[China Instrument Network Standards Sharing Circle] The National Standards Committee recently issued a notice of the second batch of national standard system revision plans in 2014. It is planned to formulate 672 standards and revise 317 standards. There are 69 mandatory standards, 915 recommended standards, and 5 guiding technical documents.
According to the incomplete statistics of this website, in the second batch of national standards revision plan, a total of 8 countries recommended instrumentation standards need to be formulated, and 4 countries recommended instrumentation standards need to be revised, as shown in the following table.
No.
project name
Revision
Representative standards
Adopt international standards
Complete time
Drafting unit
1
High-voltage energy metering device verification device
Formulation
2016
Harbin Institute of Electrical Instruments, Shandong Jibao Electric Co., Ltd., Chongqing Qianwei Jibao Power Equipment Co., Ltd., etc.
2
Alternating Current Measurement Equipment Particular Requirements Section 304: Static Wattmeter with Electronic Transformer Access
Formulation
2015
Harbin Institute of Electrical Instrument
3
AC measuring equipment Acceptance inspection Part 11: General acceptance test methods
Formulation
IEC 62058-11:2008
2016
Harbin Institute of Electrical Instruments, Hubei Electric Power Company Measurement Center, Zhejiang Institute of Metrology and so on .
4
Alternating Current Measurement Equipment Acceptance Inspection Part 21: Particular Requirements for Electromechanical Active Energy Meters (Levels 0.5, 1 and 2)
Revision
GB/T 3925-1983
IEC 62058-21:2008
2016
Harbin Institute of Electrical Instruments, Hubei Electric Power Company Measurement Center, Zhejiang Institute of Metrology and so on .
5
AC measuring equipment Acceptance inspections - Part 31: Particular requirements for static active energy meters (0.2S, 0.5S, 1 and 2)
Revision
GB/T 17442-1998
IEC 62058-31:2008
2016
Harbin Institute of Electrical Instruments, Hubei Electric Power Company Measurement Center, Zhejiang Institute of Metrology and so on .
6
Industrial inspection infrared camera
Revision
GB/T 19870-2005
2016
Guangzhou Haote Infrared Co., Ltd.
7
Remote Terminal Unit (RTU) Technical Specifications
Formulation
2016
Machinery Industry Instrumentation Integrated Technology and Economic Research Institute
8
Gasoline octane determination octane tester
Formulation
2016
National Petroleum Product Quality Supervision and Inspection Center (Shenyang), Shanghai Shenkai Petroleum Instrument Co., Ltd., Liaoning Province Product Quality Supervision and Inspection Institute
9
Inductively coupled plasma atomic emission spectrometer
Formulation
2016
Steel Research and Testing Technology Co., Ltd.
10
Analytical instrumentation specification
Formulation
2016
Shanghai Haoyu Hengping Scientific Instrument Co., Ltd.
11
Water meter input and output protocol and electronic interface requirements
Formulation
ISO 22158: 2011
2015
Shanghai Industrial Automation Instrument Research Institute
12
Electromagnetic Compatibility Test and Measurement Technology Electrical Fast Transient Burst Immunity Test
Revision
GB/T 17626.4-2008
IEC 61000-4-4: 2012 ED.3.0
2016
Shanghai Industrial Automation Instrument Research Institute
(The form is made by China Instrument Network, please indicate the source)
In July of this year, the National Standardization Management Committee has released the first batch of national standards revision plans in 2014, which includes a total of 24 revisions of relevant standards for instrumentation. Including "Ultrasonic Gas Flowmeter for Measurement of Fluid Flow in Closed Pipeline Part 2: Ultrasonic Gas Flowmeter for Industrial Use", "Transmission Time Measurement Method for Fluid Flow in Closed Pipeline Ultrasonic Liquid Flowmeter", "Industrial Communication Network Fieldbus Specification Type 23: CC-Link IE Specification Part 1: Application Layer Service Definition, Industrial Communication Network Fieldbus Specification Type 23: CC-Link IE Specification Part 2: Application Layer Protocol Specification, Industrial Communication Network Fieldbus Specification Types 23: CC-Link IE Specification Part 3: CC-Link IE Communication Profiles, General Specifications for Smart Pressure Meters, etc. It is basically a standard formulation and is planned for completion in 2016.
Brass Casting Parts
In industrial manufacturing or life, you will see many brass parts, most of which are made by investment casting. For example, many accessories such as brass jewelry, brass pendants, brass ornaments and so on that are common in our lives are produced by investment casting. The casting performance of brass in copper alloys is relatively good, but its shrinkage is relatively large, and it is prone to shrinkage holes, cold cracks, deformation and other problems. It is necessary to reduce the pouring temperature as much as possible in the actual pouring to improve this problem. Of course, there are many other processes to improve this shortcoming, such as selecting a good sand mold, setting a riser, or setting a gating system, etc., which can be improved, and the details are discussed and analyzed according to the structure of the workpiece.
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