This standard specifies the classification and labeling, composition and materials, requirements, test methods, inspection rules, marking, packaging, transportation and storage of concrete slump meters (hereinafter referred to as slump meters). This standard applies to the design, production and quality inspection of slump meters.
JG/T 248-2009 Referenced Document
GB/T 1591 High strength low alloy structural steels*, 2018-05-14 Update