资质认证 ISO 2164:1975 Pulses — Determination of glycosidic hydrocyanic acid 1975-08-31 ISO 1769:1975 Laboratory glassware — Pipettes — Colour coding 1975-08-31 ISO 1772:1975 Laboratory crucibles in porcelain and silica 1975-08-31 ISO 1775:1975 Porcelain laboratory apparatus — Requirements and methods of test 1975-08-31 ISO 3357:1975 Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method 1975-08-31 ISO 641:1975 Laboratory glassware — Interchangeable spherical ground joints 1975-08-31 ISO 3371:1975 Modular units for machine tool construction — Rotary tables and multi-sided centre bases for rotary tables 1975-08-31 ISO 3091:1975 Meat and meat products — Determination of nitrate content (Reference method) 1975-08-31 ISO 2047:1975 Information processing - Graphical representations for the control characters of the 7- bit coded character set 1975-07-31 ISO 2047:1975 Information processing - Graphical representations for the control characters of the 7- bit coded character set 1975-07-31 ISO 2975-2:1975 Measurement of water flow in closed conduits — Tracer methods — Part 2: Constant rate injection method using non-radioactive tracers 1975-07-31 ISO 2047:1975 Information processing — Graphical representations for the control characters of the 7- bit coded character set 1975-07-31 ISO 3465:1975 Hand taper pin reamers 1975-07-31 ISO 3301:1975 Statistical interpretation of data — Comparison of two means in the case of paired observations 1975-07-31 ISO 3426:1975 Sulphur for industrial use — Determination of loss in mass at 80 degrees C 1975-06-30 ISO 714:1975 Zinc — Determination of iron content — Photometric method 1975-06-30 ISO 696:1975 Surface active agents — Measurement of foaming power — Modified Ross-Miles method 1975-06-30 ISO 3409:1975 Passenger cars — Lateral spacing of foot controls 1975-06-30 ISO 3220:1975 Copper and copper alloys — Determination of arsenic — Photometric method 1975-06-30 ISO 3476:1975 Modular units for machine tool construction — Tenon drive and flanges for mounting multi- spindle heads 1975-06-30
