{"id":571851,"date":"2024-11-05T19:29:22","date_gmt":"2024-11-05T19:29:22","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iec-61672-12002\/"},"modified":"2024-11-05T19:29:22","modified_gmt":"2024-11-05T19:29:22","slug":"iec-61672-12002","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iec\/iec-61672-12002\/","title":{"rendered":"IEC 61672-1:2002"},"content":{"rendered":"<p>Gives electroacoustical performance specifications for three kinds of sound measuring instruments:<\/p>\n<\/p>\n<p>\n&#8211; a conventional sound level meter that measures exponential time-weighted sound level;<\/p>\n<\/p>\n<p>\n&#8211; an integrating-averaging sound level meter that measures time-average sound level; and<\/p>\n<\/p>\n<p>\n&#8211; an integrating sound level meter that measures sound exposure level.<\/p>\n<\/p>\n<p>\nA single instrument may make any, or all, of the three kinds of measurements.<\/p>\n<\/p>\n<p>\nTwo performance categories, class 1 and class 2, are specified in this standard. In general, specifications for class 1 and class 2 sound level meters have the same design goals and differ mainly in the tolerance limits and the range of operational temperatures. Tolerance limits for class 2 specifications are greater than, or equal to, those for class 1 specifications.<\/p>\n<\/p>\n<p>\nSound level meters conforming to the requirements of this standard have a specified frequency response for sound incident on the microphone from one principal direction in an acoustic free field or from random directions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Electroacoustics &#8211; Sound level meters &#8211; Part 1: Specifications<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/iec\/\"><b>IEC<\/b><\/a><\/td>\n<td>2002-05-29<\/td>\n<td>94<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":571862,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[270,2636],"product_tag":[],"class_list":{"0":"post-571851","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-140-50","7":"product_cat-iec","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/571851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/571862"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=571851"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=571851"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=571851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}