Archive for the ‘Drywall Testing Application’ Category

Existing Technology Being Used in New Ways

Our friends at Indoor Environment Connections (IEC) have offered several articles on the current concerns surrounding drywall.  They recently had a Q&A with a company that uses X-Ray Fluorescence as part of their drywall testing procedures. 

The article begins…”Handheld XRF analyzers have been in use for years in many fields for the purpose of scrap sorting, art/archaeometry, research and training, mining and exploration as well as detection of restricted materials.  One of the newest uses is in the detection of marker elements in gypsum wallboard to assist in determining the presence of Chinese reactive drywall that is plaguing many homes throughout the United States…”
         The article continues with Q&A about the technology and application
         The Full Article can be reviewed through this link on Page 25

A few points of interest that were noted in the answers:
     “XRF instrument is only one of several tools used to evaluate…”
     “…XRF is being introduced in conjunction with other testing in legal cases around the country.”

Check out the article for more thoughts on X-ray Fluorescence in drywall testing and contact IEC to receive their magazine.  Feel free to contact Quickshot XRF to speak with an Application Specialist on this.

Defective Drywall Update – Strontium Testing

The QSX Application Specialists have been doing some work since the first XRF-Blog post about the potential use of x-ray fluorescence in detecting defective drywall (blog post linked).  We have been working with a few organizations involved in home testing and utilized the Quickshot XRF handheld system to test a few pieces of both acceptable and defective drywall.

Is this defective drywall?

Is this defective drywall?

The initial results were very promising.  In only 5 seconds our analyzer can offer information on Strontium (Sr) content in a piece of drywall with good accuracy.  Our Application Specialists have found its best to run tests at 5 second measurement times and, if those results fall within a specified parts-per-million (ppm) range then do a 20 second test for increased accuracy.

Testing for Strontium levels in drywall with Handheld XRF Analyzers has been reviewed by the CPSC and proven as an effective method of detecting defective drywall.  If levels are under a specified amount then the piece can be considered acceptable.  If, however, the ppm levels exceed that amount then further testing should be performed. 

X-ray fluorescence is popular for a variety of applications because it is a nondestructive test method.  For this reason it is gaining interest for the drywall testing – no need to destroy something that it acceptable.

Contact Quickshot XRF (here) to discuss this new application  and check back as updates are posted.

Chinese Drywall Creates a New Application for Handheld XRF Analyzers

You may have already read an article or watched a report on the negative effects of Chinese drywall.  These new reports show that defective drywall creates a variety of issues, including corrision of metals within the walls and possible health risks.

One method of determining if drywall is defective (problematic) or acceptable is to test for levels of Strontium (Sr); as defective drywall has 2-3 times the levels of Sr present.  A recent study (lead by the CPSC) has proven that x-ray fluorescence is an effective method of determining Sr content.

One article (click here for full article) about the defective drywall problems and research into them notes that an outside laboratory “…found that by using handheld x-ray fluorescence (XRF)…they were able to detect markers that could identify Chinese-made drywall at a sheet-by-sheet level.” Those ‘markers’ are detecting Sr in parts-per-million (ppm).

Quickshot XRF is looking into this new application and how our technology can be beneficial in testing drywall.  We will be offering new software packages and rental options to meet the testing need, so check www.quickshotxrf.com often for details or contact QSX Instruments to discuss.