Hanna Instruments

Scientific Equipment

Safety Data Sheets

SDS search & quick download

Free Delivery

Most of mainland GB for orders over £50. Other charges may apply - see more

Hanna Care

We take the long view, looking after existing customers as much as delighting new ones!

Certificates of Analysis

Download a copy of the certificate of analysis for your solution

HI-3840 Hardness test kits

HI-3840 Hardness test kits

HI-3840 Hardness test kits

HI-3840 Hardness test kits

Range: 0-150 mg/L (ppm)
Includes reagents
In Stock
£9.80 (exc. VAT) £11.76 (inc. VAT)

Hardness in water is mainly due to the presence of Calcium and Magnesium ions and each contributes to the amount of total hardness. Monitoring and controlling hardness is instrumental in order to prevent scaling and corrosion.

Titration method test kits.

Range (0-150 mg/L) Low range.

Range (40-500 mg/L) Medium range.

Range (400-3000 mg/L) High range.

HI-3840 Hardness test kits information

Hanna's extended description

Hardness Low Range Test Kit

The HI-3840 hardness, low range test kit determines total hardness in water via a titrimetric method.

Water hardness has traditionally been defined as the capacity of water to precipitate soap. The ionic species in the water causing the precipitation was later found to be primarily calcium and magnesium. In the present, therefore, water hardness is actually a quantitative measure of these ions in the water sample. It is also now known that certain other ion species, such as iron, zinc and manganese, contribute to the overall water hardness. The measure and subsequent control of water hardness is essential to prevent scaling and clogging in water pipes.

Order information

The HI-3840 test kit is supplied with the following:

  • 30 mL hardness LR reagent
  • 50 mL calibrated vessel

  • Specifications

    Specifications list


    Method   Titration
    Range   0-150 mg/L
    Smallest Increment   5 mg/L
    Chemical Method   EDTA
    Number of Tests   approx 50
    Weight   120 g

    Questions & Answers

    Got a question to ask? Use this form to submit your question.
    Question will be displayed after moderation.
    Name* Product Question*
    No questions yet?
    Don 't be shy, be the first to ask.