ASTM D Standard Test Method for Transparency of Plastic Sheeting. Clarity – ASTM D This test method covers the measurement of the transparency of plastic sheeting. While this test may be used for any transparent material. Find the most up-to-date version of ASTM D at Engineering
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Specimen must be free from dust and dirt. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. If the angular width of the incident beam and of the receptor aperture as seen from the specimen position are of the order of 0.
The ring sensor mounted at the exit port of the sphere detects narow angle scattered light clarity. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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ASTM D – 09 Standard Test Method for Transparency of Plastic Sheeting
The values given in parentheses are for information only. The control knob is adjusted so that the meter indicates ast value assigned to the primary standard. Link to Active This link will always route to the current Active version of the standard. For additional information, see Terminology E and Practice E Please first verify your email before subscribing to alerts. Need more than one copy?
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ASTM D – 15 – Standard Test Method for Transparency of Plastic Sheeting
The optical properties of a substance mainly depends on the Molecular structure, morphological characteristics type and amount of additives, processing conditions and post processing operations. This standard is also available to be included in Standards Subscriptions. A light source is illuminated. Colour is measured by a particular wavelength of light reflect and producing sensation in the observer eye. Ast, relatively flat, colored specimen is placed in a specimen holder.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Your Alert Profile lists the documents that will v1746 monitored. All specular gloss values are based on a primary reference standard. You may delete a document from your Alert Profile at any time.
Orientation of the crystallites and satm form birefringence arising from the interfaces between crystalline and amorphous regions.
Next, the sensor is placed on the specimen surface and the gloss value is read directly from the analog or digital display. Proper intensity of light must be present. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Historical Version s – view previous versions of standard.
Proceed to Checkout Continue Shopping. The specimen is placed in the specimen holder.