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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, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 25845-2010 |
Industrial γ-ray level meter 工业用γ射线料位计 |
China National Standards level |
 English PDF |
| GB/T 25982-2010 |
Permissible levels and test methods of bus internal noise 客车车内噪声限值及测量方法 |
China National Standards level |
English PDF |
| GB/T 25514-2010 |
Health informatics - Controlled health terminology - Structure and high-level indicators 健康信息学 健康受控词表 结构和高层指标 |
China National Standards level |
English PDF |
| GB/T 25477-2010 |
Anti-corrosion magnetic trurning column fluid level gauge 防腐磁性翻柱式液位计 |
China National Standards level |
English PDF |
| GB/T 25615-2010 |
Earth-moving machinery - Determination of emission sound pressure level at operator’s position - Dynamic test conditions 土方机械 司机位置发射声压级的测定 动态试验条件 |
China National Standards level |
English PDF |
| GB/T 25614-2010 |
Earth-moving machinery - Determination of sound power level - Dynamic test conditions 土方机械 声功率级的测定 动态试验条件 |
China National Standards level |
English PDF |
| GB/T 25613-2010 |
Earth-moving machinery - Determination of emission sound pressure level at operator’s position - Stationary test conditions 土方机械 司机位置发射声压级的测定 定置试验条件 |
China National Standards level |
English PDF |
| GB/T 25612-2010 |
Earth-moving machinery - Determination of sound power level - Stationary test conditions 土方机械 声功率级的测定 定置试验条件 |
China National Standards level |
English PDF |
| GB/T 14780-2010 |
Earth-moving machinery - Drain，fill and level plugs 土方机械 排液、加液和液位螺塞 |
China National Standards level |
English PDF |
| GB 3836.20-2010 |
Explosive atmospheres - Part 20: Equipment with equipment protection level (EPL) Ga 爆炸性环境 第20部分：设备保护级别（EPL）为Ga级的设备 |
China National Standards level |
English PDF |
| GB/T 25371-2010 |
Foundry machinery - Measurement method of sound pressure level 铸造机械 噪声声压级测量方法 |
China National Standards level |
English PDF |
| GB/Z 25425-2010 |
Declaration of apparent sound power level and tonality values for the wind turbine 风力发电机组 公称视在声功率级和音值 |
China National Standards level |
English PDF |
| GB/T 25153-2010 |
Chemical industry pressure vessel used magnetic-float type level gauge 化工压力容器用磁浮子液位计 |
China National Standards level |
English PDF |
| GB/T 3785.2-2010 |
Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests 电声学 声级计 第2部分：型式评价试验 |
China National Standards level |
English PDF |
| GB/T 3785.1-2010 |
Electroacoustics - Sound level meters - Part 1: Specifications 电声学 声级计 第1部分：规范 |
China National Standards level |
English PDF |
| GB/T 24961-2010 |
Refrigerated light hydrocarbon fluids - Measurement of liquid levels in tanks containing liquefied gases - Float-type level gauges 冷冻轻烃流体 液化气储罐内液位的测量 浮子式液位计 |
China National Standards level |
English PDF |
| GB/T 24960-2010 |
Refrigerated light hydrocarbon fluids - Measurement of liquid levels in tanks containing liquefied gases - Electrical capacitance gauges 冷冻轻烃流体 液化气储罐内液位的测量 电容液位计 |
China National Standards level |
English PDF |
| GB/T 50589-2010 |
Technical code of construction for epoxy resins self-leveling flooring 环氧树脂自流平地面工程技术规范 |
China National Standards level |
English PDF |
| GB/T 24734.11-2009 |
Technical product documentation - Digital product definition data practices - Part 11: levels of geometrical detail 技术产品文件 数字化产品定义数据通则 第11部分：模型几何细节层级 |
