SIST EN ISO 4577:2019 PDF

Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method (ISO 4577:2019)

Title (English):

SIST EN ISO 4577:2019

Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method (ISO 4577:2019)

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 14
Publication date:: September 17, 2019
Edition:: ISO 4577:2019
ICS:: 83.080.20

Document language:

enru

Delivery time:1–7 days

Price:60 €

Description (English):

This document specifies a method for the determination of the resistance of moulded test specimens of polypropylene and propylene-copolymers to accelerated ageing by heat in the presence of air using a forced draught oven. The method represents an attempt to estimate the service life of parts fabricated from propylene plastics. The stability determined by this method is not directly related to the suitability of the material for use when different environmental conditions prevail. NOTE The specified thermal levels are considered sufficiently severe to cause failure of commercial grades of heat-stable propylene plastics within a reasonable period of time. If desired, lower temperatures can be applied to estimate the performance of propylene plastics with lower heat stabilities.

Technical details

Technical committee: IPMA - Polimer materials and products
SKU: SIST EN ISO 4577:2019

Abstract

Overview

EN ISO 4577:2019 - Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method specifies a laboratory procedure to evaluate the resistance of moulded polypropylene (PP) and propylene-copolymers to accelerated ageing by heat in the presence of air using a forced‑draught oven. The method provides an empirical time‑to‑failure under severe thermal‑oxidative conditions and can be used to estimate service life of parts made from propylene plastics. Results are indicative for the specified test environment and are not directly predictive under different service conditions.

Key topics and technical requirements

Test principle: Accelerated ageing in a forced‑draught oven with visual inspection; failure = localized crazing, crumbling and/or discoloration.
Recommended temperature: 150 °C (tests may be run at 100–150 °C; lower temperatures may be used for less heat‑stable grades).
Oven & airflow: Mechanical convection (forced‑draught) oven; exhaust ≥ one oven‑chamber volume per 10 min; air velocity at specimen positions 0.75–1.0 m/s.
Temperature control: Range up to 200 °C; stability ±1 °C at a single location and ±1.5 °C throughout the oven. Temperature recording is recommended.
Specimens: Cut from compression‑moulded sheet per ISO 19069‑2; dimensions 50 × 10 × 1.0 mm (±0.05 mm); at least five specimens per test.
Specimen mounting: Stationary, uniaxial or biaxial rotating holders are allowed; biaxial rotation is reference method in disputes.
Measurements & reporting: Daily visual inspections; report time to failure in days; if failure at 150 °C

Related standards

Mentioned in the description and other SIST standards

Overview

Key topics and technical requirements

Test principle: Accelerated ageing in a forced‑draught oven with visual inspection; failure = localized crazing, crumbling and/or discoloration.
Recommended temperature: 150 °C (tests may be run at 100–150 °C; lower temperatures may be used for less heat‑stable grades).
Oven & airflow: Mechanical convection (forced‑draught) oven; exhaust ≥ one oven‑chamber volume per 10 min; air velocity at specimen positions 0.75–1.0 m/s.
Temperature control: Range up to 200 °C; stability ±1 °C at a single location and ±1.5 °C throughout the oven. Temperature recording is recommended.
Specimens: Cut from compression‑moulded sheet per ISO 19069‑2; dimensions 50 × 10 × 1.0 mm (±0.05 mm); at least five specimens per test.
Specimen mounting: Stationary, uniaxial or biaxial rotating holders are allowed; biaxial rotation is reference method in disputes.
Measurements & reporting: Daily visual inspections; report time to failure in days; if failure at 150 °C

SIST EN ISO 4577:2019 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

Related standards

Plastics — Polypropylene and propylene-copolymers — Determination of thermal oxidative stability in air — Ove…

Plastics - Polypropylene (PP) moulding and extrusion materials - Part2: Preparation of test specimens and det…

Method to calculate GHG emissions at LNG plant (ISO 6338:2023)

Additive manufacturing of metals - Powder bed fusion (PBF) - In-situ coaxial photodiode monitoring for lack o…

Facility management - Development of the facility management organization (ISO 41002:2026)

Rigid cellular plastics - Determination of compressive properties (ISO 844:2026)

Processing of health care products - Information to be provided by the medical device manufacturer for the pr…

Ophthalmic optics - Uncut finished spectacle lenses - Part 4: Specifications and test methods for the propert…