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Purity & Safety Assurance
Copper Bottle Purity & Safety Testing Standards
All Tamba-Tattwa™ copper water bottles are tested for purity and safety using recognised Indian and international standards. At Tamba-Tattwa™, purity is measured, verified, and transparently shared.
Copper Purity Test – BS EN 15079
To confirm material authenticity and copper content, our bottles are tested as per BS EN 15079, an international
standard for assessing copper purity.
This test ensures:
• Verification of high copper purity
• Controlled elemental composition
• Absence of harmful contaminants beyond permissible limits
Test Highlights:
• Copper content confirmed at 99.5%
• Analysis conducted using XRF (X-Ray Fluorescence)
• Trace elements within acceptable limits
This confirms the material used is genuine high-purity copper suitable for drinking water storage.
Heavy Metal Leaching Test – IS 3025
Purity alone is not enough. Safety during actual use is equally important.
To evaluate this, the copper bottle is filled with distilled water and stored for 24 hours at room temperature. The water is
then analysed as per IS 3025, the Indian Standard method for testing water quality parameters.
This test checks:
• Whether metals leach into stored water
• Whether leaching remains within permissible limits
Test Results:
• Lead, Cadmium & Nickel: Not Detected
• Copper release: Below Detectable Limit (BDL)
• All values within permissible limits
These results confirm that the bottle is safe for storing drinking water under normal usage conditions
Transparency You Can Trust
We believe informed customers make confident choices. That is why we openly share:
• Testing standards followed
• Nature of tests conducted
• Laboratory conclusions
This reflects our commitment to honesty, responsibility, and transparency
What This Means for You
When you choose Tamba-Tattwa™, you are choosing:
• 99.5% pure copper water bottles verified as per BS EN 15079
• Products tested for safe use as per IS 3025
• Bottles without artificial inner coatings
• A balance of traditional understanding and modern accountability
Testing is conducted on submitted samples under controlled laboratory conditions. Actual performance may vary
depending on water quality, usage, and maintenance. Information provided is for transparency and does not constitute
medical advice.