China National Standards level |
English PDF |
| GB/Z 24636.4-2009 |
Geometrical product specifications(GPS) - Statistical tolerance - Part 4: Statistical tolerance design based on given confidence levels 产品几何技术规范（GPS） 统计公差 第4部分：基于给定置信水平的统计公差设计 |
China National Standards level |
English PDF |
| GB/T 24661.3-2009 |
Specifications for service and service level classification of third-party e-commerce service platform - Part 3: Modern logistics service platform 第三方电子商务服务平台服务及服务等级划分规范 第3部分：现代物流服务平台 |
China National Standards level |
English PDF |
| GB/T 24661.2-2009 |
Specifications for service and service level classification of third-party e-commerce service platform - Part 2: B2B and B2C service platform 第三方电子商务服务平台服务及服务等级划分规范 第2部分：企业间（B2B）、企业与消费者间（B2C）电子商务服务平台 |
China National Standards level |
English PDF |
| GB/T 12467.1-2009 |
Quality reqirements for fusion welding of metallic materials - Part 1: Criteria for the selection of the appropriate level of quality requirements 金属材料熔焊质量要求 第1部分：质量要求相应等级的选择准则 |
China National Standards level |
English PDF |
| GB/T 6865-2009 |
Codes for levels of language proficiency and foreign language test grades 语种熟练程度和外语考试等级代码 |
China National Standards level |
English PDF |
| GB/T 3222.2-2009 |
Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of environmental noise levels 声学 环境噪声的描述、测量与评价 第2部分：环境噪声级测定 |
China National Standards level |
English PDF |
| GB/T 10156-2009 |
level 水准仪 |
China National Standards level |
English PDF |
| GB/T 12898-2009 |
Specifications for the third and fourth order leveling 国家三、四等水准测量规范 |
China National Standards level |
English PDF |
| GB/T 23655-2009 |
Test for the cure level of compound latex 配合胶乳硫化程度的测定 |
China National Standards level |
English PDF |
| GB/T 12303-2009 |
Measurement of sound pressure level for sound signal appliances by seagoing vessel 海船声号器具的声压级测量 |
China National Standards level |
English PDF |
| GB/T 23282-2009 |
Metal forming machinery - Noise measurement method of sound power levels 锻压机械噪声声功率级测量方法 |
China National Standards level |
English PDF |
| GB/T 23281-2009 |
Metal forming machinery -noise measurement method of sound pressure levels 锻压机械噪声声压级测量方法 |
China National Standards level |
English PDF |
| GB/T 17567-2009 |
Clearance levels for recycle and reuse of steel、aluminum、nickel and copper from nuclear facilities 核设施的钢铁、铝、镍和铜再循环、再利用的清洁解控水平 |
China National Standards level |
English PDF |
| GB 5980-2009 |
Regulation on noise levels on board inland ships 内河船舶噪声级规定 |
China National Standards level |
English PDF |
| GB/T 22715-2008 |
Impulse voltage withstand levels of form-wound stator coils for rotating a.c. machines 交流电机定子成型线圈耐冲击电压水平 |
China National Standards level |
English PDF |
| GB/T 23113-2008 |
Measurement of mercury level in fluorescent lamps 荧光灯含汞量的测定方法 |
China National Standards level |
English PDF |
| GB/T 4935.1-2008 |
Instrument for soil test - Oedometer - Part 1: Single level arm oedometer 土工试验仪器 固结仪 第1部分：单杠杆固结仪 |
China National Standards level |
English PDF |
| GB/T 22519-2008 |
Imaging level meter 合像水平仪 |
China National Standards level |
English PDF |
| GB/T 16817-2008 |
Thermoluminescence dosimeter system for radiotherapy level monitoring 放射治疗水平剂量监测用热释光测量系统 |
China National Standards level |
English PDF |
| GB/T 14399-2008 |
