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Du kan returnera produkten utan att ge en orsak inom 14 dagar.
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Du kan returnera produkten utan att ge en orsak inom 14 dagar.
14 dagar för en retur
Din tillfredsställelse är väldigt viktig för oss, därför kan du göra en avkastning utan att ge en anledning till det
14
dagar.
No stress and worry
Tack vare integrationen med billiga avkastningar kan du köpa utan stress och vara säker på att returprocessen blir problemfri.
Enkelt returnerar guiden
Alla avkastningar som behandlas av vår butik hanteras i en användarvänlig returguide som ger dig möjlighet att skicka ett returpaket.
- För pH-testet, upp till 80 test
- pH 1 till pH 14
Take accurate alkaline/acid tests with each pack.
80 Litmus paper strips
Each book also includes a colour chart.
Make sure your water is safe before using: Litmus paper is invaluable for testing the acid and alkaline levels in all kinds of applications from spas, ponds and aquariums to conducting scientific experiments.
Also can test the pH of cosmetics, weak acid is the best.
The scale reads from 1-14:
1 - 3 indicates a very acidic substance
4 - 6 indicates an acidic substance
7 indicates neutral
8 - 11 indicates alkalinity
12 - 14 indicates a very high level of alkalinity
Specifications:
Scale: 1 - 14
Pack size: 1 book (containing 80 strips)
Colour charts included
Each book is brand new and individually sealed in plastic for a longer life span and will arrive fresh and ready to use
How to use:
1. Tore off a test strip, take a drop of solution to be tested. When the solution and test strip produce color reaction, then compared with the color card, and ph value.
Note: Please do not put the test strip placed directly into the solution, just with a drop of to dip.
2. This paper does not apply very weak concentration of the buffer solution and acid solution is less than 0.01%.
3. This paper needs to be stored in a dark, dry place.
Användarnas recensioner