Cancels and replaces ISO Recommendations R 942:1969, R 943:1969 and R 944:1969. Specifies requirements for malleable cast iron and gives a classification on the basis of mechanical properties. An annex gives classification principles.
Gymnastic equipment — Landing mats and surfaces for floor exercises — Determination of hardness and ...
Specifies principle, apparatus and procedure for a method for determination of the parameters mentioned above, in order to ensure that, for competitions and training, mats and surfaces for floor exercises are used, the hardness and impact damping of which lie in a specific range and to reduce the risk of injury to the gymnasts. The test method is based on the analysis of movement during landing…
Paper, board and pulps — Determination of pH of aqueous extracts
Is applicable to all kinds of paper, board and pulps yielding an extract having a conductivity exceeding 0.2 mS/m when determined in accordance with ISO 6587, except for papers used for electrical purposes. For high purity papers used for electrical purposes, the method should be that given in IEC Publication 554-2.
The Standard specifies the following characteristics of the oil. Appearance: Clear, mobile liquid. Colour: Pale yellow to yellowish brown. Odour: Characteristic, resembling that of citral. Relative density at 20/20 °C: 0,885 - 0,905. Refractive index at 20 °C: 1,4830 - 1,4890. Optical rotation at 20 °C: Range from - 3 to + 1 . Miscibility with 70 % (V/V) ethanol at 20 °C: 1 : 3. Carbonyl value:…
Personal eye-protectors — Non-optical test methods
Specifies the optical test methods the requirements for which are given in ISO 4849 to ISO 4853. The other test methods are given in ISO 4855. The following tests are described: test for robustness of the protectors, test for stability at elevated temperature, test for resistance to ultraviolet radiation, test for ignition, test for resistance to corrosion, test for suitability for disinfection,…
Agricultural food products — Determination of crude fibre content — General method
The method consists in boiling with sulphuric acid solution (after any necessary grinding and defatting), and separation and washing of the insoluble residue. Boiling this residue with sodium hydroxide solution, then separation, washing, drying and weighing of the insoluble residue, and determination of the loss in mass on incineration. An annex A specifies methods of extraction of fatty…
Hot-rolled steel sections — Part 13: Tolerances on sloping flange beam, column and channel sections
Specifies a) tolerances for the thickness of the web and the flanges along with a higher mass tolerance given in table 8, column 3 (symbol D for dimensional tolerance), or b) where no tolerances are specified for the thickness of the web and the flanges, tighter mass tolerances given in a table 8, column 2, are applicable (symbol M for mass tolerance).
