DUOTEST
Double Zone pH Papers
These indicator papers show two different colors for each pH-value at intervals of 0.3 - 1 pH-unit. This allows more accurate reading and good estimation of intermediate values. The dispensers are rolls of 5 m length with a color chart. The refills are boxes of 3 rolls with no color chart. |
DUOTEST® pH Papers at a Glance |
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| pH Range | pH Gradation | REF # | Order |
| pH Range: pH 1-12 | pH Gradation: 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 | REF #: 90301 | |
| pH Range: pH 1.0-4.3 | pH Gradation: 1 ·1.3 · 1.6 · 1.9 · 2.2 · 2.5 · 2.8 · 3.1 · 3.4 · 3.7 · 4.0 · 4.3 | REF #: 90302 | |
| pH Range: pH 3.5-6.8 | pH Gradation: 3.5 · 3.8 · 4.1 · 4.4 · 4.7 · 5.0 · 5.3 · 5.6 · 5.9 · 6.2 · 6.5 · 6.8 | REF #: 90303 | |
| pH Range: pH 5.0-8.0 | pH Gradation: 5.0 · 5.3 · 5.6 · 5.9 · 6.2 · 6.5 ·6.8 · 7.1 · 7.4 · 7.7· 8.0 | REF #: 90304 | |
| pH Range: pH 7.0-10.0 | pH Gradation: 7.0 · 7.3 · 7.6 · 7.9 · 8.2 · 8.5 · 8.8 · 9.1 · 9.4 · 9.7 · 10.0 | REF #: 90305 | |
| pH Range: pH 9.5-14.0 | pH Gradation: 9.5 · 10.0 · 10.5 · 11.0 · 11.5 · 12.0 · 12.5 · 13.0 ·13.5 · 14.0 | REF #: 90306 | |
Refills (box of 3 rolls) available - Please inquire for more information.