Information technology - Telecommunications and information exchange between systems - High-level data link control procedures - Description of the X.25 LAPB-compatible DTE data link procedures 信息技术 系统间远程通信和信息交换 高级数据链路控制规程 与X.25 LAPB兼容的DTE数据链路规程的描述 |
China National Standards level |
English PDF |
| GB/T 3536-2008 |
Petroleum products - Determination of flash and fire points - Cleveland open cup method 石油产品闪点和燃点的测定 克利夫兰开口杯法 |
China National Standards level |
English PDF |
| GB/T 7421-2008 |
Information technology - Telecommunications and information exchange between systems - High-level data link control (HDLC) procedures 信息技术 系统间远程通信和信息交换 高级数据链路控制（HDLC）规程 |
China National Standards level |
English PDF |
| GB/T 16769-2008 |
Metal-cutting machine tools - Measurement method of sound pressure level 金属切削机床 噪声声压级测量方法 |
China National Standards level |
English PDF |
| GB/T 16306-2008 |
Re-inspection and re-test procedures for assessment of declared quality levels 声称质量水平复检与复验的评定程序 |
China National Standards level |
English PDF |
| GB/T 13969-2008 |
Displacement type level instruments 浮筒式液位仪表 |
China National Standards level |
English PDF |
| GB/T 13638-2008 |
Water level control and alarm devices for industrial boilers 工业锅炉水位控制报警装置 |
China National Standards level |
English PDF |
| GB/T 2828.4-2008 |
Sampling procedures for inspection by attributes - Part 4: Procedures for assessment of declared quality levels 计数抽样检验程序 第4部分：声称质量水平的评定程序 |
China National Standards level |
English PDF |
| GB/T 6378.4-2008 |
Sampling procedures for inspection by variables - Part 4: Procedures for assessment of declared quality levels for mean 计量抽样检验程序 第4部分:对均值的声称质量水平的评定程序 |
China National Standards level |
English PDF |
| GB/T 2828.11-2008 |
Sampling procedures for inspection by attributes Part 11: Procedures for assessment of declared quality levels for small population 计数抽样检验程序 第11部分: 小总体声称质量水平的评定程序 |
China National Standards level |
English PDF |
| GB/T 11923-2008 |
level meter utilizing ionizing radiation 电离辐射物位计 |
China National Standards level |
English PDF |
| GB/T 4854.5-2008 |
Acoustics - Reference zero for the calibration of audiometric equipment- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz 声学 校准测听设备的基准零级 第5部分：8kHz-16kHz频率范围纯音基准等效阈声压级 |
China National Standards level |
English PDF |
| GB/T 6882-2008 |
Acoustics - Determination of sound power levels of noise sources using pressure - Precision methods for anechoic and hemi-anechoic rooms 声学 声压法测定噪声源声功率级 消声室和半消声室精密法 |
China National Standards level |
English PDF |
| GB/T 16538-2008 |
Acoustics - Determination of sound power levels of noise sources using sound pressure - Comparison method in situ 声学 声压法测定噪声源声功率级 现场比较法 |
China National Standards level |
English PDF |
| GB/T 9069-2008 |
Determination of sound power level for noise emitted by reciprocating pump - Engineering method 往复泵噪声声功率级的测定 工程法 |
China National Standards level |
English PDF |
| GB/T 1094.101-2008 |
Power transformers - Part 10.1: Determination of sound levels - Application guide 电力变压器 第10.1部分: 声级测定 应用导则 |
China National Standards level |
English PDF |
| GB/Z 21193.2-2008 |
Fossil-fired steam power stations - Part 2: Drum-level control 矿物燃烧蒸汽发电站 第2部分：汽包水位控制 |
China National Standards level |
English PDF |
| GB/T 22087-2008 |
Arc-welded joints in aluminium and its alloys - Guidance on quality levels for imperfection 铝及铝合金的弧焊接头 缺欠质量分级指南 |
China National Standards level |
English PDF |
