Our NANOCOLOR tube tests for the determination of COD, ammonia, nitrate and total nitrogen are conform to ISO standards.
These standards were specifically developed for determining the water quality with small-scale sealed tubes.
In particular, these standards are:
1) ISO ISO 15705:2002: Water quality — Determination of the chemical oxygen demand index (ST-COD) — Small-scale sealed tube method
This standard method specifies the determination of COD in any aqueous sampes, including all sewage and waste waters.
2) ISO 23695:2023-02: Water quality — Determination of ammonium nitrogen in water — Small-scale sealed tube method
This standard method specifies the determination of ammonium in drinking water, groundwater, surface water, wastewater, bathing water and mineral water with measuring ranges from 0.01–1800 mg/L NH₄-N.
3) ISO 23696-1:2023-02: Water quality — Determination of nitrate in water using small-scale sealed tubes — Part 1: Dimethylphenol colour reaction
This standard method specifies the determination of nitrate in natural water, drinking water and wastewater with measuring ranges from 0.10–225 mg/L NO₃-N.
4) ISO 23697-1:2023-02: Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes — Part 1: Dimethylphenol colour reaction
This standard method specifies the determination of total bound nitrogen in groundwater, surface water, and wastewater with measuring ranges from 0.5–220 mg/L N
These standards provide clear guidelines and procedures for accurately measuring the chemical oxygen demand and various nitrogen parameters in water samples. They are of great importance to environmental experts, laboratories, and companies involved in water monitoring. By adhering to these standards, our customers can be sure that our NANOCOLOR test kits are precise, reliable, and comparable.
