What does GB7635 87 mean

GB7635-87 is the national standard for the classification of industrial and agricultural products (commodities and materials) and the national standards are as follows:

1 1 Purpose.

In order to improve the level of China's economic management, we should establish a unified and scientific national economy.

This standard is specially formulated for the accounting system and the realization of automatic management of national economic information.

1 2 Scope of Application.

1 2 1 This standard is an important basic standard for unified accounting of the national economy, which is used for planning, statistics, accounting, business and other work.

1 2 2 This standard is an important basic standard for the national economic information system, and is the common language for information exchange among the economic information systems in the country

2 Classification principles.

2 1 The classification objects of this standard are industrial and agricultural products (commodities and materials) produced in China. Imported commodities (materials), except for a few raw materials, are not included in the scope of this standard.

2 2 Based on scientific classification, according to the basic attributes of industrial and agricultural products (commodities, materials), and appropriately take into account the needs of departmental management.

2 3 Classification first meets the needs of modern management and takes due care of the current management level.

2 4 In order to unify the classification of industrial and agricultural products, commodities and materials in the country, taking into account the requirements of the field of production and the field of circulation.

2 5 This standard is compatible with relevant standards.

3 Coding Methods.

3 1 This standard is a hierarchical structure, divided into four layers (excluding categories), each layer is marked by two Arabic numerals.

Denote. For easy searching, categories are set up and their order is indicated by English letters.

3 2 The ** of each layer generally starts from "01" and is arranged in ascending order, up to "99". However, there are special provisions for the preparation of the third layer **, see 3 6.

3 3 The number "99" in each level indicates the containment category. When the same level is divided into several sections, the containment category of each zone is generally represented by the last digit of "9".

3 4 th.

When the categories of the first, second and third layers are no longer subdivided, "0" is added after their ** until the eighth place.

3 5 Appropriate blank codes are left at each level for adding or adjusting categories.

3 6 The third floor has a "listing area", the categories of which are indicated by "01" to "09". When there is no category, the third level of the main classification area is generally written from "10". The categories of the listing area are marked with a " " sign before **.

4 Provisions relating to "listing areas".

4 1 Settings for the "Open Area" category.

In order to meet the special needs of management, this standard has an "open area" on the third floor. There are two types of categories in this area:

a The products (commodities and materials) contained in the main classification area are reclassified according to different attributes, for example, for extra-thick steel plates, they have been classified according to steel types in the main classification area, and in the listing area, they are divided into "extra-thick steel plates for boilers" and "extra-thick steel plates for pressure vessels" according to their uses;

National standards. National industrial and agricultural products (commodities. Materials) classification and ** national standards are divided into mandatory national standards (GB) and recommended national standards (GB T).

It shall be formulated and issued by the National Standardization Committee, and shall be complied with by relevant production, manufacturing, management and other institutions.

The number of the national standard consists of the code of the national standard, the sequence number of the national standard and the year number of the national standard (using the last two digits of the year of issuance).

If you don't understand what the national standard is, learn it.

What does GB T7676-98 mean.

Hello, GB T7676-98 What does it mean: GB T National Recommended Standard 7676 is a sequence number and has no specific meaning. 98 is the year number, released in 1998.

This is a series of standards that includes the following sections: GB T Direct Acting Analog Indicator Measuring Instruments and Their Accessories Part 9: Recommended Test Methods GB T Direct Acting Analog Measuring Instruments and Accessories Thereof Part 8:

Special requirements for accessories GB t Direct Action Analog Indication Electrical Measuring Instruments and Accessories Thereof Part 7: Special GB T Direct Acting Analog Indicator Electrical Measuring Instruments and Accessories Thereof for Multifunctional Instruments Part 6: Resistance Meters (Impedance Meters GB T Direct Action Analog Indicator Electrical Measuring Instruments and Their Accessories Part 5:

Phase Meters, Power Meters Due to GB T Direct Action Analog Indicator Electrical Measuring Instruments and Their Accessories Part 4: Special Requirements for Frequency Potato Tables GB T Direct Action Analog Indicator Electric Measuring Instruments and Their Accessories Part 3: Power Meters and Reactive Power GB T Direct Action Analog Indicator Electric Measuring Instruments and Their Accessories Part 2:

Ammeters and voltmetersGBT Direct Action Analog Indicator Electrical Measuring Instruments and Their Accessories Part 1: Definitions and General Requirements.

