Document Details |
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| Name of Department/Committee : | PCD 27 |
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| Document Number : | PCD 27 ( 25751) |
| Document Title [English] : | PLASTICS METHODS OF TESTING PART 5 MECHANICAL PROPERTIES SEC XX DETERMINATION OF DYNAMIC MECHANICAL PROPERTIES SUBSEC 7 TORSIONAL VIBRATION NON-RESONANCE METHOD |
| Document Title [Hindi] : | प्लास्टिक — परीक्षण पद्धति भाग 5 यांत्रिक गुणधर्म अनुभाग XX गत्यात्मक यांत्रिक गुणधर्म का निर्धारण उपभाग 7 पृष्ठीय कंपन — गैर-अनुनाद विधि |
| Document Type : | New |
| Language : | English |
| Priority : | 3 |
| ICS Code : | 83.080.01 |
| Date of Project Approval : | 28-05-2024 |
| Standards to be Superseded : | |
Classification Details |
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| Group : | Chemicals, Plastics and their Products including packaging and Environment |
| Sub Group : | Plastic Films, Bottles, Jars, Pipes, Sockets and Other Products |
| Sub Sub Group : | Method of test for plastics |
| Aspects : | Methods of tests |
| Risk : | None |
| Certification : | Not Certifiable |
| Short Commom Man's Title : | |
| ITCHS Code : | |
| Ministry : |
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| Sustainable development Goals : | |
| Degree of Equivalence : | Identical under dual numbering |
| Identical/Equivalent Standards : | ISO 6721-7 : 2019 |
| Organization Type: | ISO |
| Sl.No. | Synosis Points | |
| 1 | This document describes a torsional, non-resonance method for determining the components of the shear complex modulus G* of solid polymers in the form of bars or rods at frequencies typically in the range 0,001 Hz to 100 Hz. Higher-frequency measurements can be made, but significant errors in the dynamic properties measured are likely to result (see 10.2.1 and 10.2.2). The method is suitable for measuring dynamic storage moduli ranging from about 10 MPa, which is typical of values obtained for stiff rubbers, to values of about 10 GPa which are representative of fibre-reinforced plastics. Although materials with moduli less than 10 MPa can be studied, more accurate measurements of their dynamic properties can be made using simple shear (see ISO 6721-6) or torsional deformations of thin layers between parallel plates. | |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 28-05-2024 | ------- | ||
| 2 | P-Draft Waived | 28-05-2024 | ------- | ||
| 3 | WC Draft | 28-05-2024 | Duration : 60 Days Submitted for HOD approval |
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| 4 | WC Draft | 28-05-2024 | WC approved by HOD |
PCDC PCD 12, PCD 21, | ------- |