1.1
These requirements cover hydrants employed in piping systems supplying water
for fire-protection service.
1.2
Requirements for the installation and use of hydrants covered by these
requirements include, among others, the Standard of the National Fire
Protection Association for Outside Protection, NFPA 24.
Plastics — Determination of residual styrene monomer in polystyrene by gas chromatography
The specified method is applicable both to styrene homopolymers and to butadiene modified polystyrene. It may be used also for the simultaneous determination of other volatile aromatic hydrocarbons in polystyrene. Dissolution of the polymer sample in chloroform or dichloromethane. Precipitation of the polymer by the addition of methanol and injection of a small volume of the remaining solution…
The Standard specifies the following characteristics of the oil. Appearance: Clear, mobile liquid. Colour: Pale yellow to orange-yellow. Odour: Characteristic with a strong note of citral. Relative density at 20/20 °C: 0,872 - 0,897. Refractive index at 20 °C: 1,4830 - 1,4890. Optical rotation at 20 °C: Range from - 3 to + 1 . Carbonyl compounds content, expressed as citral: Minimum 75 %.…
Urea for industrial use — Measurement of colour in Hazen units (platinum-cobalt scale) of a urea-for...
Lays down the principle of the visual comparison of the colour of a solution of the sample in formaldehyde, stabilized at a pH of 10 0.1, with that of colour standards. Expression of the results in terms of Hazen units. For routine control purposes, referring to ISO 2211. The method has also been approved by the IUPAC.
Prints and printing inks — Assessment of light fastness
Is in technical conformity with CEI specification 02-59 of the European Comittee of the Paint and Printing Ink Manufacturers' Associations, and is in agreement with the ISO Recommendations and International Standards on light fastness tests for textiles. Applies to print substrates such as paper, board, metal and plastics, and to all printing processes such as letterpress, litho and gravure…
Paints and varnishes — Notes for guidance on the conduct of natural weathering tests
Specifies the factors which need to be taken into consideration in the selection of methods for the exposure to natural weathering of paint films or systems for the purpose of evaluating their durability. A method is specified which is recommended for the use where no specialized requirements apply. Supplementary information shall be derived from the national standard or shall be the subject of…
