{"id":381367,"date":"2024-10-20T03:11:14","date_gmt":"2024-10-20T03:11:14","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-21-30405769-dc\/"},"modified":"2024-10-26T05:46:59","modified_gmt":"2024-10-26T05:46:59","slug":"bsi-21-30405769-dc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-21-30405769-dc\/","title":{"rendered":"BSI 21\/30405769 DC"},"content":{"rendered":"

This document specifies an engineering method for measuring the interior sound of road vehicles of categories M and N under typical driving conditions. It does not apply to agricultural tractors and field machinery.<\/p>\n

It specifies the conditions for obtaining reproducible and comparable measurements of sound pressure levels inside a vehicle.<\/p>\n

These measurements are used to obtain a representative average sound level during a typical driving cycle to enable assessment of adverse effects on human health.<\/p>\n

The results may be used for<\/p>\n