Total Bacteria Count 總菌數
Typical colonies in plate count agar
平板計數瓊脂中的典型菌落
Total Bacteria Count (TBC), also known as Heterotrophic Plate Count (HPC), Heterotrophic Colony Count (HCC), Aerobic Plate Count (APC), Total Plate Count (TPC), or Standard Plate Count (SPC), represents the total bacterial load in a given sample. It is a test to detect all viable microorganisms that could grow aerobically on plate count agar at appropriate incubation condition (usually 37°C, 48hrs). The TBC tests could reflect the general hygiene condition of a sample. Guideline values of TBC depends on nature of samples, and they may be varied in different countries. The following shows some of the guideline values of TBC.
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Swimming Pool Water - not exceed 200 cfu/mL (Hong Kong)
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Drinking Water - not exceed 100 cfu/mL (China)
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Cooling Tower Water - not exceed 10,000 cfu/mL (Hong Kong)
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Ready-to-eat Food (Satisfactory Level) - < 10 to 1,000,000 cfu/g depends on food types (Hong Kong)
cfu = colony forming unit
Enviro Labs Ltd. (ELL) holds HOKLAS accreditation for testing Heterotrophic Plate Count (HPC) or Aerobic Plate Count (APC) in water, wastewater, marine water, and food samples. Call us at 2676 2983 or e-mail info@envirolabs.com.hk for details of the services.
細菌總數(TBC),也被稱為異養菌數(HPC)、異落菌數(HCC)、好氧菌數(APC)、菌落總數(TPC)或 標準平板菌數(SPC),代表樣本中的總細菌數目。這是一個最常見的微生物測試,以檢測所有在適當的孵化條件下(通常是37℃、48小時),生長在平板計數瓊脂的活存好氧細菌。TBC / HPC 測試結果可反映樣本一般衛生狀況。樣本的 TBC / HPC 合格指標取決於樣品的性質,不同的國家可能會有不同的標準。下面顯示了一些香港及內地的TBC / HPC 指標:
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游泳池水 - 不超過 200 cfu/mL(香港)
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飲用水 - 不超過 100 cfu/mL(中國)
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冷卻水塔水 - 不超過 10,000 cfu/mL(香港)
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即食食品(滿意程度)- < 10 至 1,000,000 cfu/g 取決於食品類型(香港)
cfu = 菌落形成單位
環境化驗有限公司(ELL)已取得檢驗 水(包括 游泳池水 及 飲用水)、污水 (包括 冷卻塔水)、海水 及 食品 總菌數的 HOKLAS 認可資格。如果對我們的測試服務有任何查詢,請致電 26762983 或 發送電子郵件至 info@envirolabs.com.hk 了解詳情。