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800MHz/2GHz cdma2000數字蜂窩移動通信系統檢測

發布日期: 2024-06-21 17:34:53 - 更新時間:2024年06月29日 15:22

800MHz/2GHz cdma2000數字蜂窩移動通信系統檢測項目報價???解決方案???檢測周期???樣品要求?

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CH 8003-1991坐標格網尺

本標準規定了坐標格網尺的產品分類、技術要求、試驗方法和檢驗規則。t本標準適用于坐標格網尺。t坐標格網尺〔俗稱方眼尺)是主要用于展繪和量測地圖坐標網、圖廓點及控制點的專用直尺。

CH 8004-1991三等標準金屬線紋尺

本標準規定了三等標準金屬線紋尺的產品規格、技術要求、試驗方法和檢驗規則。t本標準適用于長度為1m的雙面刻劃的三等標準金屬線紋尺。t三等標準金屬線紋尺是我國線紋量值傳遞系統規定的線紋標準量具之一,主要用于檢定鋼直尺、四等水準標尺等,也可作為長度量測的量具使用。

JT/T 800-2011公路用鋼網復合型玻璃纖維增強塑料管箱

本標準規定了公路用鋼網復合型玻璃纖維增強塑料管箱(以下簡稱鋼網玻璃鋼管箱)的產品分類、結構尺寸及偏差、技術要求、試驗方法、檢驗規則、標志、包裝、運輸和儲存等內容。 本標準適用于公路用鋼網玻璃鋼管箱。

AQ/T 8006-2018安全生產檢測檢驗機構能力的通用要求

本標準規定了安全生產檢測檢驗機構進行安全生產檢測檢驗能力的通用要求。本標準適用于所有安全生產檢測檢驗機構。本標準用于安全生產檢測檢驗機構建立檢測檢驗管理體系,是確認安全生產檢測檢驗機構能力的依據。

AQ 8007-2013城市軌道交通試運營前安全評價規范

本標準規定了城市軌道交通試運營前安全評價的程序、內容、方法等基本要求,以及城市軌道交通試運營前安全評價報告的編制格式。本標準適用于國內城市軌道交通試運營前安全評價工作。

HJ 800-2016環境空氣 顆粒物中水溶性陽離子(Li+、Na+、NH4+、K+、Ca2+、Mg2+)的測定 離子色譜法

本標準規定了測定環境空氣顆粒物中水溶性無機陽離子(Li<上標+>、Na<上標+>、NH<下標4><上標+>、K<上標+>、Ca<上標2+>、Mg<上標2+>)的離子色譜法。本標準適用于環境空氣顆粒物(包括TSP、PM<下標10>、PM<下標2.5>、降塵等)中6種水溶性陽離子(Li<上標+>、Na<上標+>、NH<下標4><上標+>、K<上標+>、Ca<上標2+>、Mg<上標2+>)的測定。環境空氣顆粒物濾膜樣品,當采樣體積(標準狀態)為60 m<上標3>,提取液體積為100 ml,進樣體積為25 μl時,本方法的檢出限為0.005~0.037 μg/m<上標3>,測定下限為0.020~0.148 μg/m<上標3>;降塵樣品,當取樣量為0.100 g,提取液體積為100 ml,進樣體積為25 μl時,本方法的檢出限為0.003~0.022 mg/g,測定下限為0.012~0.088 mg/g。詳見附錄A。

FZ/T 80003-2006紡織品與服裝 縫紉型式 分類和術語

本標準規定了各種縫紉型式的分類、圖示和標示。雖然沒有包含所有的方面,但解釋了許多常用的縫紉類型。 本標準適用于服裝工業的常用縫紉型式,所有的圖示只表示了縫料布局的截面構造。 本標準應與ISO 4915配合使用。

FZ/T 80011.1-2009服裝CAD電子數據交換格式.第1部分:版樣數據

FZ/T 80011的本部分適用于不同服裝CAD之間,以及CAD/CAPP系統之間進行二維版樣數據的交換,今后制定的三維數據交換標準需與此標準相兼容。本部分定義的版樣數據類型遵照產品數據表達和交換標準STEP,建議將STEP映射到XML(可擴展的標記語言),使用XML文件格式進行版樣數據文件交換。

