资质认证
- ISO 749:1977
- Oilseed residues — Determination of total ash
- 1977-09-30
- ISO 119:1977
- Plastics — Phenol-formaldehyde mouldings — Determination of free phenols — Iodometric method
- 1977-09-30
- ISO 120:1977
- Plastics — Phenol-formaldehyde mouldings — Determination of free ammonia and ammonium compounds — Colorimetric comparison method
- 1977-09-30
- ISO 387:1977
- Hydrometers — Principles of construction and adjustment
- 1977-08-31
- ISO 4321:1977
- Washing powders — Determination of active oxygen content — Titrimetric method
- 1977-08-31
- ISO 3801:1977
- Textiles — Woven fabrics — Determination of mass per unit length and mass per unit area
- 1977-08-31
- ISO 4324:1977
- Surface active agents — Powders and granules — Measurement of the angle of repose
- 1977-08-31
- ISO 4746:1977
- Oxygen-free copper — Scale adhesion test
- 1977-07-31
- ISO 3881:1977
- Building construction — Modular co-ordination — Stairs and stair openings — Co-ordinating dimensions
- 1977-07-31
- ISO 3857-1:1977
- Compressors, pneumatic tools and machines — Vocabulary — Part 1: General
- 1977-07-31
- ISO 839-2:1977
- Milling machine arbors with 7/24 tapers — Part 2: Accessories
- 1977-07-31
- ISO 3947:1977
- Starches, native or modified — Determination of total fat content
- 1977-07-31
- ISO 4316:1977
- Surface active agents — Determination of pH of aqueous solutions — Potentiometric method
- 1977-07-31
- ISO 4346:1977
- Steel wire ropes for general purposes — Lubricants — Basic requirements
- 1977-07-31
- ISO 5170:1977
- Machine tools — Lubrication systems
- 1977-06-30
- ISO 3659:1977
- Fruits and vegetables — Ripening after cold storage
- 1977-06-30
- ISO 3998:1977
- Textiles — Determination of resistance to certain insect pests
- 1977-06-30
- ISO 4319:1977
- Surface active agents — Detergents for washing fabrics — Guide for comparative testing of performance
- 1977-06-30
- ISO 4614:1977
- Plastics — Melamine-formaldehyde mouldings — Determination of extractable formaldehyde
- 1977-06-30
- ISO 3963:1977
- Fertilizers — Sampling from a conveyor by stopping the belt
- 1977-06-30
