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NF C27-225 (07/1978) (R2013) Determination of the aromatic hydrocarbon content of new mineral insulating oils.
NF C26-280 (07/1978) (R2013) Methods of testing insulating materials. Methods of test for the determination of ionic impurities in electrical insulating materials by extraction with liquids.
NF L31-301 (07/1978) (R2008) Ball bearings for control cable pulleys. Dimensions and loads.
NF R11-002 (06/1978) (R2013) Internal combustion engines. Cylinder numbering.
NF R93-903 (05/1978) (R2013) Hexagonal hollow screw-plugs for use on light alloys.
NF R93-905 (05/1978) (R2013) Filling and draining plugs.
NF F56-332 (05/1978) (R2008) Fixed railway installations. Equipment for overhead telecommunication and signalling lines. Square bar steel clamp.
NF F56-331 (05/1978) (R2008) Fixed railway installations. Equipment for overhead telecommunication and signalling lines. Flat steel clamp.
NF F56-330 (05/1978) (R2008) Fixed railway installations. Equipment for overhead telecommunication and signalling lines. Posts, small poles and cross members.
NF F56-334 (05/1978) (R2008) Fixed railway installations. Equipment for overhead telecommunication and signalling lines. Angle bracket for fixing cross-members to wooden poles.
NF F56-335 (05/1978) (R2008) Fixed railway installations. Equipment for overhead telecommunication and signalling lines. Sole plates for cross-members.
NF F56-333 (05/1978) (R2008) Fixed railway installations. Equipment for overhead telecommunication and signalling lines. Angle bracket for securing cross-members to verticals.