This standard specifies the terms and definitions, rules, methods for inspecting and testing of the main technical performance of the newly-built railway freight car after completion and before being put into service.
This standard is applicable to inspecting and testing of newly-built railway freight cars with maximum operating speed less than or equal to 120 km/h and axle load less than or equal to 30 t. For newly-built railway freight cars with a maximum operating speed more than 120 km/h and an axle load more than 30 t, or with special requirements for structure and operation (such as heavy-duty freight cars, liquefied gas tank cars, etc.), this standard can be taken as a reference.
定价: 588元 / 折扣价: 500 元 加购物车
This standard specifies the terms and definitions,storage quality classification,storage quality index,test methods,inspection rules and evaluation rules for maize storage character.
This standard is applicable to evaluate the storage character of maize under safe moisture content and normal storage conditions,to guide the storage and timely rotation of maize.
定价: 516元 / 折扣价: 439 元 加购物车