According to the new standard of GB/T8074-2008,together with national building materials research institution,new material is institution ,and quality supervision ,examination and test center for instrument and equipment,our company has developed new SZB-9 type full -automatic tester for specific area. The tester is controlled by single-ship microcomputer and operated by light touch key.The tester can automatically manage the whole measuring process and automatically record the value of tester.The product can display directly the value of specific area and record the value and test time automatically.Technical parameters:1.Power supply:220V±10%2.Rang of timing:0.1-999.9 seconds3.The precision of timing:<0.2 seconds4.The precision of measurement:≤1 ‰5.The range of temperature:8-34°C6.The value of specific surface area:0.1-9999.9cm²/g7.Scope of application:within the specified scope of GB/T8074-2008