pH Test Strips
pH-Fix
pH-Fix – Unmatched pH test strips
pH-determination quick, easy, safe
With pH-Fix test strips, you can test the pH value quickly and easily directly at the point of interest. The strips are ready to use at any time and don’t need any calibration, set-up or maintenance. Therefore, pH determination with pH-Fix test strips is very easy, regardless of your experience or chemical background.
Safe analysis by long plastic handle
The long plastic handle safely protects you from coming into contact with the sample. Thus, testing toxic, dangerous or aggressive substances is safely possible.
Several test pads for exact results
pH-Fix indicator test strips feature up to 4 different indicator pads that cover the whole pH range from 0–14. You can chose from a total of 14 different measuring ranges to find the ideal strip for your application. The brilliant color scale is optimally matched and aligned to the test pads on the strips, resulting in quick, easy and safe pH determination.
No bleeding due to color bounded indicator dyes
In contrast to common indicator papers, the indicator dyes in pH-Fix test strips are chemically bound to the test pads. This patented technology safely prevents bleeding of dyes into the sample, even in highly alkaline solutions. Your sample is not contaminated by indicator dyes. Consequently, you can use the solution for further analysis.
The special non-bleeding technology provides additional benefits for you:
• Even in weakly buffered solutions, a safe and reliable pH determination becomes possible,
as the strips can be immersed for a long time until the final reaction color has developed
• The colors of the individual test pads don’t bleed and mix, which assures exact comparison
to the color scale
• Your sample is not contaminated by indicator dyes
Long Plastic Handle
Brilliant Color Scale
No Bleeding
Ordering Information
| Test | Gradation | Model |
| Classic flat box with 100 test strips 6 x 85 mm | ||
| pH-Fix 0 – 14 | 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 | 92110 |
| pH-Fix 0.0 – 6.0 | 0 · 0.5 · 1.0 · 1.5 · 2.0 · 2.5 · 3.0 · 3.5 · 4.0 · 4.5 · 5.0 · 5.5 · 6.0 | 92115 |
pH-Fix 2.0 – 9.0  2) |
2.0 · 2.5 · 3.0 · 3.5 · 4.0 · 4.5 · 5.0 · 5.5 · 6.0 · 6.5 · 7.0 · 7.5 · 8.0 · 8.5 · 9.0 | 92118 |
| pH-Fix 4.5 – 10.0 1) |
4.5 · 5.0 · 5.5 · 6.0 · 6.5 · 7.0 · 7.5 · 8.0 · 8.5 · 9.0 · 9.5 · 10.0 | 92120 |
| pH-Fix 6.0 – 10.0 | 6.0 · 6.4 · 6.7 · 7.0 · 7.3 · 7.6 · 7.9 · 8.2 · 8.4 · 8.6 · 8.8 · 9.1 · 9.5 · 10.0 | 92122 |
| pH-Fix 7.0 – 14.0 | 7.0 · 7.5 · 8.0 · 8.5 · 9.0 · 9.5 · 10.0 · 10.5 · 11.0 · 11.5 · 12.0 · 12.5 · 13.0 · 13.5 · 14.0 | 92125 |
| pH-Fix 0.3 – 2.3 | 0.3 · 0.7 · 1.0 · 1.3 · 1.6 · 1.9 · 2.3 | 92180 |
| pH-Fix 1.7 – 3.8 | 1.7 · 2.0 · 2.3 · 2.6 · 2.9 · 3.2 · 3.5 · 3.8 | 92190 |
| pH-Fix 3.1 – 8.3 3) |
3.1 · 3.5 · 3.9 · 4.3 · 4.7 · 5.1 · 5.5 · 5.9 · 6.3 · 6.7 · 7.1 · 7.5 · 7.9 · 8.3 | 92135 |
| pH-Fix 3.6 – 6.1 4) 5) |
3.6 · 4.1 · 4.4 · 4.7 · 5.0 · 5.3 · 5.6 · 6.1 | 92130 |
| pH-Fix 4.0 – 7.0 4) |
4.0 · 4.4 · 4.7 · 5.0 · 5.3 · 5.5 · 5.8 · 6.1 · 6.5 · 7.0 | 92137 |
| pH-Fix 5.1 – 7.2 | 5.1 · 5.4 · 5.7 · 6.0 · 6.3 · 6.6 · 6.9 · 7.2 | 92140 |
| pH-Fix 6.0 – 7.7 | 6.0 · 6.4 · 6.7 · 7.0 · 7.3 · 7.7 | 92150 |
| pH-Fix 7.5 – 9.5 | 7.5 · 7.9 · 8.2 · 8.4 · 8.6 · 8.8 · 9.1 · 9.5 | 92160 |
| pH-Fix 7.9 – 9.8 | 7.9 · 8.3 · 8.6 · 8.9 · 9.1 · 9.4 · 9.8 | 92170 |
| PlopTop tube with 100 test strips 6 x 85 mm | ||
| pH-Fix 0 – 14 PT | 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 | 92111 |
| pH-Fix 3.6 – 6.1 PT 4) 5) |
3.6 · 4.1 · 4.4 · 4.7 · 5.0 · 5.3 · 5.6 · 6.1 | 92131 |
| pH-Fix 4.5 – 10.0 PT 2) |
4.5 · 5.0 · 5.5 · 6.0 · 6.5 · 7.0 · 7.5 · 8.0 · 8.5 · 9.0 · 9.5 · 10.0 | 92121 |
| : Authorised for pH determination of 1) urine 2) gastric juice 3) saliva 4) vaginal secretion after IVD directive 98/79/EG 5) rinsing solution after disinfection of dialyzers according to the directive for medical products 93/42/EWG |
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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.
pH-Fix products according to the IVD directive 98/79/EG:
pH-Fix 4.5–10.0
- for pH determination of urine, as well suitable for self-testing
pH-Fix 4.5–10.0 PT and pH-Fix 2.0–9.0
- for pH determination of gastric juice
pH-Fix 3.1–8.3
- for pH determination of saliva
pH-Fix 3.6–6.1, pH-Fix 3.6–6.1 PT and pH-Fix 4.0–7.0
- for pH determination of vaginal secretion
pH-Fix products according to the directive for medical products 93/42/EWG:
pH-Fix 3.6–6.1 und pH-Fix 3.6–6.1 PT
- for pH determination of rinsing solution after the disinfection of dialyzers