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GB/T 223.51-1987
Methods for chemical analysis of iron，steel and alloy--The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content
GB/T 223.57-1987
Methods for chemical analysis of iron，steel and alloy--The extraction-absorption catalytic polarographic method for the determination of cadmium content
GB/T 223.54-1987
Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrophotometric method for the determination of nickel content
GB/T 223.53-1987
Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content
GB/T 7738-1987
Notations for designation of ferroalloys
GB 7793-1987
Hygienic standard of lighting and illumination in elementary and middle school
GB/T 7703.1-1987
Lettering and marking of railway cars--General regulation
GB/T 7703.2-1987
Lettering and marking of railway cars--Letterand style of calligraphy
GB/T 7714-1987
Descriptive rules for bibliographic references
GB/T 7713-1987
Presentation of scientific and technical reports，dissertations and scientific papers
GB/T 7682-1987
Types and basic parameters for the milk separator
GB/T 7700-1987
Bobbins for 16mm motion picture projectors--Dimentions
GB/T 7666-1987
Nomenclature and code for transducers
GB/T 7694-1987
The rule of nomenclature for dangerous goods
GB/T 7665-1987
General terminology for transducers
GB/T 7660.1-1987
Reflecting prisms--Optical axis， length of optical axis，axial section and optical parallelism
GB/T 7643-1987
Sticklac
GB/T 7636-1987
Standard on design of biogas pipelines for peasant household
GB/T 7637-1987
Operation rules of construction and installation of biogas pipelines for peasant household
GB 7658-1987
Food additive--D-sorbitol solution