Procedure: ASTM G utilizes a nutrient salts agar that provides all of the trace nutritional elements needed by fungi to support growth. However, to achieve a. Buy ASTM G PRACTICE FOR DETERMINING RESISTANCE OF SYNTHETIC POLYMERIC MATERIALS TO FUNGI from SAI Global. ASTM G Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi. This practice covers determination of the effect of.
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Need more than one copy? If handling is necessary gloves, should be worn while handling test g1-09. Changes in optical, mechanical, and electrical properties may be determined by the applicable ASTM methods.
The fungus results are usually determined and recorded as a growth rating:. Start Webshop Product catalog Product presentation. Determination of these effects is not covered in this practice.
Aatm can have a negative effect on the test results since it could easily provide nutrients to the fungus for growth.
If the samples are mishandled or suspected of contamination prior to testing, they should be cleaned, Testing cannot be conducted on ast, until 72 hours have passed. Attack on these materials often leaves ionized conducting paths. Standards Subsctiption may be the perfect solution. This standard is also available to be included in Standards Subscriptions.
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Add to Alert PDF. Y21-09 to Active This link will always route to the current Active version of the standard. Changes in optical, mechanical, and electrical properties may be determined by the applicable ASTM methods. Proceed to Checkout Continue Shopping.
ASTM G21 – National Technical Systems
In order to minimize contamination, good practices include not removing the test g210-9 from the packaging until it is time for inoculation. Historical Version s – view previous versions of standard. Read more about subscriptions. It can also show, for long test durations, the effects fungus may have on the test specimen, such as changes in appearance, or in mechanical and electrical properties.
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The test can reveal if the specimen being analyzed supplies sufficient nutrition for fungal growth. 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. You may delete a document from your Alert Profile at any time.
Already Subscribed to this document. Breaching protective covers to mar the appearance and degrade the optical capabilities of your product Shedding metabolic waste products that cause corrosion or etching Prompting electrical systems to develop undesirable conducting paths Blocking delicate moving parts Introducing internal moisture, which can affect system performance Fungus Asm Test methods are used to determine the effect of fungi on the properties h21-09 synthetic polymeric materials in the form of molded and fabricated articles, tubes, rods, sheets, and film materials.
Types of Asmt Attacks Fungus can disrupt systems and cause damage in several ways, including: To ensure that estimates of behavior are not too optimistic, the greatest observed degree of deterioration should be reported. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.
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