---
title: "How do I take the sample for the Express Inhibitor Test?"
description: "To take the sample, simply dip the test strip into the system water for 1 second, remove it, and shake off any excess water."
url: https://help.fernox.app/en/articles/76-how-do-i-take-the-sample-for-the-express-inhibitor-test
collection: "Testing Samples"
updated: 2026-10-05
language: en
alternates: [es, de, nl, nl-be, fr, fr-be, cs, pl, sk, sv, ro, tr]
---

# How do I take the sample for the Express Inhibitor Test?

To take the sample, simply dip the test strip into the system water for 1 second, remove it, and shake off any excess water.

[

Submitting an Express Inhibitor Test

The Express Inhibitor Test provides a rapid on-site analysis of the concentration of all Fernox Protectors, and other molybdate based inhibitors, in central heating system water. After testing a PDF certificate will be generated automatically and sent to customers and chosen contacts. All the submissions will be stored in your account, so you can access them whenever you want.

](https://help.fernox.app/en/articles/71-submitting-an-express-inhibitor-test.md)