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Database: 365,228(8 Aug 2026)

positive expression

positive expression, Total:128 items.

The international standard classification for "positive expression" includes: Navigation and control equipment , Piping systems , Astronomy. Geodesy. Geography .

The Chinese standard classification for "positive expression" includes: Navigation equipment , Combination grippers , Marine hydraulic/pneumatic elements and accessories , Map printing , Mapping in general .


Professional Standard - Traffic

Ningxia Provincial Standard of the People's Republic of China

Professional Standard - Aviation

Professional Standard - Machinery

Military Standard of the People's Republic of China-General Armament Department

  • GJB 3153-1998 Precision measurement radar calibration and correction
  • GJB 5269-2003 Specification for orthogonal three-way pyramidal fabrics
  • GJB 10227-2021 Radar Correction Command Decoder Specification

Professional Standard-Ships

Group Standards of the People's Republic of China

国家市场监督管理总局、中国国家标准化管理委员会

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Professional Standard - Agriculture

SCC

  • BS 4161-5:1977 Specification for gas meters-Positive displacement diaphragm meters for pressures up to 7 bar
  • CAN/CSA-ISO/IEC 19075-1-2022 Information technology - Guidance for the use of database language SQL - Part 1: XQuery regular expressions
  • DANSK DS/ISO/IEC 19075-1:2021 Information technology – Guidance for the use of database language SQL – Part 1: XQuery regular expressions
  • BS 3064:1959 Sine bars and sine tables (excluding compound tables)
  • AWPA F1-08 Volume and Specific Gravity Correction Tables for Creosote and Creosote Solution (Up to 59% Tar)
  • AWPA F1-95 Volume and Specific Gravity Correction Tables for Creosote and Creosote Solution (Up to 59% Tar)
  • BS PD ISO/IEC TR 19075-1:2011 Information technology. Database languages. SQL technical reports-XQuery regular expression support in SQL
  • NS-EN 644:1993 Paper — Untrimmed sizes — Primary range and supplementary range designation and tolerances — Expression of direction of manufacture
  • NS-EN 644:1999 Paper — Untrimmed sizes — Primary range and supplementary range designation and tolerances, expression of direction of manufacture

American Society for Testing and Materials (ASTM)

  • ASTM D3847-01(2024) Standard Practice for Rubber—Directions for Achieving Subnormal Test Temperatures
  • ASTM D3847-96 Standard Practice for Rubber-Directions for Achieving Subnormal Test Temperatures
  • ASTM E1594-99 Standard Guide for Expression of Temperature

American Society of Mechanical Engineers (ASME)

British Standards Institution (BSI)

Danish Standards Foundation

  • DS/ISO/IEC 19075-1:2021 Information technology – Guidance for the use of database language SQL – Part 1: XQuery regular expressions

Standard Association of Australia (SAA)

Canadian Standards Association (CSA)

  • CSA ISO/IEC 19075-1:2022 Information technology — Guidance for the use of database language SQL — Part 1: XQuery regular expressions

VDE - VDE Verlag GmbH@ Berlin@ Germany

Korean Agency for Technology and Standards (KATS)

International Electrotechnical Commission (IEC)

  • ISO/IEC 19075-1:2021 Information technology - Guidance for the use of database language SQL - Part 1: XQuery regular expressions

PL-PKN

  • PN E91080-1973 Condenser bushings for current transformers with nomina? voltages up to 60 kV and nomina? currents to 1600 A

CZ-CSN

ESDU - Engineering Sciences Data Unit

  • ESDU 89014 C-1993 NORMAL FORCE@ PITCHING MOMENT AND SIDE FORCE OF FOREBODY-CYLINDER COMBINATIONS FOR ANGLES OF ATTACK UP TO 90 DEGREES AND MACH NUMBERS UP TO 5
  • ESDU 89014 D-2004 Normal force@ pitching moment and side force of forebody-cylinder combinations for angles of attack up to 90 degrees and Mach numbers up to 5.

RU-GOST R

  • GOST 18986.9-1973 Semiconductor diodes. Method for measuring pulse direct voltage and forword recovery time

AIA/NAS - Aerospace Industries Association of America Inc.

Institute of Electrical and Electronics Engineers (IEEE)

GSO

United States Navy

German Institute for Standardization

South African Bureau of Standard

BG-BDS

  • BGC EN 644-2000 Paper-Untrimmed sizes-Primary range and supplementary range designation and tolerances,expression of direction of manufacture

European Committee for Standardization (CEN)

Association Francaise de Normalisation

International Organization for Standardization (ISO)

National Aeronautics and Space Administration (NASA)

  • NASA NACA-RM-A54D22-1954 Investigation of the normal force accompanying thrust-axis inclination of the NACA 1.167-(0)(03)-058 and the NACA 1.167-(0)(05)-058 three-blade propellers at forward Mach numbers to 0.90

Spanish Association for Standardization (UNE)

  • UNE-EN 644:1999 PAPER. UNTRIMMED SIZES. PRIMARY RANGE AND SUPPLEMENTARY RANGE DESIGNATION AND TOLERANCES. EXPRESSION OF DIRECTION OF MANUFACTURE.

IEEE - The Institute of Electrical and Electronics Engineers@ Inc.

  • IEEE 173-1959 Standards on Navigation Aids: Direction Finder Measurements (Correction)