{"id":176,"date":"2026-07-15T09:43:53","date_gmt":"2026-07-15T01:43:53","guid":{"rendered":"https:\/\/themebb.com\/en\/archives\/176"},"modified":"2026-07-15T09:43:53","modified_gmt":"2026-07-15T01:43:53","slug":"test-standard-for-noise-value-of-air-compressor","status":"publish","type":"post","link":"https:\/\/themebb.com\/en\/archives\/176","title":{"rendered":"Test Standard for Noise Value of Air Compressor"},"content":{"rendered":"

Common standards for noise testing of air compressor<\/h2>\n

the noise generated during the operation of air compressor is an important evaluation object of industrial environmental noise control. The current mainstream air compressor noise test basis includes China’s national standardsGB\/T 4980<\/strong>and international standardsISO 3744<\/strong>. GB\/T 4980 “Measurement of noise of positive displacement compressor” stipulates the method of measuring sound power level in engineering environment, which is applicable to fixed and mobile air compressor; ISO 3744 precision sound pressure method is adopted to measure sound power level in semi-anechoic chamber or free field environment, with higher precision.<\/p>\n

Key parameters: Sound power level (LWA<\/sub>)<\/h2>\n

the core index of air compressor noise detection issound power level<\/strong>(Unit: dB(A)), it reflects the overall sound production ability of the equipment, is not affected by the test distance and environmental reflection, and is convenient for horizontal comparison under different working conditions. Compared with the sound pressure level, the sound power level has more engineering consistency and regulatory applicability.<\/p>\n

Key points of noise detection<\/h2>\n
    \n
  • before testing, ensure that the air compressor is in stable running state under rated working conditions.<\/li>\n
  • The arrangement of measuring points should conform to the envelope surface specified in the standard (such as hexahedron or semi-spherical surface)<\/li>\n
  • the background noise must be at least 10 lower than the measured noise. dB(A), otherwise, it needs to be corrected<\/li>\n
  • recommended IEC 61672-1 first-class precision sound level meter and calibrator<\/li>\n<\/ul>\n

    standard developmentair compressor noise test<\/strong>it is not only the basis for meeting the requirements of environmental protection supervision, but also the key basis for optimizing equipment selection and noise reduction design.<\/p>\n","protected":false},"excerpt":{"rendered":"

    This paper introduces the main standards GB\/T 4980 and ISO 3744 of air compressor noise test, analyzes the significance of sound power level (LWA) as the core evaluation index, and explains the working condition requirements of noise detection, key implementation points such as measuring point arrangement and instrument precision provide technical reference for air compressor noise compliance assessment and noise reduction improvement.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","zob_sync_key":"zsync_cbea320b2b7cc1f4a5120656","zob_sync_source_post_type":"post","zob_sync_lang":"en-US","zob_sync_source_url":"https:\/\/themebb.com\/blog\/archives\/287.html","zob_sync_key_version":"v1","zob_sync_source_blog_id":"1","zob_sync_source_post_id":"287"},"categories":[23],"tags":[],"class_list":["post-176","post","type-post","status-publish","format-standard","hentry","category-haha"],"_links":{"self":[{"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/posts\/176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/comments?post=176"}],"version-history":[{"count":0,"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/posts\/176\/revisions"}],"wp:attachment":[{"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/media?parent=176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/categories?post=176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/themebb.com\/en\/wp-json\/wp\/v2\/tags?post=176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}