ITU-R M.1800-2007固定移動定位服務中操作區間在地對空1390-1392 MHz和空對地1430-1432 MHz的MSS饋線保護

This Recommendation provides protection requirements for ground-based receivers of the radiolocationservice with respect to MSS feeder links (Earth-to-space) that may operate in the band 1 390-1 392 MHz aswell as protection requirements for the fixed and the aeronautical mobile service with respect to MSS feederlinks (space-to-Earth) that may operate in the band 1 430-1 432 MHz.

ITU-R M.1800 FRENCH-2007運行在1390-1392 MHz頻段(地對空)和1430-1432 MHz(空對地)頻段的移動衛星業務(MSS)饋線鏈路中的固定,移動和無線電定位業務的保護

La présente Recommandation indique les besoins à satisfaire pour protéger les récepteurs au sol du service de radiolocalisation vis-à-vis des liaisons de connexion du service mobile par satellite (SMS) (Terre vers espace) pouvant fonctionner dans la bande 1 390-1 392 MHz ainsi que les besoins en matière de protection du service fixe et du service mobile aéronautique vis-à-vis des liaisons de connexion du SMS (espace vers Terre) pouvant fonctionner dans la bande 1 430-1 432 MHz.

ITU-R M.1800 SPANISH-2007運行在1390-1392 MHz頻段(地對空)和1430-1432 MHz(空對地)頻段的移動衛星業務(MSS)饋線鏈路中的固定,移動和無線電定位業務的保護

La presente Recomendación establece los requisitos de protección para los receptores basados en tierra del servicio de radiolocalización con relación a los enlacesde conexión del servicio móvil por satélite (SMS) (Tierra-espacio) que pueden funcionar en la banda 1 390-1 392 MHz, así como los requisitos de protección para el servicio fijo y móvil aeronáutico con respecto a los enlaces de conexión del SMS (Tierra-espacio) que pueden funcionar en la banda 1 430-1 432 MHz.

ASTM A800/A800M-2001(2006)奧氏體合金鋼鑄件中鐵素體含量估算的標準實施規程

1.1 This practice covers procedures and definitions for estimating ferrite content in certain grades of austenitic iron-chromium-nickel alloy castings that have compositions balanced to create the formation of ferrite as a second phase in amounts controlled to be within specified limits. Methods are described for estimating ferrite content by chemical, magnetic, and metallographic means. 1.2 The grades covered by this practice are: CF-3, CF-3A, CF-8, CF-8A, CF-3M, CF-3MA, CF-8M, CF-8C, CG-8M, and CH-10. 1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the practice. This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM A800/A800M-2014鑄鋼, 奧氏體合金, 估算其鐵素體含量的標準實施規程

