D Practice for Outdoor Weathering of Plastics3 4 Discontinued; see Annual Book of ASTM Standards, Vol 5 Annual Book of. astm d 塑料的室外风化 – Designation: D – 99 Standard Practice for Outdoor Weathering of Pl. Find the most up-to-date version of ASTM D at Engineering
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Several years of repeat exposures are needed to get an average test result for a given location. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Add to Alert PDF. This standard is not included in any packages. The actual yearly values may vary widely from Table 1. R1435 published as D — 56 T. Historical Version s – view previous versions of standard.
ASTM D – 99 Standard Practice for Outdoor Weathering of Plastics
We have no amendments or corrections for this standard. The results of tests conducted for less than 12 months will depend on the particular season of the year in which they begin. Specimen marking shall be in accordance with Practice G and shall be such that there is no interference with either the exposure or the subsequent testing.
NOTE 6—Sand as a ground cover may be desirable where the abrasive astn of exposure to wind-blown sand is a part of the desired exposure. This method of mounting is shown in C1435.
NOTE 4—At-latitude exposure provides maximum annual total solarradiant exposure at most non-subtropical sites. Subscription pricing is determined by: If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This standard is also available to be included in Standards Subscriptions.
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. The relative durability of plastics in outdoor use can be very different depending on the location of the exposure because of differences in ultraviolet UV radiation, time of wetness, temperature, pollutants, and other factors.
You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Calculate retention of characteristic property according to Practice D when it is reported.
ASTM D1435 – 13
Exposure test specimens should be large enough that mounting edges may be removed where evaluation test results would otherwise be affected. This standard has been approved for use by agencies of the Department of Defense. If the document is revised or amended, you will be notified by email.
This is the recommended method for determining exposure stages when polymer degradation is being evaluated. The effect of backing is highly signi? NOTE 7—The same exposure stage by whichever method is used will not necessarily give the same changes in properties of the test specimen at different exposure sites.
An inherent limitation in solar-radiation measurements is that they do not re? Your Alert Profile lists the documents that will be monitored. Proceed to Checkout Continue Shopping.
Please first log in with a verified email before subscribing to alerts. It is intended for use with d14435 articles of commerce as well as with all sizes and shapes of test specimens. The exposure stages must be regarded as providing only a general indication of the degree of exposure, and the results should always be considered in terms of characteristics of the exposure site as well.
Note 1 — See Practice G24 for aging under glass.