Browse Standards
Found: 212212 — page 2988 of 4422
Valid
YD/T 1726-2007 — Security Technical Requirements for Presence Service in 2GHz TD-SCDMA/WCDMA Digital Cellular Mobile Communication Network
National·Recommended
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$105.007 pages
Valid
YD/T 1727-2007 — Technical Requirements of Broadcast and Multicast Service Security in 2GHz cdma2000 Digital Cellular Mobile Communication Network
National·Recommended
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$195.0011 pages
Superseded
YD/T 5015-2007 — Specifications of Engineering Drawing and Graphical Symbols for Communication Projects Diagrams
National·Recommended
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$890.00PDF
Valid
YD/T 502-2007 — Diesel Generator Sets for Telecommunications
National·Recommended
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$235.0015 pages
Superseded
YD/T 5144-2007 — Provisional Specifications of Engineering Design for Automatically Switched Optical Network
National·Recommended
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$650.00PDF
Superseded
YD/T 5145-2007 — Provisional Specifications of Engineering Acceptance for Automatically Switched Optical Network (ASON)
National·Recommended
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$650.00PDF
Valid
YD/T 5151-2007 — Design Specification of Optical Fiber Cable in the Leading-in Room
National·Recommended
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$405.0013 pages
Valid
YD/T 5152-2007 — Acceptance Specification of Optical Fiber Cable in the Leading-in Room
National·Recommended
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$345.0011 pages
Valid
YD/T 5157-2007 — Acceptance Specification of Short Message Center Installation Engineering
National·Recommended
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$505.0014 pages
Superseded
YD/T 5159-2007 — Provisional Acceptance Specification for Mobile Multimedia Messaging Service Center
National·Recommended
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$470.00PDF
Superseded
YD/T 5160-2007 — Acceptance Specification on Indoor Coverage System Installation Engineering for Wireless Communication
National·Recommended
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$385.00PDF
Valid
YD/T 5161-2007 — Interim Provisions of Wireless Network Engineering Design for 900/1800 MHz TDMA Digital Cellular Mobile Communication System in Remote Areas
National·Recommended
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$439.0012 pages
Superseded
YD/T 5162-2007 — Drawing Gallery of Communication Conduit Transect
National·Recommended
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$590.00PDF
Valid
YD/T 723.1-2007 — Laminated Metal Plastic Strip for Communication Cable and Optical Fibre Cable. Part 1: General
National·Recommended
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$135.007 pages
Valid
YD/T 723.2-2007 — Laminated Metal Plastic Strip for Communication Cable and Optical Fibre Cable Part 2: Laminated Aluminium Plastic Strip
National·Recommended
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$115.007 pages
Valid
YD/T 723.3-2007 — Laminated Metal Plastic Strip for Communication Cable and Optical Fibre Cable. Part 3: Laminated Steel Plastic Strip
National·Recommended
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$105.007 pages
Valid
YD/T 723.4-2007 — Laminated Metal Plastic Strip for Communication Cable and Optical Fibre Cable. Part 4: Laminated Copper Plastic Strip
National·Recommended
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$115.007 pages
Valid
YD/T 723.5-2007 — Laminated Metal Plastic Strip for Communication Cable and Optical Fibre Cable. Part 5: Laminated Metal Plastic foil
National·Recommended
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$145.007 pages
Superseded
YD/T 814.4-2007 — Closure for optical fibre cables. Part 4: closure for microduct optical fibre cables
National·Recommended
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$165.00PDF
Valid
YD/T 868-2007 — Technical requirements and measuring methods for additional equipment of telephone set
National·Recommended
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$105.0010 pages
Valid
YD/T 944-2007 — Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications
National·Recommended
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$55.008 pages
Superseded
YD/T 988-2007 — Cross Connecting Cabinet for Communication Optical Cable
National·Recommended
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$175.00PDF
Superseded
YDN 126-2007 — Baseline Requirements for Network and Information Security of Value-added Telecommunication Services
National·Mandatory
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$375.00PDF
Superseded
YS/T 13-2007 — High pure germanium tetrachloride
National·Recommended
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$120.00PDF
Superseded
YS/T 201-2007 — Sheets and bands of precious metals and their alloys
National·Recommended
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$225.00PDF
Valid
YS/T 223-2007 — Selenium
National·Recommended
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$105.005 pages
