Cinematography — Projection reels/spools 75 to 312 mm diameter for 8 mm Type S motion-picture film —...
This International Standard specifies the dimensions for 8 mm Type S motion-picture projection reels/spools of 75 to 312 mm diameter (with the exception of the 75 mm Type No. 7) that are interchangeable on all types of reel-to-reel projection equipment. NOTE - The No. 7 reel (75 mm), although temporarily recognized, will be superseded by that specified in ISO 6033. lt is recommended that new…
For all hard coals two methods are specified: A) The sample is heated in a flask under reflux conditions with boiling toluene. The moisture from the coal is entrained by the toluene vapour and carried to a condenser fitted with a graduated receiver. The water then separates in the receiver, to from the lower layer, whilst the excess toluene is returned to the destillation flask by means of an…
The document gives equivalent terms and defines some of the relevant terms used in the chemical technology of this product. - Cancels and replaces ISO Recommendations R 1542-1971 and R 1543-1971 and constitutes their technical revision.
Light olefins for industrial use — Determination of impurities by gas chromatography — General consi...
Relates particularly to ethylene (ethene), propylene (propene) and butadiene (1,3-butadiene). Lists the apparatus to be used, describes sampling and procedure and provides information on the expression of results and the data to be included in the test report.
Butadiene for industrial use — Determination of hydrocarbon impurities — gas chromatographic method
Covers a method based on the selection of a gas chromatography column allowing the separation of the impurities to be determined. A gaseous test portion is passed through this column and the peaks obtained are detected by flame ionization and compared with those derived from an external standard. Columns and operating conditions having been found suitable for such a test are indicated in Annex A…
Ethylene for industrial use — Determination of hydrocarbon impurities — Gas chromatographic method
Covers a method based on the selection of a gas chromatography column allowing the separation of the impurities to be determined. A gaseous test portion is passed through this column and the peaks obtained are detected by flame ionization and compared with those derived from an external standard. Columns and operating conditions having been found suitable for such a test are indicated in Annex A…
Propylene for industrial use — Determination of hydrocarbon impurities — Gas chromatographic method
Covers a method based on the selection of a gas chromatography column allowing the separation of the impurities to be determined. A gaseous test portion is passed through this column and the peaks obtained are detected by flame ionization and compared with those derived from an external standard. Uses two types of columns, one for the determination of methane, ethane and acetylene (adsorption…
