2008 directly from comfort of home. No need to spear time to go anywhere, for participating in class, do not need to study, just join us and certified.

About the Author
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Get your Phlebotomy Certification online

There is now another option that you can take in order to get Phlebotomy certification with the use of online schools. This is indeed advisable as you can ...

By: Phlebotomy
There is now another option that you can take in order to get Phlebotomy certification with the use of online schools. This is indeed advisable as you can save time and effort if you will take this option than to go to Phlebotomy school personally.

Phlebotomy is the study of extracting blood in the vein. This is one of the certificates that you can get in order to be ahead in your career. A phlebotomist is the one who is certified in getting sample blood to a person that is about to undergo blood transfusion.

The thing that you need to prepare if you are interested in online phlebotomy school is your high school diploma or GED. In order for you to be called phlebotomist you need to be acknowledged by a Phlebotomy school. The good thing is that you can now be accredited in the use of online school of phlebotomy.

There are lots of websites in the Internet where in you can find the schools of Phlebotomy. The Online phlebotomy certificate and diploma programs can be completed in as early as three months. But if you want to take the associate degrees in phlebotomy may take 18 months while the bachelor degrees will take longer time.

If you want to take some internship in the hospital while studying online phlebotomy this may take you a year. You may need to prepare certification in CPR if you are interested in internships.

Most of the phlebotomists can be found in medical offices, clinics, and even to some laboratories. They are giving services that deal with blood collection.

If you are interested it is better if you will look for the trusted online phlebotomy school online. You need to find the one that is proven and has a good reputation. If you are a disciplined person and you know that you can learn in online schools then try the use this online certification.

About the Author
The author owns and operates http://www.Phlebotomy-Certification.net and also writes about Phlebotomy Certification
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The Importance of Knowing About Diamond Certification

The much needed industry standard for any certification is provided by Gemological Institute of America (GIA) The international parameters set by the GIA is ...

By: Elizabeth Carrigy

Because diamonds are considered as investments, several organizations exist to grade and certify these commodities. These companies spread world-wide function independently but follow the international norms and standards in grading and certifying diamonds.

The much needed industry standard for any certification is provided by Gemological Institute of America (GIA) The international parameters set by the GIA is the minimum standard criteria worldwide The American Gemological Society (AGS) is also there which deals in the marking of grades to the colors of diamonds and gemstones during the process of certification of those diamonds and gemstones. They have color grading standards which are thought to be more exceptional than the GIA.

There are also the Accurate Gemological Labs. Accurate Gemological Laboratories and the EGL (European Gemological Laboratories) is its European counterpart. The AGL's comprehensive reports evaluate the diamond's 4 Cs; this is the organization's major role in diamond certification. Except for the furnishing of extra information of proportions of any diamond, the EGL toes the guidelines of AGL . The report is all-encompassing with the inclusion of unique features like angles of pavilion and crown.

International Gemological Institute (GMI) IGI The diamond certification compares to the Europeans. The angles and the crown of the diamond are also talked about by them. The main benefit is that these are less expensive than the GIA. Their primary points of focus are in small and mid-range diamond gem stones.

Discuss diamonds and Australia comes right behind it, and then after this certified diamonds. There is the IGL, which is said to be very accurate and specific. Every single one of the diamonds presented to be certified is subjected to a high-precision examination for purity, color, and other attributes; the diamond is then re-evaluated by another certifier, and the results are compared.

We also Hoge Raad voor Diamant or "High Diamond Council, as it is commonly called This world renowned Belgian company carries high quality diamond certifications. They provide the Certificate only if it conforms strictly to the stringent international specifications To prevent tainting a final report, the name of the diamond holder is never stated. We also Gubelin Labs located in Switzerland which began with the famous Dr. Gubelin Eduard. They are also a highly recognized company, in the diamond certification field, which appraises gemstones.