| GB/T 22085.2-2008 |
Electron and laser beam welded joints - Guidance on quality levels for imperfections - Part 2:Aluminium and its weldable alloys 电子束及激光焊接接头 缺欠质量分级指南 第2部分：铝及铝合金 |
China National Standards level |
English PDF |
| GB/T 22085.1-2008 |
Electron and laser beam welded joints - Guidance on quality levels for imperfactions - Part 1:Steel 电子束及激光焊接接头 缺欠质量分级指南 第1部分：钢 |
China National Standards level |
English PDF |
| GB/T 16455-2008 |
Bar and frame level meter 条式和框式水平仪 |
China National Standards level |
English PDF |
| GB/T 1671-2008 |
Plasticizers - Determination of flash point - Cleveland open cup method 增塑剂闪点的测定 克利夫兰开口杯法 |
China National Standards level |
English PDF |
| GB/T 17969.3-2008 |
Information technology - Open systems interconnection - Procedures for the operation of OSI registration authorities: Registration of Object identifier arcs beneath the top-level arc jointly administered by ISO and ITU-T 信息技术 开放系统互连 OSI登记机构的操作规程 第3部分：ISO和ITU-T联合管理的顶级弧下的客体标识符弧的登记 |
China National Standards level |
English PDF |
| GB/T 9291-2008 |
Surface active agents - Method of testing of the restraining effect of levelling agents for disperse dyes on dyeing polyester textile under high temperature conditions 表面活性剂 高温条件下分散染料染聚酯织物时匀染剂的抑染作用测试法 |
China National Standards level |
English PDF |
| GB 17888.1-2008 |
Safety of machinery - Permanent means of access to machinery - Part 1: Choice of a fixed means of access between two levels 机械安全 进入机械的固定设施 第1部分：进入两级平面之间的固定设施的选择 |
China National Standards level |
English PDF |
| GB/T 21451.4-2008 |
Petroleum and liquid petroleum products - Measurement of level and temperature in storage tanks by automatic methods - Part 4: Measurement of temperature in atmospheric tanks 石油和液体石油产品 储罐中液位和温度自动测量法 第4部分: 常压罐中的温度测量 |
China National Standards level |
English PDF |
| GB/T 4963-2007 |
Acoustics - Normal equal-loudness-level contours 声学 标准等响度级曲线 |
China National Standards level |
English PDF |
| GB/T 4854.8-2007 |
Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tone and circumaural earphones 声学 校准测听设备的基准零级 第8部分：耳罩式耳机纯音基准等效阈声压级 |
China National Standards level |
English PDF |
| GB/T 21229-2007 |
Acoustics - Determination of sound power levels of noise from air-terminal devices,air-terminal units,dampers and valves by measurement in a reverberation room 声学 风道末端装置、末端单元、风道闸门和阀噪声声功率级的混响室测定 |
China National Standards level |
English PDF |
| GB/T 17248.6-2007 |
Acoustics - Noise emitted by machinery and equipment - Engineering method for the determination of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity 声学 机器和设备发射的噪声 声强法现场测定工作位置和其它指定位置发射声压级的工程法 |
China National Standards level |
English PDF |
| GB/T 21117-2007 |
Magnetostrictive liquid level meter 磁致伸缩液位计 |
China National Standards level |
English PDF |
| GB/T 21111-2007 |
Projection in indoor rooms - Classification of transmitting projection screens and measurement of their transmitted luminance levels 室内放映 透射放映银幕的分类和亮度测定 |
China National Standards level |
English PDF |
| GB/T 21109.3-2007 |
Functional safety-Safety instrumented systems for the process industry sector - Part 3: Guidance for the determination of the required safety integrity levels 过程工业领域安全仪表系统的功能安全 第3部分：确定要求的安全完整性等级的指南 |
China National Standards level |
English PDF |
