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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards;  We provide Chinese GB standards and English version GB standards  Lookup, Translate, Download, Purchase services.
  •  China "YS" GB Standards List:
  • Standard  Code GB Standard Title Standard Class Order
    GB/T 223.47-1994 Methods for chemical analYSis of iron,steel and alloy--The carrier precipitation-molybdenumblue potometric method for the determination of antimony content
    钢铁及合金化学分析方法 载体沉淀-钼蓝光度法测定锑量

    YS-China National GB Standards

    TB/T 2607-1994 (Railway Industry Classification phYSical strength)

    YS-China Railway & Train Standards

    GB/T 223.32-1994 Methods for chemical analYSis of iron,steel and alloy--The hypophosphite reduction-iodimetric method for the determination of arsenic content
    钢铁及合金化学分析方法 次磷酸钠还原-碘量法测定砷量

    YS-China National GB Standards

    YD/T 166-1994 Design document management sYStem for posts and telecommunications industry

    YS-China Telecommunication Standards

    TB/T 2500-1994 (WaYSide telephone equipment (wired) standard series and the main technical conditions)

    YS-China Railway & Train Standards

    TB/T 2499-1994 (Data communication sYStem terminal interface and link control procedures centralized scheduling and dispatching supervision)

    YS-China Railway & Train Standards

    TB/T 2496-1994 (Electric centralized computer monitoring sYStem technical requirements)

    YS-China Railway & Train Standards

    TB/T 2494.1-1994 (Rail vehicle axle axle ultrasonic flaw detection method for the new sYStem control wounds)

    YS-China Railway & Train Standards

    TB 10112-1994 (Railway Signal silicon solar power sYStem technical specifications)

    YS-China Railway & Train Standards

    YD/T 685-1994 Quality grading criteria of four-way accompanying sound modem equipment for color TV analog terrestrial microwave relay sYStem

    YS-China Telecommunication Standards

    GB/T 223.22-1994 Methods for chemical analYSis of iron,steel and alloy--The nitroso-R-salt spectrophotometric method for the determination of cobalt content
    钢铁及合金化学分析方法 亚硝基R 盐分光光度法测定钴量

    YS-China National GB Standards

    YD/T 646-1994 Long-haul terrestrial analog radio relay sYStem Quality grading criteria of color TV modulation and demodulation equipment (one TV + one accompanying sound program)

    YS-China Telecommunication Standards

    GB/T 223.21-1994 Methods for chemical analYSis of iron,steel and alloy--The 5-Cl-PADAB spectrophotometricmethod for the determination of cobalt content
    钢铁及合金化学分析方法 5-Cl-PADAB分光光度法测定钴量

    YS-China National GB Standards

    YD 5004-1994 Code for design digital microwave relay telecommunication sYStem (PDH part) engineering

    YS-China Telecommunication Standards

    GB/T 223.18-1994 Methods for chemical analYSis of iron,steel and alloy--The sodium thiosulfate separation iodimetric method for the determination of copper content
    钢铁及合金化学分析方法 硫代硫酸钠分离-碘量法测定铜量

    YS-China National GB Standards

    GB/T 223.18-1994 Methods for chemical analYSis of iron,steel and alloy--The sodium thiosulfate separation iodimetric method for the determination of copper content
    钢铁及合金化学分析方法 硫代硫酸钠分离-碘量法测定铜量

    YS-China National GB Standards

    GB/T 223.20-1994 Methods for chemical analYSis of iron,steel and alloy--The fotentiometric titration method for the determination of cobalt content
    钢铁及合金化学分析方法 电位滴定法测定钴量

    YS-China National GB Standards

    GB/T 223.20-1994 Methods for chemical analYSis of iron,steel and alloy--The fotentiometric titration method for the determination of cobalt content
    钢铁及合金化学分析方法 电位滴定法测定钴量

    YS-China National GB Standards

    GB/T 223.50-1994 Methods for chemical analYSis of iron,steel and alloy--The phenylfluorone-CTMAB direct photometric method for the determination of tin content
    钢铁及合金化学分析方法 苯基荧光酮-溴化十六烷基三甲基胺直接光度法测定锡量

    YS-China National GB Standards

    YD/T 684-1994 Quality grading criteria of parabolic antenna for microwave relay communication sYStem

    YS-China Telecommunication Standards


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