Calcium and magnesium salts dissolved in water cause hardness which can lead to scale. A standard solution of chelant is used to titrate the hardness in the sample. The indicator changes from red to blue at the titration end point.

EndPoint ID test kits are packaged in a durable plastic case and include all reagents, equipment and instruction card to complete approximately 60-75 tests. Color coded reagent caps match the color bar on the instruction card for easy identification when running multiple tests and our photographic, step-by-step instructions keep testing simple and help users easily identify color changes.

Kit TK3055-Z contains 1 each of the following items:

• ED2073-B    Hardness Titrant Low, 60 mL
• ED2070-B    Hardness Titrant High, 60 mL
• HA7405-A    Hardness Buffer Solution, 30 mL
• HA7430-A    Hardness Indicator Liquid, 30 mL
• VL-1005-V    Vial, 10-50 mL

Kit TK3051-Z contains 1 each of the following:

• ED2073-B    Hardness Titrant Low, 60 mL
• ED2070-B    Hardness Titrant High, 60 mL
• HA7405-A    Hardness Buffer Solution, 30 mL
• HA7475-H    Hardness Indicator Powder, 10 g
• VL-1005-V    Vial, 10-50 mL

Kit TK3058-Z contains 1 each of the following:

• ED2064-B    Hardness Titrant Trace, 60 mL
• HA7405-A    Hardness Buffer Solution, 30 mL
• HA7475-H    Hardness Indicator Powder, 10 g
• VL-1005-V    Vial, 10-50 mL

Kit TK3052-Z contains 1 each of the following:

• ED2070-B    Hardness Titrant High, 60 mL
• CA1119-A    Calcium Hardness Buffer, 30 mL
• CA1110-H    Calcium Hardness Indicator Powder, 10 g
• VL-1005-V    Vial, 10-50 mL 

Drop Test 25 mL. Other test kits for total hardness are available upon request.

Training videos are available by clicking here:  http://www.aquaphoenixsci.com/resources/videos.html

SDSs are available here:  https://www.aquaphoenixsci.com/resources/safety-data-sheet-sds/

Test procedures are available here:  http://www.aquaphoenixsci.com/resources/procedures.html