4.1x00a0;The tensile and impact properties, the weldability, and the corrosion resistance of iron-chromium-nickel alloy castings may be influenced beneficially or detrimentally by the ratio of the amount of ferrite to the amount of austenite in the microstructure. The ferrite content may be limited by purchase order requirements or by the design construction codes governing the equipment in which the castings will be used. The quantity of ferrite in the structure is fundamentally a function of the chemical composition of the alloy and its thermal history. Because of segregation, the chemical composition, and, therefore, the ferrite content, may differ from point to point on a casting. Determination of the ferrite content by any of the procedures described in the following practice is subject to varying degrees of imprecision which must be recognized in setting realistic limits on the range of ferrite content specified. Sources of error include the following: 4.1.1x00a0;In Determinations from Chemical Compositionx2014;Deviations from the actual quantity of each element present in an alloy because of chemical analysis variance, although possibly minor in each case, can result in substantial difference in the ratio of total ferrite-promoting to total austenite-promoting elements. Therefore, the precision of the ferrite content estimated from chemical composition depends on the accuracy of the chemical analysis procedure. 4.1.2x00a0;In Determinations from Magnetic Responsex2014;Phases other than ferrite and austenite may be formed at certain temperatures and persist at room temperature. These may so alter the magnetic response of the alloy that the indicated ferrite content is quite different from that of the same chemical composition that has undergone different thermal treatment. Also, because the magnets or probes of the various measuring instruments are small, different degrees of surface roughness or surface curvature will vary the magnetic linkage with the material being measured. 4.1.3x00a0;In Determinations from Metallographic Examinationx2014;Metallographic point count estimates of ferrite percentage may vary with the etching technique used for identification of the ferrite phase and with the number of grid points chosen for the examination, as explained in Test Method E562. 4.2x00a0;The estimation of ferrite percent by chemical composition offers the most useful and most common method of ferrite control during melting of the metal. 4.3x00a0;For most accurate estimate of ferrite percent, a quantitative metallographic method should be used. 1.1x00a0;This practice covers procedures and definitions for estimating ferrite content in certain grades of austenitic iron-chromium-nickel alloy castings that have compositions balanced to create the formation of ferrite as a second phase in amounts controlled to be within specified limits. Methods are described for estimating ferrite content by chemical, magnetic, and metallographic means. 1.2x00a0;The grades covered by this practice are: CF-3, CF-3A, CF-8, CF-8A, CF-3M, CF-3MA, CF-8M, CF-8C, CG-8M, and CH-10. 1.3x00a0;The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconf......

ASTM B800-2005電氣用退火及中溫回火8000系列鋁合金線的標準規范

1.1 This specification covers 8000 series aluminum alloys fabricated into round wires in annealed or intermediate tempers suitable for stranding into conductors or for solid single conductors, usually to be insulated.1.2 The values stated in inch-pound or SI units are to be regarded separately as the standard. The values in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as the standard.Note 1Aluminum alloys capable of meeting the requirements of this specification are listed in .Note 2The alloy and temper designations conform to ANSI H35.1. Unified Numbering System alloy designations are listed in in accordance with Practice E 527.Note 3Certain aluminum alloys may be subject to patent rights. U.S. patents numbers are shown in .This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM B800-2005(2011)8000系列鋁合金電氣線材的退火和中溫回火標準規格

1.1 This specification covers 8000 series aluminum alloys fabricated into round wires in annealed or intermediate tempers suitable for stranding into conductors or for solid single conductors, usually to be insulated. 1.2 The SI values for resistivity are regarded as standard. For all other properties, the inch-pound units are regarded as standard and the SI units may be approximate. Note 18212;Aluminum alloys capable of meeting the requirements of this specification are listed in Table 1. Note 28212;The alloy and temper designations conform to ANSI H35.1. Unified Numbering System alloy designations are listed in Table 1 in accordance with Practice E527. Note 38212;Certain aluminum alloys may be subject to patent rights. U.S. patents numbers are shown in Table 1. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. TABLE 1 Aluminum Alloys Alloy DesignationU.S. Patent Number ANSI-H35.1 UNS 8017A98017... 8030A98030 3711339 8076 A98076 3697260 8130 A98130 ... 8176 A98176 RE 28419 RE 30465 8177A98177 ...

ASTM B800-2005(2015)電氣用8000系列鋁合金絲的標準規格. 退火和中度回火

1.1x00a0;This specification covers 8000 series aluminum alloys fabricated into round wires in annealed or intermediate tempers suitable for stranding into conductors or for solid single conductors, usually to be insulated. 1.2x00a0;The SI values for resistivity are regarded as standard. For all other properties, the inch-pound units are regarded as standard and the SI units may be approximate. Note 1:x00a0;Aluminum alloys capable of meeting the requirements of this specification are listed in Table 1. Note 2:x00a0;The alloy and temper designations conform to ANSI H35.1. Unified Numbering System alloy designations are listed in Table 1 in accordance with Practice E527. Note 3:x00a0;Certain aluminum alloys may be subject to patent rights. U.S. patents numbers are shown in Table 1. 1.3x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

EN ISO 80000-8-2007(錯誤的標準)量和單位.第8部分:聲學

ISO 80000-8 gives names, symbols and definitions for quantities and units of acoustics. Where appropriate,conversion factors are also given.

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