FB Bacteria Test Bottle

FB Bacteria Test Bottle

Determination of bacteria in water 

Testing principle 

The principle of extinction dilution method was used in the determination of bacteria in water by test bottle method. The water sample to be determined will be injected into the test bottle step by step with sterile syringe for dilution, and each test bottle will dilute the number of bacteria in the water sample by 10 times. Until there is no bacterial growth in the last test bottle, then calculate the bacterial content in the water sample according to the dilution multiple. 

If the liquid in fb-hx iron bacteria test bottle shows black or brown colloid precipitation, or the red brown of the original liquid disappears into transparent clear liquid, it indicates the growth of iron bacteria. 

Package: 180 pieces / box 
Production validity: 1 year 
Storage conditions: room temperature, dark

水中细菌的测定

测试原理

釆用绝迹稀释法原理，用试瓶法测定水中细菌。待测水样用无菌注射器逐级注入试瓶稀释，每一试瓶稀释10倍。直到后一个测试瓶中没有细菌生长，然后根据稀释倍数计算水样中的细菌含量。
FB-HX铁细菌测试瓶中的液体岀现黑色或棕色胶体沉淀,或原液体的红棕色消失变为透明清液者,均表示有铁细菌生长。

包装：180只/箱

生产有效期：1年

储存条件：室温，避光保存