This standard specifies the structure and principle, technical requirements, test methods, inspection rules, marking and packaging of a measuring instrument for measuring the air content of cement concrete mixtures using the hybrid air pressure method (hereinafter referred to as the measuring instrument). This standard applies to the measuring instrument used in JTG E30-2005 to measure the air content of cement concrete mixtures using the hybrid air pressure method (T 0526-2005).
JT/T 755-2009 Referenced Document
GB/T 1226 General pressure gauge*, 2017-12-29 Update
GB/T 191 Packaging.Pictorial marking for handling of goods
JT/T 755-2009 history
2009JT/T 755-2009 Air entrainment meter of freshly mixed concrete by the volumetric method