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Updated: Aug 2, 2026

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北京工作场所的噪音暴露水平监测

Yan Dong1, Yuqian Li1, Yan Liu1

  • 1Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, China.

Frontiers in public health
|May 14, 2025
PubMed
概括

北京工业企业的职业噪音暴露率比全国平均水平低. 建议针对金属制品制造等高风险行业采取有针对性的控制措施.

关键词:
北京 北京 北京 北京 北京职业噪音暴露的职业噪音暴露有关风险因素的风险因素.监控监督监督监督监督监督监督监督监督监督监督监督监督监督监督监督监督监督工作场所 工作场所

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Testing Water Quality01:14

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When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...