Shaktidal Power-supply transformer and capacitor capable of supplying to the lamp Paragraph 6. General Requirement This test shall be performed only if the laboratory deems it useful in the light of the information in its possession concerning the interlayer. The projection axis in the horizontal plane shall be maintained approximately normal to the trace of the windscreen in that plane. The drop height shall be 1. Three samples out of e43, among which the cross-cut sample mentioned above when applicable, shall give satisfactory results for each chemical.

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Measurement Points Across the Sample Subtract the initial haze from the final haze for every measurement point, the difference representing the so-called delta haze. Calculate out of these values for the individual measurement points the average delta haze including standard deviation resulting from abrasion action of aqueous dirt wiped for 20, cycles on the sample surface by a to be reported wiper blade type.

Power-supply transformer and capacitor capable of supplying to the lamp Paragraph 6. Test Pieces 6. The test pieces shall be cut by the laboratory from the upper part of the glazing in such a way that: 6.

Procedure In the case of glass panes, the upper edge of the test piece coincides with the upper edge of the glass pane. In the case of windscreens, the upper edge of the test piece coincides with the upper limit of the zone in which regular transmittance shall be measured, determined in accordance with Paragraph 9. Check the regular light transmittance, determined according to Paragraphs 9. Protect a portion of each test piece from the radiation, and then place the test pieces in the test apparatus mm from and parallel lengthwise to the lamp axis.

That face of each test piece which would constitute a glazed exterior part of the vehicle shall face the lamp. For the type of lamp specified in Paragraph 6.

After exposure, measure the regular light transmittance again in the exposed area of each test piece. Indices of Difficulty of the Secondary Characteristics Colourless Colouring of glass 2 1 Colouring of interlayer 1 2 The other secondary characteristics are not involved. Test Pieces The dimensions of the test pieces shall normally be those specified in the appropriate test method for the property or properties to be measured after exposure.

The number of control and test pieces for each test condition or exposure stage shall be determined, in addition to those required for visual evaluations by the number required by the test methods. It is recommended that visual evaluations be conducted on the largest test pieces tested.

Measure, according to Paragraph 9. Measure, according to Paragraph 4. That face of each test pieces, which would represent the surface glazed to the exterior of the road vehicle, shall face the lamp. Other exposure conditions shall be as follows: 6. At appropriate intervals, clean lamp filters by washing with detergent and water. Xenon arc filters shall be replaced according to the recommendations of the equipment manufacturer.

The temperature within the exposure apparatus during the dry portion of the cycle shall be controlled by circulation of sufficient air to maintain a constant black standard temperature. The black panel thermometer shall be mounted in the test specimen rack and readings shall be taken at the point where maximum heat is developed due to light exposure. The deionized water used in the spray cycle shall contain less than 1ppm silicon dioxide solids and shall leave no permanent deposit or residue on the test specimens which would interfere with subsequent measurements.

The pH of the water shall be between 6. The temperature of the water in the line where it enters the exposure apparatus shall be the ambient water temperature. The water shall strike the test specimens in the form of a fine spray in sufficient volume to wet the test specimens uniformly, immediately upon impact. Water spray will be directed only against the test specimen surface facing the light source.

No recirculation of the spray water or immersion of the test specimens in the water shall be permitted. In the case of rigid plastic glazings and rigid plastic multiple-glazed units, the number of samples shall be ten. The test pieces shall be prepared in such a way that: a b At least one edge of the test pieces coincides with an original edge of the glass pane, If several test pieces are tested at the same time, adequate spacing shall be provided between them.

Precautions shall be taken to prevent condensate from the walls or ceiling of the test chamber from falling on the test pieces. Indices of Difficulty of the Secondary Characteristics Colourless Colouring of interlayer 1 2 The other secondary characteristics are not involved.

Interpretation of Results 7. Safety glazing shall be deemed to be satisfactory from the point of view of resistance to humidity if no significant change is observed more than 10mm from the uncut edges and more than 15mm from the cut edges after ordinary and treated laminated glass glazing have been maintained for 2h in the ambient atmosphere, and plastics-faced and glass-plastics glazing have been maintained for 48h in the ambient atmosphere.

A set of test pieces or samples submitted for approval shall be considered satisfactory from the point of view of the test for resistance to humidity if all the tests have given a satisfactory result. Procedure The sensitivity of the measuring system shall be adjusted in such a way that the instrument indicating the response of the receiver indicates divisions when the test piece is not inserted in the light path.

When no light is falling on the receiver, the instrument shall read zero. Place the test piece at a distance from the receiver equal to approximately five times the diameter of the receiver.

The regular transmittance shall be measured on the test piece, and for every point measured the number of divisions, n, shown on the indicating instrument, shall be read. In the case of windscreens, alternative test methods may be applied using either a test piece cut from the flattest part of a windscreen or a specifically-prepared flat square with material and thickness characteristics identical to those of the actual windscreen, the measurements being taken normal perpendicular to the glass pane.

For the windscreens of N Vehicles, the manufacturer may request that the same test may be carried out either in Test Area B defined in Annex 18, Paragraph 2. For windscreens of other categories of vehicles, the test shall be carried out in the Zone I defined in Paragraph 9. Indices of Difficulty of the Secondary Characteristics Colourless Colouring of the glass 1 2 Colouring of the interlayer.


Regulation 49 - 06 series (click to expand)








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