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Position: Chinese Standard in English/GB/T 321-2005
GB/T 321-2005   Preferred numbers -Series of preferred numbers (English Version)
Standard No.: GB/T 321-2005 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 1000 words Price(USD):154.0 remind me the price change

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Implemented on:2005-12-1 Delivery: via email in 1 business day
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Standard No.: GB/T 321-2005
English Name: Preferred numbers -Series of preferred numbers
Chinese Name: 优先数和优先数系
Chinese Classification: A20    Comprehensive Technology
Professional Classification: GB    National Standard
Issued by: CSBTS
Issued on: 2005-5-16
Implemented on: 2005-12-1
Status: valid
Superseding:GB/T 321-1980 Preferred numbers and preferred number series
Language: English
File Format: PDF
Word Count: 1000 words
Price(USD): 154.0
Delivery: via email in 1 business day
1 Scope This standard specifies the series of preferred numbers. This standard is applicable to grading of various quantity values, especially in determining product parameters or parameter series, and it shall be selected in accordance with basic series values specified in this standard. 2 Terms and Definitions 2.1 series of preferred numbers preferred numbers are the conventionally rounded off term values of geometrical series, including the integral powers of 10 and having as ratios the following factors: and , in accordance with Table 1 - Basic Series and Table 2 - Complementary R80 Series set out for the 1 to 10 range, the series of preferred numbers being unlimited in both directions, the values of the terms in other decimal ranges are obtained by multiplying the values in the tables by positive or negative integral powers of 10
Foreword I 1 Scope 2 Terms and Definitions 3 Preferred Numbers
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*GB/T 5584.1-2020 Rectangular copper or aluminium and its alloy wires for electrical purposes—Part 1:General
*GB/T 5585.1-2018 Copper or aluminium and its alloy bus bars for electrical purposes—Part 1:Copper and copper alloy bus bars
*GB/T 5585.2-2018 Copper or aluminium and its alloy bus bars for electrical purposes—Part 2:Aluminium and aluminium alloy bus bars
*GB/T 12361-2016 Steel die forgings―General specification
*JB/T 6169-2006 Metal Bellows
Code of China
Standard
GB/T 321-2005  Preferred numbers -Series of preferred numbers (English Version)
Standard No.GB/T 321-2005
Statusvalid
LanguageEnglish
File FormatPDF
Word Count1000 words
Price(USD)154.0
Implemented on2005-12-1
Deliveryvia email in 1 business day
Detail of GB/T 321-2005
Standard No.
GB/T 321-2005
English Name
Preferred numbers -Series of preferred numbers
Chinese Name
优先数和优先数系
Chinese Classification
A20
Professional Classification
GB
ICS Classification
Issued by
CSBTS
Issued on
2005-5-16
Implemented on
2005-12-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 321-1980 Preferred numbers and preferred number series
Language
English
File Format
PDF
Word Count
1000 words
Price(USD)
154.0
Keywords
GB/T 321-2005, GB 321-2005, GBT 321-2005, GB/T321-2005, GB/T 321, GB/T321, GB321-2005, GB 321, GB321, GBT321-2005, GBT 321, GBT321
Introduction of GB/T 321-2005
1 Scope This standard specifies the series of preferred numbers. This standard is applicable to grading of various quantity values, especially in determining product parameters or parameter series, and it shall be selected in accordance with basic series values specified in this standard. 2 Terms and Definitions 2.1 series of preferred numbers preferred numbers are the conventionally rounded off term values of geometrical series, including the integral powers of 10 and having as ratios the following factors: and , in accordance with Table 1 - Basic Series and Table 2 - Complementary R80 Series set out for the 1 to 10 range, the series of preferred numbers being unlimited in both directions, the values of the terms in other decimal ranges are obtained by multiplying the values in the tables by positive or negative integral powers of 10
Contents of GB/T 321-2005
Foreword I 1 Scope 2 Terms and Definitions 3 Preferred Numbers
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Keywords:
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