# ISO/TR 4137:1978 — Withdrawn and superseded ISO standards For ISO/TR 4137:1978, item title is Plastics — Determination of modulus of elasticity by alternating flexure; status code is 9599; successor is ISO/CD 4137; withdrawn / published date is 1978-06-01, recorded from its source on 2026-08-05. - **Identifier:** ISO/TR 4137:1978 _(verified: appears in the quote below)_ - **Item title:** Plastics — Determination of modulus of elasticity by alternating flexure _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/CD 4137 - **Withdrawn / published date:** 1978-06-01 _(verified: appears in the quote below)_ ## What the source says > 9896,TR,,ISO/TR 4137:1978,Plastics — Determination of modulus of elasticity by alternating flexure,Plastiques — Détermination du module d'élasticité par flexion alternée,1978-06-01,1,['83.080.01'],ISO/TC 61/SC 2,9599,,[9895],"['en','fr']",7,"

This report describes a method for the determination of the longitudinal moduls of elasticity of plastics by means of Savarts pendulum. The method is applicable to products for which the characteristic determined is greater than 1500 MPa and which it is possible to prepare specimens from 1 to 5 mm in thickness by cutting. The elasticity of the test piece is employed for the transmission of energy from one pendulum to another, the test piece being used ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).