The national recommended standard, the standard number is 767, drafted in 1998.

GB T National Recommended Standards.

7676 is a sequential number and has no specific meaning.

98 is the year number, released in 1998.

This is a series of standards that include the following sections:

GB T Direct Acting Analog Indicator Electrical Measuring Instruments and Accessories Thereof Part 8: Special Requirements for Accessories.

GB T Direct Acting Analog Indicator Electrical Measuring Instruments and Accessories Thereof Part 7: Features of Multifunctional Instruments.

GB T Direct Acting Analog Indicator Electrical Measuring Instruments and Accessories Thereof Part 6: Resistance Meters (Impedance Meters.

GBT Direct-Acting Analog Indicator Measuring Instruments and Accessories Part 5: Phase Meters, Power Factors.

GB T Direct Acting Analog Indicator Electrical Measuring Instruments and Accessories Part 4: Special Requirements for Frequency Meters.

GB T Direct Acting Analog Indicator Electrical Measuring Instruments and Accessories Thereof Part 3: Power Meters and Reactive Power.

GB T Direct Acting Analog Indicator Measuring Instruments and Accessories Thereof Part 2: Ammeters and Voltmeters.

GB T Direct Acting Analog Indicator Electrical Measuring Instruments and Accessories Part 1: Definitions and General Requirements.

In the number given, the date number is incorrect.

The correct standard number should be GB T 7306-1987 "Pipe Threads Sealed with Threads".

This standard has long been obsolete and replaced by the following two standards:

GB T Sealing Pipe Thread Part 1: Cylindrical Female Thread and Conical External Thread;

GB T Seal Pipe Threads Part 2: Conical Female Threads and Conical External Threads

GB T This part is Part 1 of GB T7233.

This part is modified to adopt ISO 4992-1:2006, and the standard structure and technical content are basically the same as ISO 4992-1:2006.

Compared with ISO4992-1:2006, the normative reference documents have changed more, only ISO5577 is retained, and the other 9 items have been adjusted accordingly according to the situation in China.

For ease of use, the following changes have been made to this section:

- Some of the formatting formats have been modified according to Chinese customs;

- Replace some of the expressions applicable to international standards with expressions applicable to national standards;

- With a decimal point. Instead of a comma as a decimal point,.

This part replaces the corresponding part in GB T7233-1987 "Ultrasonic Flaw Detection and Quality Rating Methods for Steel Castings".

Compared with GB T7233-1987, the main technical changes in this part are as follows:

- the scope of application of the standard has been revised (see Chapter 1);

- Added ordering information (see;

- Revised quality level requirements (see;

- modified detection methods;

- New Appendices A, B, C and D have been added, and Appendices A, B and C of the original standard have been deleted.

Hello, your problem, I seem to have encountered it before, the following is my original solution ideas and methods, I hope to help you, if there is a mistake, I hope to forgive me! This standard was replaced by GB T 11352-1989 Cast carbon steel for general engineering at the same time as GB T 5676-1985 Cast carbon steel for general engineering.

The GB T 11352-1989 cast carbon steel parts for general engineering were replaced by GB T 11352-2009 cast carbon steel parts for general engineering.

GBT 11352-2009 is a merger and modification of ISO3755:1991 and ISO4990:2003, and technical adjustments.

GBT 11352-2009 General Engineering. Size:

GB7337-87 is a mandatory standard in China, and the full name of the standard is "GB 7337-1987 Detailed Specification for Electronic Devices CT52 Disc Core-Piercing Porcelain Dielectric Capacitors (Available for Certification)".

GB 7337-1987 is a CT52 disc through-core porcelain dielectric capacitor of "Detailed Specification for Electronic Devices". This specification is now obsolete. See the table of contents in the figure below.

The standard number entered in the question is a wrong character. It should be GB T 17743-2017.

GB T 17743-2017 "Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment".

1 Scope. This standard applies to RF disturbances emitted (radiated and conducted) from the following equipment:

All lighting devices used for lighting that have the basic function of generating and/or distributing light and are intended to be connected to a low-voltage power supply or to operate on batteries;

One of the main functions is the illumination part in the multifunctional apparatus of lighting;

Stand-alone ancillary equipment dedicated to lighting fixtures;

ultraviolet and infrared radiation equipment;

neon advertising sign lights;

road or flood lighting intended for outdoor use;

Transport lighting (installed on cars and trains).

The following image is a full screenshot of the "1 Range" of this standard: