资质认证
- ISO 6777:1984
- Water quality — Determination of nitrite — Molecular absorption spectrometric method
- 1984-06-30
- ISO 710-7:1984
- Graphical symbols for use on detailed maps, plans and geological cross-sections — Part 7: Tectonic symbols
- 1984-06-30
- ISO 4102:1984
- Equipment for crop protection — Sprayers — Connection threading
- 1984-05-31
- ISO 5613:1984
- Mining — Drive sprocket assemblies for chain conveyors
- 1984-05-31
- ISO 5670:1984
- Agricultural trailers — Single-acting telescopic tipping cylinders — 25 MPa (250 bar) series — Types 1, 2 and 3 — Interchangeability dimensions
- 1984-05-31
- ISO 7258:1984
- Polytetrafluoroethylene (PTFE) tubing for aerospace applications — Methods for the determination of the density and relative density
- 1984-05-31
- ISO 2262:1984
- General purpose thimbles for use with steel wire ropes — Specification
- 1984-05-31
- ISO 6898:1984
- Open front mechanical power presses — Capacity ratings and dimensions
- 1984-04-30
- ISO 4296-1:1984
- Manganese ores — Sampling — Part 1: Increment sampling
- 1984-04-30
- ISO 6058:1984
- Water quality — Determination of calcium content — EDTA titrimetric method
- 1984-04-30
- ISO 3877-4:1984
- Tyres, valves and tubes — List of equivalent terms — Part 4: Solid tyres
- 1984-04-30
- ISO 7535:1984
- Surface active agents — Detergents for domestic machine dishwashing — Guide for comparative testing of performance
- 1984-04-30
- ISO 3451-3:1984
- Plastics — Determination of ash — Part 3: Unplasticized cellulose acetate
- 1984-04-30
- ISO 5663:1984
- Water quality — Determination of Kjeldahl nitrogen — Method after mineralization with selenium
- 1984-04-30
- ISO 4744:1984
- Copper and copper alloys — Determination of chromium content — Flame atomic absorption spectrometric method
- 1984-04-30
- ISO 5315:1984
- Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation
- 1984-04-30
- ISO 6059:1984
- Water quality — Determination of the sum of calcium and magnesium — EDTA titrimetric method
- 1984-04-30
- ISO 5664:1984
- Water quality — Determination of ammonium — Distillation and titration method
- 1984-04-30
- ISO 5960:1984
- Copper alloys — Determination of cadmium content — Flame atomic absorption spectrometric method
- 1984-04-30
- ISO 6822:1984
- Potatoes, root vegetables and round-headed cabbages — Guide to storage in silos using forced ventilation
- 1984-04-30
