Litmus paper universal pH 0-14 pack of 100 pcs.

Universal litmus paper pH 0-14 pack of 100 pcs. is designed to measure the concentration of free hydrogen ions (acidity, alkalinity) in the range from 0 to 14 units

1. High quality: 100 test papers made of high-quality filter paper. Very suitable for testing the soil quality of garden, outdoor and indoor plants.

2. Fast and accurate: The test range of the soil pH test paper is 0-14. Accurate and reliable test results help you analyze the soil.

3. Simple and convenient to operate and use, very practical and useful.

4. Easy to carry: 1 bottle of 100 test papers, enough to do 100 soil pH tests, easy to carry, can be measured anywhere.

5. Application: The soil test kit suitable for indoor and outdoor plants, gardens and lawns, fruits, flowers, vegetables, shrubs and so on, can provide you with comprehensive information about the soil condition of gardens and lawns.

Test procedure

For water and urine

1. Remove one strip from the vial and immediately close the lid (the strips must be sealed to protect from moisture).

2. Regarding urine analysis: check the first and second urine of the day.

3. Holding the strip at the opposite end from the test pad, immerse the reagent area (test pad) of the strip in the urine/water sample and remove immediately.

4 Remove excess urine/water from the test strip.

5. Compare the strips with the color chart on the bottle, box, or user manual.

6. Color changes that appear after 30 seconds have no diagnostic value.

7. Discard the used test strip.

For saliva

1. Perform this test immediately after waking up in the morning or wait 1-2 hours after eating or drinking.

2. Collect saliva in your mouth, swallow and repeat several times.

3. Spit the saliva into a spoon or small cup.

4. Dip the pH test strip pad into the saliva for 3-4 seconds.

5. Remove excess saliva from the test strip.

6. Compare the strips with the color chart on the bottle, box, or user manual.

7. Compare the color change of the test strips with the color scale and record the results.

8. Color changes that appear after 30 seconds have no diagnostic value.

9. Discard the used test strip.

For the soil (indoor and outdoor plants, gardens and meadows, farms, fruits, flowers, vegetables, shrubs, etc.)

1. Use a tablespoon to place 8 tablespoons of soil sample into a cup or test jar.

2. Use a tablespoon to thoroughly mix 8 tablespoons of water into the soil sample for 30 seconds.

3. Before testing, allow the soil/water solution to stand for 30 minutes to allow stratification to occur. Then dip the pH test paper into the solution. Keep the test paper in the solution for 3 seconds.

4. After 30 seconds, match the color palette with the color card.

5. Throw away the used test strip.

Material: test paper

Size: 10.5*4 cm

pH range: 0-14 pH (0-6.5 acidic, 6.5-7.5 neutral, 7.5-14.0 alkaline)

Test conditions

Ambient temperature: 20°C to 30°C, relative humidity: 80%, optimal temperature for the test: 23 to 27°C.

Limitations of pH strips

For better pH determination and strip accuracy, we recommend that you test multiple times (2-3 times).

Storage

Store in a dry place at a temperature of 20 to 30 °C. Do not place in direct sunlight or in the refrigerator, do not touch the test area. For best results, keep it away from moisture, sunlight or strong heat.