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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 223.51-1987 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
    钢铁及合金化学分析方法 5-Br-PADAP 光度法测定锌量

    YS-China National GB Standards

    SJ/Z 9094.10-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 3: Simulated systems

    YS-China Electronics Standards

    SJ/Z 9094.11-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 3: Simulated systems--Section 2: Measurements of baseband

    YS-China Electronics Standards

    SJ/Z 9094.1-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 1: Measurements common to sub-systems and simulated systems

    YS-China Electronics Standards

    SJ/Z 9073.3-1987 Electrical relaYS--Part 15: Enderance tests for electrical relay contacts--Specification for the characterics of test equipment

    YS-China Electronics Standards

    SJ/Z 9094.13-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 3: Simulated systems--Section 4: Measurements for F. D. M. transmission

    YS-China Electronics Standards

    SJ/Z 9073.2-1987 Electrical relaYS--Part 5: Insulation tests for electrical relays

    YS-China Electronics Standards

    SJ/Z 9094.15-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 3: Simulated systems--Section 6: Measurements for sound-programme transmission

    YS-China Electronics Standards

    SJ/Z 9094.2-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 2: Measurements for sub-systems--Section 1: General

    YS-China Electronics Standards

    SJ/Z 9094.3-1987 Methods of measurement for equipment used in terrestrial radio relay sYStems--Part 2: Measurements for sub-systems--Section 2: Stand-by channel switching equipment

    YS-China Electronics Standards

    SJ/Z 9094.4-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 2: Measurements for sub-systems--Section 3: R. F. branching networks

    YS-China Electronics Standards

    SJ/Z 9094.5-1987 Methods of measurement for equipment used in terestrial radio-relay sYStems--Part 2: Measurements for sub-systems--Section 4: Frequency modulators

    YS-China Electronics Standards

    SJ/Z 9094.6-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 2: Measurements for sub-systems--Section 5: Frequency demodulators

    YS-China Electronics Standards

    SJ/Z 9094.7-1987 Methods of measurement for equipment used in terrestrial radio-relay sYStems--Part 2: Measurements for sub-systems--Setion 6: Diversity, twin-path and hot stand-by equipment

    YS-China Electronics Standards

    SJ/Z 9141.4-1987 Audio-visual, video and television equipment and sYStems. Part 5: Control, synchronization and address codes. Chapter 1:Synchronized tape/visual operating practice

    YS-China Electronics Standards

    SJ/Z 9094.12-1987 Methods of measurement for equipmemt used in terrestrial radio-relay sYStems--Part 3: Simulated systems--Section 3: Measurements for monochrome and colour television transmission

    YS-China Electronics Standards

    SJ/Z 9025-1987 Identification cards--PhYSical characteristics

    YS-China Electronics Standards

    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
    钢铁及合金化学分析方法 火焰原子吸收分光光度法测定镍量

    YS-China National GB Standards

    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
    钢铁及合金化学分析方法 火焰原子吸收分光光度法测定铜量

    YS-China National GB Standards

    GB/T 223.52-1987 Methods for chemical analYSis of iron,steel and alloy--The hydroxylamine hydrochloride-iodometric method for the determination of selenium content
    钢铁及合金化学分析方法 盐酸羟胺-碘量法测定硒量

    YS-China National GB Standards


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