Learn About Chlorine

Follow the guidelines in this poster to store and transport chlorine products safely. This poster is ideal for printing and placing in any location where chlorine products are handled and stored.

Follow this guide to prepare a 1% chlorine solution that can be used for the Modified Horrock's Test and disinfection of the water supply.

Use this calculator to determine the amount of chlorine product needed to prepare a 1% chlorine solution and the amount of the 1% solution required to to disinfect hand-dug wells and boreholes.

Use this calculator to determine the amount of chlorine to prepare a 1% chlorine solution and the amount of the 1% solution required to disinfect a batch of drinking water.

This guide provides instructions for conducting the Modified Horrocks Test. This test is used to determine the effective chlorine dose for batch chlorination of drinking water.

Follow the guidelines in this poster to handle and use chlorine products safely. This poster is ideal for printing and placing in any location where chlorine products are handled and stored.

Turbidity, pH, and temperature can all impact how fast and how well chlorine products can disinfect drinking water. Use this guide to determine how these parameters will affect your chlorine dosage and contact time.

This guide provides instructions for conducting the Modified Horrocks Test. This test is used to determine the effective chlorine dose for batch chlorination of drinking water.

This product sheet has a product description, distributor information, availability, cost, storage, and maintenance information about the Hach Chlorine Colour Comparator.

This case study describes PSI's implementation of Chlorine in Myanmar.

This fact sheet describes the chemical chlorine and its use in water, health effects, WHO guidelines and treatment options.

This case study describes Aman Titra's implementation of Chlorine in Indonesia.

In this optional lesson, participants describe how chlorine works to disinfect water. They compare different chlorine products, and they calculate appropriate doses for different scenarios. The lesson includes a presentation, pair work, calculations, and a role play.

This fact sheet describes disinfection of drinking water using chlorine.

This document contains instructions and safety measures to prepare chlorine solutions with Calcium Hypochlorite (powder or granular chlorine) for surface and hand disinfection. There are other documents including one on how to use Sodium Hypochlorite (bleach) as well as a Calculator (excel sheet) for different product concentrations. This was prepared to respond to the COVID-19 pandemic.

This case study describes DSI's implementation of chlorine in an emergency setting in Haiti.

This lesson plan contains instructions to facilitate a session where participants will learn how to safely prepare chlorine solutions for surfaces and hand disinfection. This was prepared in response to the COVID-19 pandemic.

This case study describes ENPHO's implementation of Chlorine in Nepal.

This spreadsheet is a calculator to prepare chlorine solutions using different product concentrations with Sodium Hypochlorite (bleach) or Calcium Hypochlorite (powder or granular chlorine) for surface and hand disinfection. There are other documents including one on how to use Sodium Hypochlorite (bleach) or Calcium Hypochlorite (powder or granular chlorine). This document was prepared in response to the COVID-19 pandemic.

This document contains instructions and safety measures to prepare chlorine solutions with Sodium Hypochlorite (bleach) for surface and hand disinfection. There are other documents including one on how to use Calcium Hypochlorite (powder or granular chlorine) as well as a Calculator (excel sheet) for different product concentrations. This was prepared to respond to the COVID-19 pandemic.

This presentation is for use with “Lesson Plan: Chlorine Dosing” in the Household Water Treatment and Safe Storage (HWTS) Trainer Manual

This case study describes DSI's implementation of chlorine in an emergency setting in Haiti.

Using chlorine is a good way to disinfect your water.

This fact sheet describes disinfection of drinking water using NaDCC tablets.

This case study describes ENPHO and EcoConcern's implementation of Piyush chlorine solution in Nepal.

In this lesson, participants study how to use chlorine to treat their drinking water. This lesson will also focus on how a Community WASH Promoter can verify that a household is using chlorine correctly, consistently, and continually.

This technical brief describes different types of chlorine products available for household water disinfection, and how chlorine inactivates microorganisms in water. It provides guidelines for chlorine use, including safety considerations and methods for calculating appropriate doses.

This guide provides instructions on the correct use of a pooltester kit to measure pH, free residual chlorine (FRC) and total chlorine (TC).

The focus of this lesson is to explore the increased need for household water treatment in emergencies. Participants will practice the correct treatment of water using chlorine, and discuss how to teach people to treat and store their own water in emergency situations.

The focus of this lesson is to differentiate between clean water and safe water. Also, this lesson focuses on the point of use that is effective at school level including the demonstration of use of chlorine.

The Business Model Canvas is a one page business plan that clearly sets out the nine key elements you need to consider in planning your business. The Business Model Canvas was created in 2010 by Osterwalder and Pigneur. This canvas describes Deep Springs International/Gadyen Dlo market-based approach to deliver a liquid chlorine solution (Gadyen Dlo) to consumers in Haiti.

This product sheet has a product description, distributor information, availability, cost, storage, and maintenance information about the Hach DR 900 Colorimeter.

This guide provides instructions on the correct use of a pooltester kit to measure pH, free residual chlorine (FRC) and total chlorine (TC).

Water temperature affects the rate of the chemical reactions involved in chlorination. Use this guide to determine how to measure temperature and how this will affect your chlorine disinfection contact time.