
Lovibond pH Test Strips 7.5-9.5
COLOUR-FIXED, NON-BLEEDING
In contrast to conventional indicator papers, the indicator dyes of pH-Fix sticks are substantively bound to the cellulose fibres (DE-PS 24 36 257). As a result of the possibility of the colour bleeding, even in strongly basic solutions, is avoided.
Measurement of pH value is possible even in unbuffered or very weakly buffered solutions since the sticks can be left in the solution until the final colour change is completed. CE marked versions available.
Range: 7.5 - 9.5
100 Test Strips
CE-mark for medical applications
Some pH-Fix test strips are tested and approved for medical applications and carry a CE-mark for in-vitro-diagnostics 98/79/EG or medical products 93/42/EWG. They meet the special demands of health care professionals and ensure safe results for medical pH-testing.
ISO 13485 certified
As a medical device manufacturer, MACHEREY-NAGEL is certified according to the medical device directive ISO 13485. We are among the few manufacturers that can offer pH-tests with CE-mark for professional use as well as for patient self testing.
Easy determination of body acidity
The urine pH-value generally reflects the personal diet but can also be influenced by a large variety of medications available from different manufacturers.
Checking pH of gastric juice
Aspirate obtained after placing a nasogastric tube must be acidic. The pH is checked to ensure the correct placement of the nasogastric tube prior to the administration of feed or medication.
pH-control during pregnancy
A change in vaginal pH-value is an indicator for bacterial infection. During pregnancy, such infection may untreated lead to premature birth.
Quick-check of dialyzer reuse
Acid containing reagents are used for the disinfection of dialyzers. pH-Fix 3.6€“6.1 is an easy and reliable tool to ensure, that the cleaning agent is completely rinsed out prior to the next use.
Sku:BI-K12201

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.