RapidREF 22061979
Organism · Solutions
Total Microbial Count testing
Total viable count is the broadest measure a laboratory runs — not a safety test, but the baseline that tells you whether a process, a raw material or a shelf-life claim is behaving the way it should.
Cream colonies · plate count agar, 30 °CWhy Total Microbial Count testing is demanding
Total viable count measures the population of aerobic mesophilic organisms able to grow under defined conditions. It identifies no specific hazard. Its value is as a baseline: raw material quality, process hygiene, and the rate at which a product approaches the end of its shelf life all show up here before they show up anywhere else.
Because the count is definition-dependent — incubation temperature and time change the result — comparability rests entirely on running the method consistently. A TVC produced at 30 °C for 72 hours is not interchangeable with one produced at 37 °C for 48 hours, and specifications that omit the condition are a common source of dispute.
It is also the highest-volume test most laboratories run, which makes the economics of media preparation and plate reading material. Consistency and throughput matter more than sensitivity for this particular measure.
- Role
- Process baseline
- Result type
- Enumeration
- Reference method
- ISO 4833-1
- Result
- 72 h at 30 °C
Methods compared
The highest-volume test in most laboratories — throughput is the deciding factor.
- Traditional · ISO 4833-1Pour-plate enumeration
Colony-count technique on plate count agar at 30 °C. The reference method, and the one against which alternative formats are validated.
Time to result72 h - RapidReady-to-use counting
Ready-poured and dry-film formats that remove media preparation entirely — the practical choice given the volume of TVC testing a routine programme generates.
Time to result48–72 h - MolecularNot applicable
Molecular methods do not substitute here: the measure is defined by culturability under specified conditions, which is precisely what a nucleic-acid method does not assess.
Time to resultNot applicable
Always state incubation temperature and time — the count is meaningless without them.
Ask usProducts for Total Microbial Count testing
A selection spanning culture media, rapid formats and molecular assays. The full range is in the catalogue.
Standards & compliance
The references a total viable count programme is measured against.
- ISO 4833-1
- Horizontal method for the enumeration of microorganisms — colony count at 30 °C by the pour plate technique.
- ISO 4833-2
- The surface plating counterpart, applied where the matrix or laboratory workflow favours spread plating.
- SFDA
- Supplied through an SFDA-licensed establishment, aligned to Kingdom requirements for the matrices you test.
- ISO/IEC 17025
- Suitable for accredited laboratories, with lot documentation and traceability available on request.
Sourced from the brands your methods are built on.
Testing for Total Microbial Count?
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