Superseded
YS/T 231-2007 — Tungsten concentrate
National·Recommended
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$85.00PDF
Superseded
YS/T 235-2007 — Technical requirements for molybdenum concentrate
National·Recommended
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$55.00PDF
Superseded
YS/T 240.1-2007 — Methods for chemical analysis of bismuth concentrate. Determination of bismuth content. Na2EDTA titrimetric method
National·Recommended
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$85.00PDF
Superseded
YS/T 240.10-2007 — Methods for chemical analysis of bismuth concentrate. Determination of aluminium oxide content. Chromazurol S spectrophotometric method
National·Recommended
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$70.00PDF
Superseded
YS/T 240.11-2007 — Methods for chemical analysis of bismuth concentrate. Determination of silver content. Flame atomic absorption spectrometric method
National·Recommended
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$70.00PDF
Superseded
YS/T 240.2-2007 — Methods for chemical analysis of bismuth concentrate. Determination of lead content. Na2EDTA titrimetric method and flame atomic absorption spectrometric method
National·Recommended
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$135.00PDF
Superseded
YS/T 240.3-2007 — Methods for chemical analysis of bismuth concentrate. Determination of silicon dioxide content. Molybdenum blue spectrophotometric method and gravimetric method
National·Recommended
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$85.00PDF
Superseded
YS/T 240.4-2007 — Methods for chemical analysis of bismuth concentrate. Determination of tungsten trioxide content. Thiocyanate spectrophotometric method
National·Recommended
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$55.00PDF
Superseded
YS/T 240.5-2007 — Methods for chemical analysis of bismuth concentrate. Determiantion of molybdenum content. Thiocyanate spectrophotometric method
National·Recommended
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$85.00PDF
Superseded
YS/T 240.6-2007 — Methods for chemical analysis of bismuth concentrate. Determination of iron content. Potassium bichromate titrimetric method
National·Recommended
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$55.00PDF
Superseded
YS/T 240.7-2007 — Methods for chemical analysis of bismuth concentrate. Determination of sulfur content. Combustion-neutralization titrimetric method
National·Recommended
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$70.00PDF
Superseded
YS/T 240.8-2007 — Methods for chemical analysis of bismuth concentrate. Determination of arsenic content. DDTC-Ag spectrophotometric method and the extraction-iodometric method
National·Recommended
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$90.00PDF
Superseded
YS/T 240.9-2007 — Methods for chemical analysis of bismuth concentrate. Determination of lead content. Iodometric method and the flame atomic absorption spectrometric method
National·Recommended
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$85.00PDF
Valid
YS/T 248.1-2007 — Methods for chemical analysis of crude lead. Determination of lead content. Na2EDTA titrimetric method
National·Recommended
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$70.004 pages
Valid
YS/T 248.10-2007 — Methods for chemical analysis of crude lead. Determination of iron content. Flame atomic absorption spectrometric method
National·Recommended
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$55.004 pages
Valid
YS/T 248.2-2007 — Methods for chemical analysis of crude lead. Determination of tin content. Phenylfuorone photometric method and potassium iodate titrimetric method
National·Recommended
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$105.007 pages
Valid
YS/T 248.3-2007 — Methods for chemical analysis of crude lead. Determination of antimony content. Flame atomic absorption spectrometric method
National·Recommended
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$70.004 pages
Valid
YS/T 248.4-2007 — Methods for chemical analysis of crude lead. Determination of arsenic content. Molybdoantimonyarsenate blue photometric method and Extraction-iodometric method
National·Recommended
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$275.007 pages
Valid
YS/T 248.5-2007 — Methods for chemical analysis of crude lead. Determination of copper content. Flame atomic absorption spectrometric method
National·Recommended
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$70.004 pages
Valid
YS/T 248.6-2007 — Methods for chemical analysis of crude lead. Determination of gold and silver content. Fire-assaying method
National·Recommended
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$90.004 pages
Valid
YS/T 248.7-2007 — Methods for chemical analysis of crude lead. Determination of silver content. Flame atomic absorption spectrometric method
National·Recommended
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$70.004 pages
Valid
YS/T 248.8-2007 — Methods for chemical analysis of crude lead. Determination of zinc content. Flame atomic absorption spectrometric method
National·Recommended
Instant delivery (0–9 sec)
$90.004 pages