1 Scope
This Part of SN/T 2552 specifies the colony-count method of psychrophilic microorganisms at 6.5℃ and rapid colony-count method for assessment of psychrophilic microorganism quantity at 21℃.
This Part is applicable to the colony-count of psychrophilic microorganisms in raw milk, pasteurized milk and other heat-treated milk; other milk and dairy products may be implemented by reference to this Part.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document.
SN/T 2552.1 Microbiological Examination Method for Milk and Milk Products Hygiene - Part 1: Guidance on Sampling
SN/T 2552.2 Microbiological Examination Method for Milk and Milk Products Hygiene - Part 2: Preparation of Test Samples, Initial Suspensions and Decimal Dilutions
3 Terminologies and Definitions
For the purposes of this document, the following teminology and definition apply.
3.1
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Principle
5 Equipment and Materials
6 Culture Medium and Reagents
7 Sampling
8 Procedures
9 Expression of Results
10 Repeatability
11 Result Report
12 Procedures
13 Expression of Results
14 Repeatability
15 Result Report
Appendix A (Normative) Milk Plate Count Agar Culture Medium
Standard
SN/T 2552.4-2010 Microbiological Examination Method for Milk and Milk Products Hygiene - Part 4: Colony-count Method of Psychrotrophic Microorganisms (English Version)
Standard No.
SN/T 2552.4-2010
Status
valid
Language
English
File Format
PDF
Word Count
4500 words
Price(USD)
110.0
Implemented on
2010-12-1
Delivery
via email in 1 business day
Detail of SN/T 2552.4-2010
Standard No.
SN/T 2552.4-2010
English Name
Microbiological Examination Method for Milk and Milk Products Hygiene - Part 4: Colony-count Method of Psychrotrophic Microorganisms
Chinese Name
乳及乳制品卫生微生物学检验方法 第4部分:嗜冷微生物菌落计数
Chinese Classification
Professional Classification
SN
ICS Classification
Issued by
AQSIQ
Issued on
2010-05-27
Implemented on
2010-12-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
4500 words
Price(USD)
110.0
Keywords
SN/T 2552.4-2010, SN 2552.4-2010, SNT 2552.4-2010, SN/T2552.4-2010, SN/T 2552.4, SN/T2552.4, SN2552.4-2010, SN 2552.4, SN2552.4, SNT2552.4-2010, SNT 2552.4, SNT2552.4
Introduction of SN/T 2552.4-2010
1 Scope
This Part of SN/T 2552 specifies the colony-count method of psychrophilic microorganisms at 6.5℃ and rapid colony-count method for assessment of psychrophilic microorganism quantity at 21℃.
This Part is applicable to the colony-count of psychrophilic microorganisms in raw milk, pasteurized milk and other heat-treated milk; other milk and dairy products may be implemented by reference to this Part.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document.
SN/T 2552.1 Microbiological Examination Method for Milk and Milk Products Hygiene - Part 1: Guidance on Sampling
SN/T 2552.2 Microbiological Examination Method for Milk and Milk Products Hygiene - Part 2: Preparation of Test Samples, Initial Suspensions and Decimal Dilutions
3 Terminologies and Definitions
For the purposes of this document, the following teminology and definition apply.
3.1
Contents of SN/T 2552.4-2010
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Principle
5 Equipment and Materials
6 Culture Medium and Reagents
7 Sampling
8 Procedures
9 Expression of Results
10 Repeatability
11 Result Report
12 Procedures
13 Expression of Results
14 Repeatability
15 Result Report
Appendix A (Normative) Milk Plate Count Agar Culture Medium