|Item Weight||1.6 ounces|
|Package Dimensions||3.6 x 3.5 x 0.6 inches|
|Item model number||717834209102DUPE|
|Item Package Quantity||1|
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3M LeadCheck Swabs, 8-Pack
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- Detects lead on most surfaces within 30 seconds
- EPA recognized
- Simple to use: just crush, shake and swab. Red Means Lead!
- Test confirmation card to verify results in every kit
- Swabs are non-toxic, odorless, disposable and non-staining
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Facts About Lead In The Home
Over 38 million homes were built with lead-based paint prior to the United States Consumer Product Safety Commission ban on lead use for residential purposes in 1977. Lead is most often transmitted via dust particles, which can be invisible to the human eye. Lead can affect children's brain and nervous system development, causing reduced IQ, learning disabilities, and behavioral issues. Projects that disturb painted surfaces can create dust and endanger your family unless the proper safety precautions are taken.
3M LeadCheck Swabs are EPA recognized for use on wood, metal, drywall, and plaster. This means only one test is needed to reliably determine that regulated lead-based paint is not present on most surfaces. When lead is detected, 3M LeadCheck Swabs turn red. Red means lead! These tests are inexpensive and easy to use and results are obtained in approximately 30 seconds. The odorless and disposable swabs are simple to use: just crush, shake, and swab. Each kit contains test confirmation cards to verify individual test results. In just seconds, you will know if lead-safe practices are required. Test for lead on painted surfaces such as drywall, plaster, wood, metal, steel structures, vinyl, and other plastics.
Minimize Your Risk
The DIYer should be aware of the major health issues resulting from lead exposure. Before starting your project, test for lead by using 3M LeadCheck Swabs. Next, minimize the inhalation of dust particles by using dust masks and respirators. This will safeguard your family from unsafe levels of lead accumulation. Finally, contain the dust to the work area, which is essential, along with a proper cleanup that will minimize airborne dust and keep your family healthy.
How Old Is Your Home?
If your home was built prior to the 1980's, it is vitally important to check for lead-based paint in your home. As apartments, townhouse, and houses continue to age, there is an increased chance that lead-based paint will become dust particles.
What's in the Box
8 swabs pack
3M(TM) LeadCheck(TM) Swabs are EPA recognized, non-toxic and provide a rapid, test for lead on most surfaces. When lead is detected, 3M(TM) LeadCheck(TM) Swabs turn red on contact. The vast majority of test situations results are obtained in less than 30 seconds. Simple to use: just crush, shake and swab. Red Means Lead(TM). Each kit contains test confirmation cards to verify individual test results. 3M(TM) LeadCheck(TM) Swabs provide instant lead-detection results for quick and accurate job pricing. In just seconds, you will know if lead-safe practices are required. Test for lead on surfaces such as: painted surfaces, steel structures, vinyl and other plastics.
Top customer reviews
We investigated this product after every test surface in our house turned pink (swab tips stayed yellow). 3M instructions and customer service did not agree on whether lead was indicated by red/pink on EITHER the swab or surface, or just on the swab, so we re-tested surfaces with the more expensive D-Lead test kit. D-Lead tests were negative for painted surfaces that had turned pink with the 3M swabs.
Google search "3M lead check false positives" and one of the first hits is this EPA report (http://www2.epa.gov/sites/production/files/documents/3M-leadcheck-report.pdf) which states that "the overall observed false positive rate for the technical operator [of a 3M LeadCheck swab] was 70% while that for the non-technical operator was 98%. Note that both operators yielded false positive test results for every test with white lead or yellow lead with concentrations ≤ 0.8mg/cm2" (pg 21 -- see data table on pg 22). The report explains that "under the RRP rule, a test kit must yield a demonstrated probability (with 95% confidence) of no more than 10% false positives at lead concentrations below 0.8 mg/cm2" and concludes that "the false positive rate would be larger than 10% for all lead levels below 0.8 mg/cm2" using 3M LeadCheck swabs and "those rates are not consistent with the RRP rule" (pg 29-30).
Another top hit is the EPA Lead Test Kit webpage (http://www2.epa.gov/lead/lead-test-kits), which states that "lead test kits recognized before September 1, 2010 must meet only the negative-response criterion" while "lead test kits recognized after September 1, 2010 must meet both the negative-response and positive-response criteria ... to date no test kit has met both of the performance criteria outlined in the RRP rule." The EPA states only that 3M LeadCheck swabs can "reliably determine that regulated lead-based paint is not present" -- they do do not meet EPA standards for reliably determining that lead IS present.
3M customer service offered a refund, but would not comment about rates of false positives, the EPA report, or data from testing done by the company itself.
The test confirmation card is effectively checking the test against known lead substances. I gather from some negative reviews that this card was not included in earlier versions of the product.
After using a swab and getting a negative result, you can continue to re-use the same swab on several more items. Once the swab turns red it is useless for any other tests.
I know that they are used extensively by a local occupational-therapy school that teaches woodworking as a job skill. . . which is where I learned of them. They cannot by law expose the students to lead, so they use these, then reject any project covered in lead paint.
So far, they have worked very well.
However, I would say that there is a bit of a trick to using them correctly? And I wonder about whether some of the false negatives here might be due to that, because it happened to me until I figured out I was the problem, not the tester whatsis.
First, you have to actually get the tested substance onto the end of the tester--and that may mean scraping a bit of it, as testers don't have solvents (?) and you must also be sure that the testing liquid is actually released to get where it has to go. I messed up a couple of times before I figured that one out. (Ergo 3 stars for requiring a learning curve.)