GB/T 3810.3-2006: Translated English of Chinese Standard. (GBT 3810.3-2006, GB/T3810.3-2006, GBT3810.3-2006): Test methods of ceramic tiles - Part 3: Determination of water absorption, apparent porosity, apparent relative density and bulk density.
This Standard specifies the terms and definitions, principle, apparatus and materials, test pieces, procedure, expression of results, test errors and test report for the determination of the bulk density, apparent porosity and true porosity of dense shaped refractory products.
This Standard specifies two methods for the determination of the bulk density of granular refractory materials (grain density) with a grain size of larger than 2mm. Method 1: Weighing method; Method 2: Burette method.
JBT 7155-2009 specifies the wheel for wheeled construction machinery - type, marks, requirements, test methods, inspection provisions, signs, packaging, transport and storage. This Standard applies to wheel for wheeled construction machinery.
JBT 8816-1998 specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality guarantee period, etc. of engineering machinery drive axle. This Standard applies to general drive axle and steering drive axle of wheel type construction machinery (steering knuckle and bearing parts excluded).
HJT 5948-1991 machinery traveling crane brake system. This Standard applies to caliper disc brakes of loaders, scrapers, graders, dumpers and other wheel construction machinery traveling crane brake system (hereinafter referred to as the brake).
This Standard specifies design/manufacturing safety requirements, test requirements, safe operation requirements and others for portable metal ladders. This Standard is applicable to portable metal extension ladder (two-section or three-section extension ladders), portable metal single ladder, portable metal stepladder and portable metal combination ladder used on production activities.
This Standard specifies the technical specification and test method for on-board diagnostic (OBD) system - compression ignition engines and vehicles with such engines; and positive ignition engines and vehicles with such engines which are fuelled by natural gas (NG) or liquid petroleum gas (LPG). This Standard applies to the type approval and production consistency inspection for the OBD system of the compression ignition (including gas fuelled positive ignition) engines; and the relevant vehicles of classes M2, M3, N1, N2 and N3 which are designed for speed greater than 25 km/h; and vehicles of class M1 which have total mass greater than 3500 kg.
This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and quality certificates and orders (or contracts) for wrought aluminum and aluminum alloys extruded profiles for general engineering.
This Standard specifies the terms and definitions, product classification, requirements and test methods of lens ultrasonic removal and vitrectomy device for ophthalmic surgery. This Standard is applicable to the lens ultrasonic removal device for ophthalmic surgery which also possesses the vitrectomy function.
This Standard specifies terms and definitions, basic requirements, technical contents and testing methods of environmental labeling products - wood based panels and finishing products. This Standard applies to wood based panels, floor boards, wall boards and other products.
In order to standardize the design of electrical instillations in explosive atmosphere, make electrical installations in explosive atmosphere follow the policies of prevention first, guarantee the personal and property safety and take preventive measures according to circumstances, this Code is hereby developed.
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