CEN CENELEC - Page 505/1255

• Norma Técnica EN 27487-3

  Title: Information processing; data interchange on 130 mm (5.25 in) flexible disk cartridges using modified frequency modulation recording at 7958 ftprad, 1,9 tpmm (48 tpi), on both sides; part 3: track format B (ISO 7487-3, 1st edition 1986)
  Entity: CEN CENELEC
  Subject: Magnetic disks

• Norma Técnica EN 27490

  Title: Dental gypsum-bonded casting investments for gold alloys (ISO 7490:1990)
  Entity: CEN CENELEC
  Subject: Dental materials

• Norma Técnica EN 27491

  Title: Dentistry; dental materials; determination of colour stability of dental polymeric materials (ISO 7491:1985)
  Entity: CEN CENELEC
  Subject: Dental materials

• Norma Técnica EN 27493

  Title: Dentistry; dental operator's stool (ISO 7493:1985)
  Entity: CEN CENELEC
  Subject: Dental equipment

• Norma Técnica EN 27493/AC 1

  Title: Dentistry; dental operator's stool; amendment 1
  Entity: CEN CENELEC
  Subject: Dental equipment

• Norma Técnica EN 27498

  Title: Information processing systems; open systems interconnection; basic reference model (ISO 7498, 1st edition 1984 and its ADD 1:1987)
  Entity: CEN CENELEC
  Subject: Open systems interconnection in general

• Norma Técnica EN 275

  Title: Wood preservatives; determination of the protective effectiveness against marine borers
  Entity: CEN CENELEC
  Subject: Wood-protecting chemicals

• Norma Técnica EN 27501-1

  Title: Identification cards; machine readable travel documents; part 1: machine readable passport (ISO/IEC 7501-1:1991)
  Entity: CEN CENELEC
  Subject: Magnetic storage devices

• Norma Técnica EN 2752

  Title: Aerospace series; nuts, anchor, self locking fixed, two lug, reduced series, with counterbore; classification: 1100 MPa/235 °C
  Entity: CEN CENELEC
  Subject: Nuts

• Norma Técnica EN 27520

  Title: Ferronickel; determination of cobalt content; flame atomic absorption spectrometric method (ISO 7520:1985)
  Entity: CEN CENELEC
  Subject: Ferroalloys

• Norma Técnica EN 27526

  Title: Nickel, ferronickel and nickel alloys; determination of sulfur content; infra-red absorption method after induction furnace combustion (ISO 7526:1985)
  Entity: CEN CENELEC
  Subject: Nickel, chromium and their alloys

• Norma Técnica EN 27527

  Title: Nickel, ferronickel and nickel alloys; determination of sulfur content; iodometric titration method after induction furnace combustion (ISO 7527:1985)
  Entity: CEN CENELEC
  Subject: Nickel, chromium and their alloys

• Norma Técnica EN 2753

  Title: Aerospace series - Nuts, anchor, self-locking, fixed, single lug, with counterbore, in alloy steel, cadmium plated, MoS lubricated - Classification: 1100 MPa (at ambient temperature)/235 °C
  Entity: CEN CENELEC
  Subject: Nuts

• Norma Técnica EN 2754

  Title: Aerospace series - Nuts, anchor, self locking, two lug, floating with counterbore - Classification: 1100 MPa/235 °C
  Entity: CEN CENELEC
  Subject: Nuts

• Norma Técnica EN 2755

  Title: Aerospace series - Bearing, spherical, plain in corrosion resisting steel with self-lubricating liner - Elevated load at ambient temperature - Technical specification
  Entity: CEN CENELEC
  Subject: Components for aerospace construction

• Norma Técnica EN 2756

  Title: Aerospace series - Lamps, incandescent - Test methods
  Entity: CEN CENELEC
  Subject: Aerospace electric equipment and systems

• Norma Técnica EN 27566

  Title: Acoustics; standard reference zero for the calibration of pure-tone bone conduction audiometers (identical with ISO 7566:1987)
  Entity: CEN CENELEC
  Subject: Noise with respect to human beings

• Norma Técnica EN 2757

  Title: Aerospace series - Structural adhesives system - Test method - Determination of the drying and ignition residues of primers
  Entity: CEN CENELEC
  Subject: Adhesives

• Norma Técnica EN 27574-1

  Title: Acoustics; statistical methods for determining and verifying stated noise emission values of machinery and equipment; part 1: general considerations and definitions (ISO 7574-1:1985)
  Entity: CEN CENELEC
  Subject: Noise emitted by machines and equipment

• Norma Técnica EN 27574-2

  Title: Acoustics; statistical methods for determining and verifying stated noise emission values of machinery and equipment; part 2: methods for stated values for individual machines (ISO 7574-2:1985)
  Entity: CEN CENELEC
  Subject: Noise emitted by machines and equipment

• Norma Técnica EN 27574-3

  Title: Acoustics; statistical methods for determining and verifying stated noise emission values of machinery and equipment; part 3: simple (transition) method for stated values for batches of machines (ISO 7574-3:1985)
  Entity: CEN CENELEC
  Subject: Noise emitted by machines and equipment

• Norma Técnica EN 27574-4

  Title: Acoustics; statistical methods for determining and verifying stated noise emission values of machinery and equipment; part 4: methods for stated values for batches of machines (ISO 7574-4:1985)
  Entity: CEN CENELEC
  Subject: Noise emitted by machines and equipment

• Norma Técnica EN 27627-1

  Title: Hardmetals; chemical analysis by flame atomic absorption spectrometry; part 1: general requirements (ISO 7627-1:1983)
  Entity: CEN CENELEC
  Subject: Chemical analysis of metals

• Norma Técnica EN 27627-2

  Title: Hardmetals; chemical analysis by flame atomic absorption spectrometry; part 2: determination of calcium, potassium, magnesium and sodium in contents from 0,001 to 0,02 % (m/m) (ISO 7627-2:1983)
  Entity: CEN CENELEC
  Subject: Chemical analysis of metals

• Norma Técnica EN 27627-3

  Title: Hardmetals; chemical analysis by flame atomic absorption spectrometry; part 3: determination of cobalt, iron, manganese and nickel in contents from 0,01 to 0,5 % (m/m) (ISO 7627-3:1983)
  Entity: CEN CENELEC
  Subject: Chemical analysis of metals

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