| GB/T 14805.9-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 9: Security Key and certificate management message (message type-KEYMAN) 行政、商业和运输业电子数据交换（EDIFACT）应用级语法规则(语法版本号:4，语法发布号:1) 第9部分: 安全密钥和证书管理报文(报文类型为KEYMAN) |
China National Standards level |
English PDF |
| GB/T 14805.8-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 8: Associated data in EDI 行政、商业和运输业电子数据交换（EDIFACT） 应用级语法规则(语法版本号:4，语法发布号:1) 第8部分: 电子数据交换中的相关数据 |
China National Standards level |
English PDF |
| GB/T 14805.7-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 7: Security rules for batch EDI (Confidentiality) 行政、商业和运输业电子数据交换（EDIFACT） 应用级语法规则(语法版本号:4，语法发布号:1) 第7部分: 批式电子数据交换安全规则(保密性) |
China National Standards level |
English PDF |
| GB/T 14805.6-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 6: Secure authentication and acknowledgement message(message type - AUTACK) 行政、商业和运输业电子数据交换（EDIFACT） 应用级语法规则(语法版本号:4，语法发布号:1) 第6部分: 安全鉴别和确认报文(报文类型为AUTACK) |
China National Standards level |
English PDF |
| GB/T 14805.5-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 5: Security rules for batch EDI (authenticity, integrity and non-repudiation of 行政、商业和运输业电子数据交换(EDIFACT) 应用级语法规则(语法版本号:4，语法发布号:1) 第5部分: 批式电子数据交换安全规则(真实性、完整性和源抗抵赖性) |
China National Standards level |
English PDF |
| GB/T 21040-2007 |
Fixed capacitors for in electronic equipment - Part 22-1: Blank detail specification: Fixed surface mount multiplayer capacitors of ceramic dielectric,class2 - Assessment level EZ 电子设备用固定电容器 第22-1部分: 空白详细规范 表面安装用2类多层瓷介固定电容器 评定水平 EZ |
China National Standards level |
English PDF |
| GB/T 21038-2007 |
Fixed capacitors for use in electronic equipment - Part 21-1: Blank detail specification: Fixed surface mount multilayer capacitors of ceramic dielectric,class 1 - Assessment level EZ 电子设备用固定电容器 第21-1部分：空白详细规范 表面安装用1类多层瓷介固定电容器 评定水平 EZ |
China National Standards level |
English PDF |
| GB/T 21021-2007 |
RF connector,connector cable assemblies and cable - Intermodulation level measurement 射频连接器、连接器电缆组件和电缆 互调电平测量 |
China National Standards level |
English PDF |
| GB/T 14805.4-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 4: Syntax and service report message for batch EDI (Message type_CONTRL） 行政、商业和运输业电子数据交换（EDIFACT) 应用级语法规则(语法版本号:4，语法发布号:1) 第4部分: 批式电子数据交换语法和服务报告报文(报文类型为CONTRL) |
China National Standards level |
English PDF |
| GB/T 14805.3-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 3: Syntax rules specific to interactive EDI 行政、商业和运输业电子数据交换（EDIFACT) 应用级语法规则(语法版本号:4，语法发布号:1) 第3部分: 交互式电子数据交换专用的语法规则 |
China National Standards level |
English PDF |
| GB/T 14805.2-2007 |
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 2: Syntax rules specific to batch EDI 行政、商业和运输业电子数据交换（EDIFACT) 应用级语法规则(语法版本号:4，语法发布号:1) 第2部分: 批式电子数据交换专用的语法规则 |
China National Standards level |
English PDF |
| GB/T 14805.1-2007 |
Electronic data interchange for administration,commerce andtransport (EDIFACT) - Application level syntax rules (Syntax version number: 4，Syntax release number:1) - Part 1: Syntax rules common to all parts 行政、商业和运输业电子数据交换(EDIFACT) 应用级语法规则(语法版本号: 4，语法发布号:1) 第1部分：公用的语法规则 |
China National Standards level |
English PDF |
| GB/T 20920-2007 |
Electronic level meter 电子水平仪 |
China National Standards level |
English PDF |
| GB 14536.18-2006 |
Automatic electrical controls for household and similar use - Particular requirements for automatic electrical water level controls of the float type for household and similar applications 家用和类似用途电自动控制器 家用和类似应用浮子型水位控制器的特殊要求 |
