资质认证
- IEC 60667-1:1980
- Specification for vulcanized fibre for electrical purposes. Part 1: Definitions and general requirements
- 1979-12-31
- IEC 60092-304:1980
- Electrical installations in ships - Part 304: Equipment - Semiconductor convertors
- 1979-12-31
- IEC 60092-303:1980
- Electrical installations in ships - Part 303: Equipment - Transformers for power and lighting
- 1979-12-31
- IEC 60665:1980
- A.C. electric ventilating fans and regulators for household and similar purposes
- 1979-12-31
- IEC 60154-2:1980
- Flanges for waveguides. Part 2: Relevant specifications for flanges for ordinary rectangular waveguides
- 1979-12-31
- IEC 60471:1977/AMD1:1980
- Amendment 1 - Dimensions of clevis and tongue couplings of string insulator units
- 1979-12-31
- ISO 6053:1979
- Photography — Shutter cable release tip and socket — Dimensions
- 1979-11-30
- ISO 3952-3:1979
- Kinematic diagrams — Graphical symbols
- 1979-11-30
- ISO 4243:1979
- Cinematography — Picture image area and photographic sound record on 16 mm motion-picture release prints — Positions and dimensions
- 1979-11-30
- ISO 4637:1979
- Rubber-coated fabrics — Determination of rubber-to-fabric adhesion — Direct tension method
- 1979-11-30
- ISO 4327:1979
- Non-ionic surface active agents — Polyalkoxylated derivatives — Determination of hydroxyl value — Phthalic anhydride method
- 1979-11-30
- ISO 787-23:1979
- General methods of test for pigments and extenders — Part 23: Determination of density (using a centrifuge to remove entrained air)
- 1979-11-30
- ISO 787-21:1979
- General methods of test for pigments and extenders — Part 21: Comparison of heat stability of pigments using a stoving medium
- 1979-11-30
- ISO 5022:1979
- Shaped refractory products — Sampling and acceptance testing
- 1979-11-30
- ISO 4615:1979
- Plastics — Unsaturated polyesters and epoxide resins — Determination of total chlorine content
- 1979-11-30
- ISO 4131:1979
- Road vehicles — Dimensional codes for passenger cars
- 1979-10-31
- ISO 244:1979
- Aircraft — Sealing wire
- 1979-10-31
- ISO 4369:1979
- Measurement of liquid flow in open channels — Moving-boat method
- 1979-09-30
- ISO 5969:1979
- Ground thread taps for pipe threads G series and Rp series — Tolerances on the threaded portion
- 1979-09-30
- ISO 5941:1979
- Compressors, pneumatic tools and machines — Preferred pressures
- 1979-08-31
