GB 50325-2020 民用建筑工程室内环境污染控制标准：英文

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Announcement　of　the　Ministry　of　Housing　and　Urban-Rural　Development　of　the　People's　Republic　of　China

Foreword

1　General　provisions

2　Terms　and　symbols

2.1　Terms

2.2　Symbols

3　Building　materials

3.1　Inorganic　non-metallic　main　building　materials　and　decorating　materials

3.2　Wood-based　panels　and　finishing　products

3.3　Coatings

3.4　Adhesives

3.5　Water-based　treatment　agents

3.6　Others

4　Survey　and　designing　for　building　engineering

4.1　General　requirements

4.2　Radon　concentration　measurement　and　resistance　on　construction　sites

4.3　Choice　of　construction　materials

5　Construction

5.1　General　requirements

5.2　On-site　examination　of　building　materials

5.3　Requirements　for　construction

6　Inspection　and　acceptance

Appendix　A　Measurement　of　radon　exhalation　rate　from　material　surfaces

A.1　The　instrument　directly　measures　the　radon　exhalation　rate　from　the　surface　of　building　materials

A.2　Activated　carbon　box　method　for　the　determination　of　the　rate　of　radon　exhalation　from　the　surface　of　building　materials

Appendix　B　Measurement　of　emission　of　free　formaldehyde　and　VOC　in　decorating　materials　using　environmental　test　chamber　method

Appendix　C　Measurement　of　radon　concentration　in　soil　and　radon　exhalation　rate　from　the　soil　surface

C.1　Measurement　of　radon　concentration　in　soil

C.2　Measurement　of　radon　exhalation　rate　from　the　soil　surface

C.3　Survey　method　of　urban　regional　soil　radon　level

Appendix　D　Measurement　of　benzene，toluene，xylene　in　indoor　air

Appendix　E　Measurement　of　TVOC　in　indoor　air

Explanation　of　wording　in　this　standard

List　of　quoted　standards

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