Rechercher

Specifies the method used to determine the in place density of soils using a standardized sand to measure the volume of the test hole. The use of the apparatus described herein is limited to the testing of soils containing particle sizes no greater than 56 mm in diameter. For soils containing particles greater than 56 mm in diameter, a larger apparatus of similar proportions must be used.

A liquid sample obtained at low temperature is vaporized and then passed through a chromatographic column which permits the separation of the oligomers. The detection is performed by flame ionization an the peaks obtained are compared with those derived from an external standard. The method is applicable to propylene having propene dimers (hexenes) contents greater than 20mg/kg and propene…

The active TBC in a test portion is extracted by mixing with a solution containing m-nitrophpenol (as the internal standard) and evaporating the butadiene. The TBC and m-nitrophenol are separated by high-performance liquid chromatography and detected by UV: The peak areas or peak heights are measured and the TBC content is determined by using a calibration graph. The polymerization inhibitor TBC…

The Standard specifies the following characteristics of the oil. Appearance: Viscous liquid. Colour: Brown to reddish brown. Odour: Characteristic. Relative density at 20/20 °C: 0,952 - 0,966. Refractive index at 20 °C: 1,5050 - 1,5080. Optical rotation at 20 °C: Range from - 50 to - 32 . Miscibility with 90 % (V/V) ethanol at 20 °C: 1 : 5. Alcohols content, expressed as cedrol: 35 - 48 % (m/m).…

Gives guidelines for design, laying and fixing, and maintenance of roofs of asbestos-cement corrugated or asymmetrical section sheets. Is applicable to the conditions most often found on buildings, wherever they are sited. For special or exceptional laying conditions, particular instructions, additional to those given in this Standard, are required.

A statement of requirements (SOR) is defined as a document to be provided by a user to specify his requirements to a manufacturer. A model SOR is described to enable a user to define his requirements fully, without ambiguity and in standard form so that the supplier can meet the requirements as accurate as possible. Annex A contains a standard form for a SOR, annex B shows clearances.

Describes the measurements of the appropriate hardness where only medium precision is required. The method and apparatus used are essentially those described in ISO 7619, the measurements in this case being made on the curved surface. Shore-type A and D instruments are specified, the latter being used for measurements on rollers of high hardness. Part 1 and 3 of this standard deal with the IRHD…

1. Scope 1.1 This Standard specifies the mechanical, dimensional and electrical requirements for ceramic and glass type station post insulators for indoor or outdoor service in electrical installations or equipment operating with a rated voltage greater than 1000 V and a rated frequency not greater than 100 Hz. 1.2 This Standard covers insulators intended primarily for use as support…

1. Scope 1.1 This Standard specifies the test methods to be used for determining the characteristics of station post insulators. 1.2 Individual tests shall be made only when specified. 1.3 This Standard covers tests applicable to station post insulato rs specified by CSA Standard CAN/CSA-C156.1.

1. Scope 1.1 This Standard applies to insulated conductors intended for use in power-operated electronic devices and is issued to supplement clauses dealing with conductors in CSA Standard C22.2 No. 1. 1.2 The voltage rating of any type of wire covered by this Standard is governed by the requirements of CSA Standard C22.2 No. 1.