Product introduction

Application
The speed test case for the vinegar in the rapid detection of free mineral acid
Test principle
The main component of vinegar is acetic acid (content of 3.5%) and contains small amounts of other organic acids. The vinegar as raw materials brewed may not have free mineral acid (sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid and other inorganic acids and organic acids). In vinegar made up by non-edible acid, user can detect free mineral acid, or the contaminated vinegar often can be detected free mineral acid.
Specification: 40times
Storage: normal temperature, avoid the sunlight.
1. free mineral acid test A£¨yellow£©
2. free mineral acid test B£¨purple£©
Period validity: 24 months.

Usage
1. Use a thin glass rod or capillary tube to take a little dip into the free mineral acid sample test paper A, within 1 second, if the purple spots appear at the point-like or purple ring (ring light purple) that are positive results, yellow or white ring are negative results.
2. Then use the free mineral acid test paper B directly picks up the sample cup of vinegar, within 1 second, if the strip turns blue or green that means the result is positive.