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SJ 20852-2002Security label for the military information transfer (English PDF)

军用通信系统音质MOS评价测试语音数据库

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Mandatory

Issue date

January 1, 2002

Implementation date

January 1, 2002

Scope

SJ 20852-2002 is the English-translated version of 军用通信系统音质MOS评价测试语音数据库.

SJ 20852-2002 is the Chinese standard "Security label for the military information transfer".

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Document preview — SJ 20852-2002

Contents

  • [Preview only]
  • 1 Scope
  • 2 Normative References
  • 2.1 Terms
  • 3 Terms and Definitions
  • 4 Overview
  • 4.1 General requirements
  • 5 Technical Requirements
  • 6 Calibration conditions
  • 6.1 Environmental conditions
  • 6.2 Measurement standards and other equipment
  • 7 Calibration items and calibration methods
  • 7.1 Calibration Items
  • 7.2 Calibration method
  • 8 Expression of calibration results
  • 9 Recalibration interval

1 Foreword

SJ 20852-2002 was issued by Ministry of Industry and Information Technology on 12 December 2002.

The SJ prefix, without a suffix, marks a mandatory standard: within its scope, compliance is required.

The document runs to 8 pages in English translation.

2 Scope Preview

SJ 20852-2002 carries no ICS number and no Chinese Standard Classification code.

This catalogue holds 1,427 other SJ standards.

Of the 236 SJ standards that do carry an ICS number, 134 (57%) fall under ICS 31, in the field of electronics.

3 About this standard

Sector: Electronics Industry Standard

Issued by: Ministry of Industry and Information Technology

English translation: about 8 pages (approximate)

Chinese original: about 8,875 characters

4 Related standards

Standards on related subjects:

JB 2293-1978 — Wind tunnel test method of radiator of automobile and tractor

5 Classification and status

Prefix SJ: mandatory standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.

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SJ 20852-2002

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