China National Standards level |
English PDF |
| GB/T 20438.5-2006 |
Functional safety of electrical/electronic/programmable electronic safety-related systems―Part 5: Examples of methods for the determination of safety integrity levels 电气/电子/可编程电子安全相关系统的功能安全 第5部分: 确定安全完整性等级的方法示例 |
China National Standards level |
English PDF |
| GB/T 14367-2006 |
Acoustics―Determination of sound power levels of noise sources―Guidelines for the use of basic standards 声学 噪声源声功率级的测定 基础标准使用指南 |
China National Standards level |
English PDF |
| GB 50168-2006 |
Erection works of electrical installations Code for construction and acceptance of cable levels 电气装置安装工程电缆线路施工及验收规范 |
China National Standards level |
English PDF |
| GB/T 12897-2006 |
Specifications for the first and second order leveling 国家一、二等水准测量规范 |
China National Standards level |
English PDF |
| GB/T 20248-2006 |
Acoustics - Measurement of sound pressure levels in the interior of aircraft during flight 声学 飞行中飞机舱内声压级的测量 |
China National Standards level |
English PDF |
| GB/T 20246-2006 |
Acoustics - Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment - Engineering method 声学 用于评价环境声压级的多声源工厂的声功率级测定 工程法 |
China National Standards level |
English PDF |
| GB/T 16404.3-2006 |
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning 声学 声强法测定噪声源声功率级 第3部分：扫描测量精密法 |
China National Standards level |
English PDF |
| GB 14536.17-2005 |
Automatic electrical controls for household and similar use Part 2:particular requirements for automatic electrical water level sensing controls of the float or electrode-sensor type used in boiler applications 家用和类似用途电自动控制器 第2部分：锅炉器具中使用的浮子型或电极敏感型水位敏感电自动控制器的特殊要求 |
China National Standards level |
English PDF |
| GB/T 14805.10-2005 |
Electronic data interchange for administration,commerce and transport(EDIFACT)-Application level syntax rules-Part 10:Syntax service directories 用于行政、商业和运输业电子数据交换的应用级语法规则 第10部分:语法服务目录 |
China National Standards level |
English PDF |
| GB/Z 19511-2004 |
Industrial，scientific and medical equipment(ISM)--Guidelines for emission levels within the bands designated by the ITU 工业、科学和医疗设备(ISM) 国际电信联盟(ITU)指定频段内的辐射电平指南 |
China National Standards level |
English PDF |
| GB/T 4854.1-2004 |
Acoustics--Reference zero for the calibration of audiometric equipment--Part1:Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones 声学 校准测听设备的基准零级 第1部分:压耳式耳机纯音基准等效阈声压级 |
China National Standards level |
English PDF |
| GB/T 19418-2003 |
Arc-welded joints in steel--Guidance on quality levels for imperfections 钢的弧焊接头 缺陷质量分级指南 |
China National Standards level |
English PDF |
| GB/T 7214-2003 |
Fixed capacitors for use in electronic equipment--Part 15-3:Blank detail specification--Fixed tantalum capacitors with solid electrolyte and porous anode--Assessment level E 电子设备用固定电容器 第15-3部分:空白详细规范 固体电解质和多孔阳极钽电容器 评定水平 E |
China National Standards level |
English PDF |
| GB/T 5994-2003 |
Fixed capacitors for use in electronic equipment--Part 4-1:Blank detail specification--Auminium electrolytic capacitors with non-solid electrolyte--Assessment level E 电子设备用固定电容器 第4-1部分:空白详细规范 非固体电解质铝电容器 评定水平E |
China National Standards level |
English PDF |
| GB/T 4980-2003 |
Determination of sound level for noise emitted by displacement compressors 容积式压缩机噪声的测定 |
China National Standards level |
English PDF |
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