GB/T 13277.7-2021Compressed air - Part 7: Test method for viable microbiological contaminant content (English PDF)
压缩空气 第7部分：活性微生物含量测量方法压缩空气 第7部分：活性微生物含量测量方法
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
December 31, 2021
Implementation date
July 1, 2022
Scope
GB/T 13277.7-2021 is the English-translated version of 压缩空气 第7部分：活性微生物含量测量方法压缩空气 第7部分：活性微生物含量测量方法.
GB/T 13277.7-2021 is the Chinese standard "Compressed air - Part 7: Test method for viable microbiological contaminant content".
Its scope clause reads: This document specifies procedures for determining the presence, sampling, culturing and quantifying the presence of viable microorganisms (e:g: yeast, bacteria, endotoxins) experiment method: This document applies to the evaluation of purification levels according to GB/T 13277:1, and also applies to the determination of solid particles in combination with GB/T 13277:4: active colony-forming units:. Its clauses include terms and definitions.
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Document preview — GB/T 13277.7-2021
National Standard of the People's Republic of China
- Classification
- J 72
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- Preface
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Method 2 to determine the presence of viable microorganisms by partial flow sampling
- 5 Working condition
- 6 Determination of viable colony microorganisms
- 7 Test report
- Appendix A (normative) Quantitative sampling method
- Appendix B (Informative) Endotoxin Sampling
- Appendix C (Informative) Preparation of Petri Dish with Medium
- Appendix D (Informative) Measurement of Quantity of Active Microorganisms in Compressed Air --- Sampling Test Report
1 Scope
This document specifies procedures for determining the presence, sampling, culturing and quantifying the presence of viable microorganisms (e:g: yeast, bacteria, endotoxins) experiment method:
This document applies to the evaluation of purification levels according to GB/T 13277:1, and also applies to the determination of solid particles in combination with GB/T 13277:4:
active colony-forming units:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document:
GB/T 13277:1 Compressed Air Part 1: Pollutant Purification Level (GB/T 13277:1-2008, ISO 8573-1:2001,
MOD)
GB/T 13277:4 Compressed Air Part 4: Method for the Measurement of Solid Particles (GB/T 13277:4-2015, ISO 8573-4:
2001, MOD)
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1 microbiologicalorganisms
Particles capable of forming active flora:
NOTE: These can be identified as bacteria, yeast or fungi:
3:2 numberofviablemicro-organisms
The number of microorganisms with the potential for metabolic activity:
3:3 culturablenumber
The number of aggregates, single cells or microorganisms that can form colonies on a solid nutrient medium:
3:4 colony-forming unit
CFU A unit that represents the culturable quantity: […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.
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Related Standards
GB/T 13277.1-2008 — Compressed air - Part 1: Contaminants and purity classes
GB/T 13277.1-2023 — Compressed air - Part 1: Contaminants and purity classes
GB/T 13277-1991 — Compressed air for general use. Quality classes
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GB/T 13277.7-2021
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