GB/T 38517-2020 in English

VALID

Particulate—Bioaerosols sampling and analysis—General principles

Issued on:2020-03-06
Implemented on:2020-06-01
File Format:PDF
Delivery:Within 1 day

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Standard No:	GB/T 38517-2020
Document status:	VALID
Title in English:	Particulate—Bioaerosols sampling and analysis—General principles
Title in Chinese:	颗粒生物气溶胶采样和分析通则
Language:	English
File Format:	Electronic (PDF)
Delivery:	Within 1 day
Issued on:	2020-03-06
Implemented on:	2020-06-01
Professional Classification:	GB-National Standard
Related Keywords:	particulate bioaerosols sampling gb50591 standard sampling time sampling analysis general types10minhigh analysis
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《GB/T 38517-2020颗粒生物气溶胶采样和分析通则》由TC168（全国颗粒表征与分检及筛网标准化技术委员会）归口，TC168SC1（全国颗粒表征与分检及筛网标准化技术委员会颗粒分会）执行，主管部门为国家标准化管理委员会。

Introduction

Interpretation of the core content of the standard

This standard systematically specifies the full-process technical requirements for the sampling of biological aerosols in ambient air, with the key points including:

1. Sampling method system

7 basic sampling principles (impact/impact/membrane/centrifugal, etc.)
Differentiated sampling schemes for 4 biological components (bacteria/virus/fungus/toxins)

Comparison of key technologies

Sampling type	Applicable microorganisms	Maximum sampling time	Influence on survival rate
Impact type	Bacteria, fungi	15min	Medium
Impact type	Virus, toxin	30min	Low
Membrane filter type	All types	10min	High

Analysis of implementation points

Typical case: Fungus detection in hospital clean rooms

Choose Slit impact sampler with Sabouraud culture medium
Sampling points are arranged according to GB50591 standard
Sampling time is controlled between 8-15 minutes
Colony count is performed after 7 days of incubation at 28℃

Safety protection requirements

Corresponding measures should be taken according to different biosafety levels:

BSL-1 level: basic personal protective equipment
BSL-2 level: N95 mask + goggles
BSL-3 level: positive pressure protective clothing + two-person operation

More samples: GB 50021-2001(2009) YD/T 3934-2021 GB 18306-2015

Sample only — not a preview of GB/T 38517-2020

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