TGB Bacteria Test Bottle

TGB 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. 

The liquid in tgb-hx test bottle changes from red to yellow, or the original liquid changes from clear and transparent to turbid and opaque, indicating the growth of saprophytic bacteria. 

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

水中細(xì)菌的測(cè)定原理
釆用絕跡稀釋法原理，用試瓶法測(cè)定水中細(xì)菌。待測(cè)水樣用無菌注射器逐級(jí)注入試瓶稀釋，每一試瓶稀釋10倍。直到后一個(gè)測(cè)試瓶中沒有細(xì)菌生長(zhǎng)，然后根據(jù)稀釋倍數(shù)計(jì)算水樣中的細(xì)菌含量。

TGB-HX腐生菌測(cè)試瓶中的液體由紅色變?yōu)辄S色,或原液體由清澈透明變?yōu)闇啙岵煌该?均表示有腐生菌生長(zhǎng)。

包裝：180只/箱

生產(chǎn)有效期：1年

儲(chǔ)存條件：室溫，避光保存