GhostWipes for Lead/Be Testing
This revolutionary product eases sample preparation and analysis of surface lead or surface dust. The GhostWipe is a sturdy wiping material moistened with DI water that holds together even on the roughest wiping surfaces. In the lab, the GhostWipe readily and completely dissolves during the digestion process. This feature provides complete dispersion of analytes and uniform recoveries. There is no messy fibrous material to clog the sample uptake capillary or nebulizer. GhostWipes meet all ASTM Designation E1792 specifications for sampling materials for lead in surface dust. In addition, Beryllium by ASTM D7707 has been approved. Wipes are 15cm x 15cm for Lead Testing and 2 inches by 2.75 inches (5cm x 7cm) for Beryllium. All are supplied in individual sealed packets.
FAQ Sheet on GhostWipes here
MSDS- not required by DOT
CLICK HERE for a free sample pack of SC4250BE Small GhostWipes for Beryllium
CLICK HERE for a free sample pack of SC4250 Large GhostWipes for Lead and Beryllium
Question/Answer
Can you use ghost wipes for mercury?
While the mechanism of the Ghost Wipe is suitable for sampling many different surface contaminants, the Ghost Wipes were developed specifically for the sampling of lead and beryllium. We only certify the background levels of these two metals for each lot. To determine the suitability of the Ghost Wipe for an analyte other than the two certified you would need to conduct your own testing per lot for background levels.
What digestion procedure was used in your lab?
We used a method following HUD (Housing and Urban Development) guidelines for Lead in Dust Wipes Appendix A-5.0 which references NIOSH 7082. 10 mL of DI water is added to the container with the wipe. Then 2 mL each of hydrochloric and nitric acid are added. The sample is digested at 95 C for 45 minutes. After digestion and cooling, the sample is brought up to 50 mL with DI water. It is now ready for analysis.
Can your Ghost Wipe sample be for mercury?
We do not certify the Ghost Wipes for any metals other than Lead and Beryllium. In order to determine the appropriateness for any other metal, you would need to do your own validation study. If you would like we can send you a sample pack of the Ghost Wipes that you can test for mercury levels as blanks. This will give you an idea of if the background amounts are below your needed detection limits. You would need to do a similar study for each new lot of wipes that you receive. If you would like the sample pack, please call in to any of our technical help lines or sales lines for assistance.
are the checmicals on the wipe safe on human skin ? Can you use them on face and hands as a sanitizer ?
The Ghost Wipes are pre-moistened with deionized water which is certainly safe for contact on human skin. There are no other chemicals in the solution.
Cost of 500 x SC475 vessels?
Please contact sales@envexp.com for all pricing inquiries.
can I order the SC475 w/o the screw caps?
Our 50mL digestion vessels, cat# SC475, can be ordered without the caps. The catalog number is SC474 and pricing is based on volume as follows: 1-2 $100, 3-5 $97, 6-9 $92, 10+ $87.
Do these wipes come dry or wet?
The wipes are wetted with DI water and each wipe is contained in a foil pack
Do you have a lead wipe standard like SC4252 but in a 100ml rigid wall container?
This is something we could do for you. Please contact me at 800-343-5319 or joeb@envexp.com.\r\nJoe Boyd