Buy ASTM D CLASSIFICATION SYSTEM FOR NYLON INJECTION AND EXTRUSION MATERIALS (PA) from SAI Global. ASTM D Standard Classification System for Nylon Injection and Extrusion Materials (PA). standard by ASTM International, 07/01/ View all product. 暂无评价|0人阅读|0次下载 | 举报文档. D – 01A Nylon Injection and Extrusion Materials_能源/化工_工程科技_专业资料。ASTM D标准.
Nylon Processing and T A AM — 01a All Material data for inje D — 01a Standard Classi? A number in parentheses indicates the year of last reapproval.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Asgm.
Some of these compositions are also suitable for compression molding and application from solution. There may be other requirements necessary to identify particular characteristics important to specialized applications. These may be speci? It is not intended for r4066 selection of materials. Material selection should be made by those having expertise in the plastic?
This standard does not purport to address all of the safety concerns, if any, associated with its use.
ASTM D – 94b Standard Classification System for Nylon Injection and Extrusion Materials (PA)
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. It is recommended that the material manufacturer be consulted on all call-outs against this classi?
Current edition approved August 10, Originally published as D — Last previous edition D d44066 Plastic and Ebonite ISO General Principles ISO Testing Conditions ISO NOTE 3—An example of this classi? The designation PA indicates the following: NOTE 4—An example of this classi? The designation PAG35 indicates the following: Atm, a letter designation G for glass reinforced and 35 for percent or reinforcement, G35, speci? The reinforcement letter designations and associated tolerance levels are shown as follows: Symbol Material C carbon- and graphite-?
If necessary, additional control of these reinforcements and additives can be accomplished by use of the suffix part of the system see Section 5. NOTE 6—Materials containing reinforcements or? NOTE 7—An example of this classi? NOTE 8—Ash content of? No descriptions are listed unless needed to describe a special grade under the class. All other grades are listed by requirements. Weatherable nylon typically contains 1.
It is possible that materials incorporating other pigments or soluble stabilizers, or both may prove adequate for particular applications. G Relative Viscosities for Group 03 were generated from a correlation with Test Method Dutilizing an Ubbelohde viscometer, and m-Cresol as the solvent.
Refer to Table X3. Table PA is used to specify the group of nylon and Table A or B is used to specify property requirements. NOTE 9—An example of this classi? The designation PAG30A would indicate the following material requirements: Suffix values asm override the PA table values. An example of an unreinforced nylon material is given as follows: This example is a general purpose, low viscosity nylon 6 material where U denotes?
This example can be applied to replace awtm table values, that is, tensile stress, notched Izod impact, and heat de? This table will be used in a manner similar to Table A.
NOTE 11—Pigmented or colored nylons can differ signi? The main property affected is ductility, as illustrated by a reduction in Izod impact and elongation values.
NOTE 12—An example of a special material using this classi? If no properties are speci? NOTE 10—When a grade of polyamide is not fully identi?
D If a speci? In general, the suffix letter gives the general requirements needed and the? These are electrical limits applied to unreinforced nylons when control of their electrical properties is required. These are electrical limits applied to reinforced nylons when control of their electrical properties is required. These will be spelled out in detail and identi? Conformance d40666 nonconformance is based on this comparison. All tests shall be conducted on as-molded not annealed specimens conditioned dry-as-molded.
The following pieces are to be used for the ast, relevant astmm methods: Electrodes shall be American Standard No. The specimen shall be of sufficient size so that two 4. The holes shall be drilled as above and then reamed, using a standard-tapered pin reamer, to a sufficient depth to allow the pins to extend approximately The electrodes shall be inserted after the specimens have been conditioned.
These specimens shall be tested. The test specimen shall be a disk Voltage increments for the step-by-step test shall be determined from short-time test results as follows: Breakdown d466 short-time test, kV Step-by-step testing shall be carried out using?
The test specimen is a disk The dissipation factor is the cotangent of the dielectric phase angle or the tangent of the dielectric loss angle. Five specimens shall be tested.
After the humidity conditioning speci? Start the test within 2 min after removing the specimen axtm wiping with a dry cloth. Recommended processing temperatures are shown in Table 3. Selection of process temperature is made based on the major polymer component.
Industrial & Engineering Plastics
Maximum moisture content of specimens shall be 0. No moisture shall be intentionally added to reach this level. NOTE 21—Physical properties of most nylon resins are highly dependent upon the moisture content of the molded item. Individual specimens shall not be removed from sealed containers until immediately before testing. The lot-acceptance inspection shall consist of the tests listed as they apply: Inspection frequency shall be adequate to ensure the material is certi?
The report shall consist of results of the lotacceptance inspection for the shipment and the results of the most recent periodic-check inspection. Packing, Packaging, and Marking Seven laboratories, including 3 U.
The melting point, Tm, is obtained from the second melting curve. Other 0 0 Other Other 0 0 No descriptions are listed unless needed to describe a special grade under the class. Viscosities for Groups 03, 04, 06, and 08 are measured as described as follows. Relative viscosities of Groups 03 d40666 04 shall be measured on 0.
Inherent viscosity of Group 06 shall be measured on 0. The inherent viscosity is calculated as follows: Relative viscosity of Group 08 shall be measured on 9. Awtm of these methods will be included in a future revision of Speci?
E Tensile strength and f4066 shall be determined on Test Method D test specimens 3. F Flexural modulus shall be determined on Test Method D test specimens 3. G Izod impact for these materials shall be conducted on specimens with a The specimens tested are 3. H Requirements are based on unannealed test specimens 3. I Groups 03 and 04 materials use Speci? J Carbon black content and absorbance must be 1.
Privacy & Cookies Policy
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.