GBZT 229.4-2012 工作场所职业病危害作业分级第4部分：噪声

Page 1 <img data-url='document/gbzt-2294-2012-4.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022050622/568c4bcc1a28ab49169d9a86/html5/thumbnails/1.jpg' width='140' height='200' /> Page 2 <img data-url='document/gbzt-2294-2012-4.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022050622/568c4bcc1a28ab49169d9a86/html5/thumbnails/2.jpg' width='140' height='200' /> Page 3 <img data-url='document/gbzt-2294-2012-4.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022050622/568c4bcc1a28ab49169d9a86/html5/thumbnails/3.jpg' width='140' height='200' /> Page 4 <img data-url='document/gbzt-2294-2012-4.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022050622/568c4bcc1a28ab49169d9a86/html5/thumbnails/4.jpg' width='140' height='200' /> Page 5 <img data-url='document/gbzt-2294-2012-4.html?page=5' data-page='5' class='cut-thumb lazyload' alt='Page 5: GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022050622/568c4bcc1a28ab49169d9a86/html5/thumbnails/5.jpg' width='140' height='200' /> Page 6 <img data-url='document/gbzt-2294-2012-4.html?page=6' data-page='6' class='cut-thumb lazyload' alt='Page 6: GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022050622/568c4bcc1a28ab49169d9a86/html5/thumbnails/6.jpg' width='140' height='200' /> Page 7 <img data-url='document/gbzt-2294-2012-4.html?page=7' data-page='7' class='cut-thumb lazyload' alt='Page 7: GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader034.cupdf.com/reader034/viewer/2022050622/568c4bcc1a28ab49169d9a86/html5/thumbnails/7.jpg' width='140' height='200' />

GBZT 229.4-2012 工作场所职业病危害作业分级 第4部分：噪声

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GBZT 229.4-2012 工作场所职业病危害作业分级第4部分：噪声