This strip can be used on any drinking water but should be of particular interest to anyone using a well or groundwater who has concerns about bacterial contamination. These test paper do not come with a color chart but the presence and relative concentration of hydrogen sulfide is readily apparent. While normally specified with a 5ppm detection sensitivity, 1-3ppm appears to sufficient to slowly cause the white test paper to turn grey. As the concentration approaches the dangerous level of 400ppm, the change proceeds very rapidly..
Note: The number of strips per pack or vial is approximate.
100 strips per vial
For more inquiries,
Call Ms. Ann at (02) 775.69.05
Mobile No. 099.818.104.22.168
Tips for Online Transactions
- Avoid scams by acting locally or paying with PayPal, Bank Deposit, LBC, or Pera Padala without the item.
- Never pay with anonymous payment services
- Don't buy or sell outside of your country. Don't accept cheques
- This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"