Description
A simple and effortless method for ascertaining the pH value of solutions, Johnson Test Papers have been manufactured using high quality media impregnated with mixed indicator dyes for many decades. The pH value can be ascertained in an instant with these simple to use and rapid pH papers.
Features
• 004.1CE Universal Indicator Paper
• Tests parameter pH 1-11
• Test graduations 1-2-3-4-5-6-7-8-9-10-11
• 10 books of 20 strips
• CE marked and certified
• For use in professional/clinical environment
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