About the Author

Appealing Wedding Bands offers high quality and exquisite selection of gold and platinum wedding rings; Plain Wedding Bands, Mens Wedding Rings, His and Her Wedding Bands, Eternity Rings, Diamond Wedding Bands, Two Tone Wedding Rings, Diamond Cut Wedding Bands, Celtic Wedding Rings and Engagement Rings.

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Validate Your Proven Experience With MCAD Certification

By: Govindan


Software training helps you to grow professionally so that you can create a distinct mark in the industry. It enhances your skills and updates you with latest information about the computers and software industry. There are lots of certification courses introduced by Microsoft.


Microsoft Certified Application Developer (MCAD) certification not only helps you to gain recognition as a trained application developer but enhances your skills. It gives you an opportunity to connect with global community. In addition to all other benefits, you get to access some exclusive Microsoft resources which others cannot.

A research conducted in 2006 revealed that forty three percent of respondents reported that there was salary increase after Microsoft Certification. If you want to grow fast and match up with the entire world, learning these extra skills in necessary.

People who are into developing, deploying, testing and maintaining applications can apply for MCAD certification. Anybody who is working on database and network services can appear for this type of certification and enhance their skills. Software developers, programmers, software analysts can all choose to appear for this certification exam.

These days there are online training programs for the benefits of students. You can also find sample papers of previous few years. IT market is changing constantly and the need to have such certifications in your pocket is extremely necessary. It will only add more value and credentials to your resume which an employer looks upon.

There are three exams that you need to pass for MCAD certification. One exam is based on web application development or windows application development whereas the other one is related to web services and server components. The third one is an elective exam.

There are upgrade paths as well which takes you a level higher. You can appear for Microsoft Certified Technology Specialist certification. You can also upgrade to Microsoft Certified Professional Developer. Each of these certifications has their own meaning and position in the IT market.

IT professionals, who derive physical database designs, create physical database, configure and manage security, monitor and optimize databases etc can appear for MCDBA certification which means Microsoft Certified Database Administrator. Database analyst, database administrator and database developer can add this certification to their credentials.

Database administrator, developer, analyst using SQL Server 2005 or 2008 can choose to appear for MCTS certification. Attaining advanced skills demonstrates the customers and the employers that you are committed towards your work and further want to enhance it.

There are four exams to appear and earn MCDBA certification. One exam deals with Microsoft SQL Server Administration exam, the second deals with Microsoft Windows 2000 server or Windows server 2003 exam, the third exam is about SQL Server Design and the fourth one is elective exam.

You cannot complete the certification track if you have not passed all the exams. You will also need to pass the exams before they retire. However, the credential does not expire.

Software training courses help to change your life 360 degrees. Technology market saturates very soon and you need to learn new skills to sustain in this market. These courses give you an opportunity to improve your ability and get further promotions in your current job profile.

About the Author

Leading IT certification company offers wide range of Networking training, software training, IT security training and university affiliated distance learning courses in India.

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Present And Future Prospect of CCNAa Certified Professionals

by: Alinamichael

In this world of fast connected computing, almost every organization needs good and qualified networking professionals. There aren't many company to look beyond as there is Cisco, the biggest networking company in the world. It has its reputation in the field of networking and has been in the field of providing certification courses in networking for people aspiring to become networking professionals. Most of the certified networking professional in the world would have the CCNA certification.

It is the starting step into the field of networking. In the present scenario there is a high demand for networking professionals in various software companies of the world. Not only software companies but also the other organizations of the world require networking professionals. There is always a place to be filled in the organization in the networking field in various job portals. In the future, more and more companies and new organizations need to be connected to the big networks as well as with the internet and they would require a number of certified networking professionals to do their networking. One should also know a fact that among the professions in the software industry, the networking professionals are the people who are paid the most.

They get high remuneration for the job done by them and hence the prospects of becoming a networking professional are good now and also in the future. The certification that a networking professional would be required to have is the CCNA certification of Cisco and getting this certification isn't very easy as one has to understand the various things about networking and do the various networking problems to become very clear with the concepts of networking. There are a number of tutorials available both online and on the books to help a person to prepare for this exam and one can make full use of them to clear this exam.

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