BS ISO 22197-4-2021Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for air-purification performance of semiconducting photocatalytic materials. Removal of formaldehyde

标准类别：[BS] 英国标准学会标准
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标准编号：BS ISO 22197-4-2021
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更新时间：2022-03-31
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BS ISO 22197-4-2021Fine ceramics (advanced ceramics, advanced technical ceramics). Test method for air-purification performance of semiconducting photocatalytic materials. Removal of formaldehyde

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