Ward's® Gunshot Residue Presumptive Test
Colorimetric test for trace evidence.
- Grades 9-12
- Estimated class/lab time required: 30 minutes
This simple, two-part presumptive test will help you quickly determine whether or not a surface has recently been exposed to a discharged firearm. Simply wipe down the surface in question, add the chemical reagents, and observe the results. A rapid color-change takes place to verify the presence of nitrates, the main component of gunpowder residue (GSR), while a different color change will verify the presence of heavy metals associated with GSR. Each kit contains complete instructions and enough materials to perform 30 tests.
- Description:WARD’S Gunshot Residue Presumptive Test Kit
- No. of lab groups:15
To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email [email protected] or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:
- • State issued document with your organization's Federal Tax ID Number
- • State issued document with your organization's Resale Tax ID Number
- • City or County issued Business License
- • State Department of Health Services License
- • Any other ID issued by the State that includes the business name & address
* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. Avantor will not lift restrictions for residential shipping addresses.