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Database: 365,228(8 Aug 2026)

doubled

doubled, Total:74 items.

The international standard classification for "doubled" includes: Chemical analysis of metals , Other iron and steel products , Other methods of testing of metals , Special measuring equipment for use in telecommunications , Electroacoustics , Iron and steel products in general , Farming and forestry , Other standards related to farming and forestry , Spinning, twisting and texturing machines , Textile machinery , Other textile machinery , Musical instruments .

The Chinese standard classification for "doubled" includes: Metal processing property test method , Metallographic testing method , Other electronic instrument and equipment , Acoustic Measurement , Forest management technology , Forestry chemical raw material , Economic forest and byproduct , Spinning machinery and apparatus , Textile machinery spare parts , Musical instruments , Radio Measurement .


Hubei Provincial Standard of the People's Republic of China

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

  • GB/T 3241-2010 Electroacoustics - Octave-band and fractional-octave-band filters
  • GB/T 3246.2-2000 Wrought Aluminum and Aluminum Alloys Products Inspection Method for Structure
  • GB/T 14999.5-1994 Photomicrographs and photomacrographs for evaluating of heat - Resisting superalloys
  • GB/T 3246.2-2012 Inspection method for structure of wrought aluminum and aluminum alloy products - Part 2: Inspection method for macrostructure
  • GB 50196-1993 Code for design of high & medium expansion foam systems
  • GB/T 14999.1-2012 Test method for superalloys - Part 1: Verification of longitudinal macro-structures and defect by etch
  • GB 50196-1993(2002) Code for design of high & medium expansion foam systems
  • GB/T 3241-1998 Octave-band and fractional-octave-band filters

Professional Standard - Forestry

Taiwan Provincial Standard of the People's Republic of China

Professional Standard - Textile

Professional Standard - Agriculture

Professional Standard - Light Industry

Group Standards of the People's Republic of China

National Metrological Verification Regulations of the People's Republic of China

  • JJG 449-2001 Verification Regulation of Octave-Band and One-Third-Octave Band Filters
  • JJG 449-2014 Octave-Band and Fractional-Octave-Band Filters

Institute of Electrical and Electronics Engineers (IEEE)

  • NFPA (Fire) 11 Standard for Low-, Medium-, and High-Expansion Foam, 2021 Edition

National Fire Protection Association (NFPA)

  • NFPA 11 AMD 1-2020 Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 12/23/2020)
  • NFPA 1-2021 AMD 3 Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 12/23/2020)
  • NFPA 1-2021 AMD 2 Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 12/23/2020)
  • NFPA 11-2016 CORR Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 12/23/2020)
  • NFPA 1-2021 AMD 1 Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 12/23/2020)
  • NFPA 11-2021 Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 11/22/2020)
  • NFPA 1-2021 AMD 4 Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 12/23/2020)
  • NFPA 1-2021 Standard for Low-, Medium-, and High-Expansion Foam (Effective Date: 12/23/2020)

SCC

American National Standards Institute (ANSI)

TR-TSE

ESDU - Engineering Sciences Data Unit

Japanese Industrial Standards Committee (JISC)

International Electrotechnical Commission (IEC)

  • IEC 60225:1966 Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations

GSO

Association Francaise de Normalisation

  • NF C97-010:1996 Electroacoustics. Octave-band and fractional-octave-band filters.
  • NF C97-010/A1:2002 Electroacoustics - Octave-band and fractional-octave-band filters.

Danish Standards Foundation

European Committee for Standardization (CEN)

  • prEN 60225-1992 Electroacoustics; octave-band and fractional octave-band filters

IETF - Internet Engineering Task Force

  • RFC 4480-2006 RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)

KR-KS

DIN

CZ-CSN

British Standards Institution (BSI)

  • BS EN 61260:1996 Electroacoustics - Octave-band and fractional-octave-band filters

South African Bureau of Standard

  • SANS 61260:2009 Electro-acoustics - Octave-band and fractional-octave-band filters

Spanish Association for Standardization (UNE)

ECMA - European Association for Standardizing Information and Communication Systems

Australian/New Zealand Standard (AU-AS/NZS)

RU-GOST R

Korean Agency for Technology and Standards (KATS)

German Institute for Standardization