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BS 2795:1981 Specification for dial test indicators (lever type) for linear measurement standard by BSI Group, 03/31/1981
BS 1000[677]:1981 Universal Decimal Classification. English full edition. Textile industry standard by BSI Group, 03/31/1981
BS 5626-3.1:1981 Cellulosic papers for electrical purposes. Specifications for individual materials. General purpose paper standard by BSI Group, 02/27/1981
BS CECC 30301 024:1981 Harmonized detail specification for fixed aluminium electrolytic capacitors (long-life grade). Non-solid electrolyte. Cylindrical, polar insulated metallic case, clamp or stud mounting screw terminations. Full plus additional assessment level standard by BSI Group, 03/15/1981
BS 6075-12:1981 Methods of sampling and test for sodium hydroxide for industrial use. Determination of copper content standard by BSI Group, 02/27/1981
BS 6075-11:1981 Methods of sampling and test for sodium hydroxide for industrial use. Determination of mercury content (flameless atomic absorption method) standard by BSI Group, 02/27/1981
BS 6075-10:1981 Methods of sampling and test for sodium hydroxide for industrial use. Determination of mercury content (photometric method) standard by BSI Group, 02/27/1981
BS 6075-0:1981 Methods of sampling and test for sodium hydroxide for industrial use. General introduction standard by BSI Group, 02/27/1981
BS 6072:1981 Method for magnetic particle flaw detection standard by BSI Group, 02/27/1981
BS A 275; A 276 [...]:1981 Specification for hexagon self-locking nuts with non-metallic locking inserts. Metric series standard by BSI Group, 02/27/1981
BS 6070-7:1981 Methods of sampling and test for sodium carbonate for industrial use. Determination of copper content standard by BSI Group, 02/27/1981
BS 6070-5:1981 Methods of sampling and test for sodium carbonate for industrial use. Determination of sulphate content standard by BSI Group, 02/27/1981