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International Shipping

We do not offer international shipping to countries within the European Union

We can only ship non-hazardous products to Rest of World

Comparator Paper pH 4.0 - 7.0, 100 strips per pack

Comparator Paper pH 4.0 - 7.0, 100 strips per pack
Price: £30.10
Stock Availability:

Compare all Pack Sizes

Stock Availability
On Shelf - Approx. UK delivery date: Thursday the 10th April 2025*
In bulk stock - ships within 4 - 8 Days (Excluding weekends and public holidays)
4 - 6 Weeks Approx.
UK Shipping

We can only ship to Northern Ireland where a Royal Mail postal option has been chosen at checkout.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible

Comparator Paper: Johnsons Test Papers offer one of the most trusted and versatile comparator papers available. Suitable for use in laboratories, industrial applications, water treatment, and education, they provide a reliable method for comparing colours against a standard reference chart to determine chemical characteristics of a solution.

Convenient Form Factor: Comes in packs of 100 Strips. Larger packs are available with 1000 Strips

pH Range: With a pH range of 4.0 - 7.0, Johnson's test papers provide a practical solution for measuring the acidity of various liquids.

Our test papers are sourced and packaged in non-toxic, chemical-resistant materials to guarantee consistent quality and reliability for our customers.

Frequent Uses

Chemical Analysis:
Ideal for comparing colour changes in solutions to reference charts for quick and accurate assessments in laboratory or field settings.

Water Quality Testing:
Commonly used to evaluate water conditions such as hardness, chlorine levels, or other chemical parameters in drinking water, wastewater, or aquatic environments.

Education and Demonstrations:
A valuable teaching aid for visually demonstrating chemical reactions and changes in educational environments.

Industrial Monitoring:
Used to track chemical characteristics during manufacturing processes, including in food production, water treatment, and industrial cleaning.

Payment Methods

We can also accept a bank transfer (UK Only)

Latest Feedback

  • Rating:
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    Among the best customer service ever via Amazon.
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    Item exactly as described and of high purity. Well packed for delivery as well.
  • Rating:
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    Very helpful and courteous emails from seller, as I had misunderstood details of purchase. A refund was very promptly sent. Thank you very much for your understanding.
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    Prompt delivery no problems would recommend
Source Chemicals Ltd