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[PDF] ISO 3332:1975 gratis

Fecha de publicación: 01/07/1975 Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation ISO 3332:1975

[PDF] ISO 3220:1975 gratis

Fecha de publicación: 01/07/1975 Copper and copper alloys — Determination of arsenic — Photometric method ISO 3220:1975

[PDF] ISO 714:1975 gratis

Fecha de publicación: 01/07/1975 Zinc — Determination of iron content — Photometric method ISO 714:1975

[PDF] ISO 3301:1975 gratis

Fecha de publicación: 01/08/1975 Statistical interpretation of data — Comparison of two means in the case of paired observations ISO 3301:1975

[PDF] ISO 2975-2:1975 gratis

Fecha de publicación: 01/08/1975 Measurement of water flow in closed conduits — Tracer methods — Part 2: Constant rate injection method using non-radioactive tracers ISO 2975-2:1975

[PDF] ISO 2047:1975 gratis

Fecha de publicación: 01/08/1975 Information processing — Graphical representations for the control characters of the 7- bit coded character set ISO 2047:1975

[PDF] ISO 2918:1975 gratis

Fecha de publicación: 01/09/1975 Meat and meat products — Determination of nitrite content (Reference method) ISO 2918:1975

[PDF] ISO 3091:1975 gratis

Fecha de publicación: 01/09/1975 Meat and meat products — Determination of nitrate content (Reference method) ISO 3091:1975