Yellow Square litmus (indicator) paper contains 80 strips of 5 × 0.5 cm for measuring pH across 1–14 with 1 pH resolution. Dip the indicator zone into the solution for 1–2 seconds and match the colour to the chart on the pack right away.
Specifications
| Parameter | Value |
|---|---|
| pH range | 1–14 pH |
| Strips per pack | 80 pcs |
| Strip size | 5 × 0.5 cm |
| Resolution | 1 pH |
| Type | portable |
| Immersion time | 1–2 seconds |
| Reading | colour chart on the pack |
What you get
- The whole acidity scale — a pH 1–14 range.
- No equipment needed — the comparison chart is printed on the pack.
- Instant reading — a 1–2 second dip, then match the colour.
- Plenty of tests — 80 strips per pack.
- Handy strip size — 5 × 0.5 cm fits into small containers.
- Portable — a compact pack for the lab, garden or farm.
Who it is for
Chemistry and biology lab staff, aquarium keepers, farmers and gardeners, food and cosmetics technicians, and anyone who wants a quick acidity check of drinking water, soil, food, cosmetics or solutions.
Who it is not for
Anyone needing tenths of a pH unit, since the resolution is 1 pH, and people with colour vision deficiency, because the result is read by comparing shades. Strongly coloured liquids can also make the chart harder to read.
Uses and compatibility
Chemical and biological laboratories, aquariums, the food and cosmetics industries, farming and gardening, drinking water quality control, and testing water, soil, food, cosmetics and solutions. Method: dip the indicator zone into the solution and compare the colour with the chart on the pack immediately.
What's in the box
80 indicator strips in a pack with a colour chart.
Questions and answers
How do I run a test?
Dip the indicator zone into the solution for 1–2 seconds and compare the colour with the chart on the pack straight away.
How precise is the result?
Resolution is 1 pH, so the strips show whole units across the 1–14 range.
Can I test soil?
Yes, soil testing is among the listed uses. The strip is dipped into a solution, so mix the soil with water first and test the liquid.
How many strips are in the pack?
80 strips, each 5 × 0.5 cm.
Why read the colour immediately?
That is how the method is specified: compare the colour right after dipping, while the strip is still wet.
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