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| 1. Fill the water to be tested up to 'FILL LINE' and replace the cap. |
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| 2. Keep at room temperature (preferably 250 - 370C) for the specified time below |
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| Temperature Range Average |
Incubation Period |
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| 30 - 350 C |
24 Hours |
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| 25 - 300 C |
24 - 36 Hours |
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| 20 - 250 C |
36 - 48 Hours |
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| 15 - 200 C |
48 - 60 Hours |
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| 3. Observe for the change in colour of the medium. |
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4.
a) If the content turns black, water is not fit for drinking.
Refer to adjacent picture.
b) If the content turns into any color other than black, it indicates that
water is free of bacteriological contamination. |
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| 5. Add few drops of some disinfectant (i.e. dettol, phenyl etc.) and discard. |
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| A paper from WHO assessing the scientific validity of the H2S Strip test: Read More |
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If you have performed the H2S Strip test, click here to add the result of your H2S strip test to our database.
Click here |
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| Manufacturer's Details: |
| 1. Development Alternatives |
| DA manufactures H2S Vials/strip at its own Facility-TARA Environment Monitoring Facility,Delhi under the name of "TARA-Aqua Check". DA has been in this business for 10 years and has supplied in thousands to various customers in India and abroad. They have got the License from National Research Developement Corporation(NRDC), New Delhi for its commercialization. NRDC has made mandatory that suppliers/manufacturers of H2S strip kits/vials should obtain a licensing certificate from NRDC, then take necessary training from DRDE-Gwalior for its production/quality control, etc. |
| DA's address for contact: |
Development Alternatives,
B-32 TARA Crescent Qutab Instituonal Area,
New Delhi-110016,
Phone:011-26890380
|
| Production site: |
TARA-Environment Monitoring Facility,
TARA Nirman Kendra, Near NBCC Building,
M.G.Road, New Delhi-110030,
Phone: 011-26806172,26801521,26804482.
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| Cost of single vial: Rs.20+12.5% as VAT/CST+Rs.5 as Freight. Vials are sold in packs of 10. |
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2. Water Health Laboratories |
| Water Health Laboratories manufactures and markets these vials under contract with UNICEF. |
| The cost of one vial is Rs. 10/-. Orders must be made in batches of
atleast 10 vials, for which the charge is Rs 100/- + Shipping. The suggested payment is through DD with shipping cost payable on delivery. The following contact information can be used: |
| Manufacturer's Contact: |
Water Health Laboratories
4, Hydel Road, Industrial Area,
Roorkee - 247 667 INDIA
Tel: +91 (1332) 265320, 270053
Fax: +91 (1332) 274950
Cell: +91 94120 74490 (Dr. S.K.Sisodia)
Email: waterhealth@rediffmail.com |
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| Download H2S Strip Test Instruction Manual: Download |
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| What to do if your water is contaminated ? |
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You should take a sample of the water to a testing lab to confirm the results of the strip test.
You can try any of the following methods to manage a problem with contaminated water:
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