The Draft British Standard 6002: "Sampling Inspection by Variables"

Gascoigne, John; Hill, I. D.

doi:10.2307/2344838

Cited by 5 publications

(1 citation statement)

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“…A total specifications system has been described based upon the assumption that the distribution of micro-organism density within a batch of food is log normal. As the distribution deviates from log normality, the scheme becomes less precise (Gascoigne & Hill 1976), but experience suggests that the assumption of log normality within a batch is in fact often adequately satisfied. For example, Table 3 shows the distribution of bacteria, obtained with a 30 "C aerobic plate count, in a cooked meat product examined over a two-month production period.…”

Section: Application Of the Methodsmentioning

confidence: 99%

A System for Setting Numerical Microbiological Specifications for Foods

Kilsby

Aspinall

Baird‐Parker

1979

Journal of Applied Bacteriology

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A scheme is described which can be applied to any numerical microbiological limit where the distribution of microorganism density is approximately log normal. The actual limits used, the degree of safety assurance required, the definition of an unsatisfactory batch and the number of units examined may be chosen to suit any particular requirement. The scheme's versatility and ability to operate with low sample numbers make it ideal for microbiological specifications. It is based on consideration of both safety and quality requirements and good manufacturing practice.

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Section: Application Of the Methodsmentioning

confidence: 99%