Gunshot Residue Presumptive Test Kit (Product Code: SLE/CH/145) is a two-part chemical test kit used to check whether a surface may have been exposed to a discharged firearm, in forensic science and chemistry teaching labs. A rapid colour change indicates nitrates and lead, and each kit contains instructions and enough materials for 30 tests. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, alongside other forensic teaching materials for institutions in India and international markets.
| Parameter | Detail |
|---|---|
| Tests per kit | Enough materials for 30 tests |
| Test format | Two-part presumptive test |
| Substances indicated | Nitrates and lead |
| Result | Rapid colour change |
| Purpose | Checking whether a surface has been exposed to a discharged firearm |
| Included | Instructions |
| Shelf life | Depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted |
| Product code | SLE/CH/145 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
In a teaching lab, it shows how a presumptive test works in practice. Students follow the instructions, run both parts of the test on surfaces the teacher provides, and record whether the colour change appears for nitrates, for lead, or for both. The two-part design is a useful talking point: a single positive could come from an everyday source, since nitrates are also found in fertilisers, so finding both substances gives a stronger indication than either result alone.
With 30 tests per kit, plan the lesson so each group runs a known negative, such as a clean surface, next to its test sample; this teaches students to trust a result only when the control behaves as expected. Gloves stop hands contaminating the test area, and eye protection should be worn while reagents are in use. Colleges that rely on a chemistry consumables supplier in India often order this kit with blood and drug screening activities to build a complete presumptive-testing module.
Jain Scientific Equipments Private Limited, trading as ScienceLab from Ambala, Haryana, India, supplies this test kit as part of its forensic and chemistry teaching range. Schools, colleges and training institutes can combine it with other forensic activity kits, gloves and goggles in a single enquiry. Company background is available on our company profile.
These products sit in the same forensic screening workflow, either as further presumptive tests or as protection while testing:
See more forensic and chemistry kits in our Chemistry Lab Equipment category.
How many tests does one kit provide?
Each Gunshot Residue Presumptive Test Kit contains instructions and enough materials for 30 tests, so a class can run each sample alongside a clean-surface control and still have tests left for repeats.
What does the Gunshot Residue Presumptive Test Kit detect?
The Gunshot Residue Presumptive Test Kit indicates nitrates and lead, two substances associated with a discharged firearm, through a rapid colour change in two separate parts of the test.
Does a positive result prove a firearm was discharged?
No. The Gunshot Residue Presumptive Test Kit is a screening test, so a positive result is only an indication. Nitrates and lead can come from other sources, and firm conclusions need confirmatory laboratory analysis.
Can the kit be used for real casework?
The Gunshot Residue Presumptive Test Kit is offered as a presumptive screening test for teaching and training. Evidence in real investigations must be examined by a forensic laboratory using confirmatory methods.
Is it suitable for school students?
The Gunshot Residue Presumptive Test Kit can be used in supervised chemistry and forensic science lessons. Teachers should read the instructions and prepare a risk assessment beforehand, with gloves and eye protection for every student.
What is the shelf life of the kit?
The shelf life of the Gunshot Residue Presumptive Test Kit depends on the chemicals, their grade and storage conditions; ask us for the expiry date of the batch you are quoted before ordering stock for later terms.
Who supplies the Gunshot Residue Presumptive Test Kit?
Jain Scientific Equipments Private Limited (ScienceLab), Ambala, Haryana, India, supplies the Gunshot Residue Presumptive Test Kit to colleges, schools and training institutes in India and international markets; send product code SLE/CH/145, quantity and delivery address.
To price the Gunshot Residue Presumptive Test Kit, get in touch through the contact page or add it to the enquiry cart with the other forensic kits for your course.
Last updated: 24 September 2026