한국표준정보망

회원가입 로그인 비회원(주문조회) 장바구니 이용안내

English
메뉴
검색 마이페이지 장바구니0

QUICK

닫기

TOP

해외표준 상세정보

관심표준 등록 : 표준업데이트 시 알림서비스

제공형태 더보기

상세정보

분야 ISO/TC 61/SC 2 : Mechanical behavior
적용범위

This document specifies a method for determining the flexural properties of rigid and semi-rigid plastics under defined conditions. A preferred test specimen is defined, but parameters are included for alternative specimen sizes for use where appropriate. A range of test speeds is included.

The method is used to investigate the flexural behaviour of the test specimens and to determine the flexural strength, flexural modulus and other aspects of the flexural stress/strain relationship under the conditions defined. It applies to a freely supported beam, loaded at midspan (three-point loading test).

The method is suitable for use with the following range of materials:

— thermoplastic moulding, extrusion and casting materials, including filled and reinforced compounds in addition to unfilled types; rigid thermoplastics sheets;

— thermosetting moulding materials, including filled and reinforced compounds; thermosetting sheets.

In agreement with ISO 10350-1[5] and ISO 10350-2[6], this document applies to fibre-reinforced compounds with fibre lengths ≤7,5 mm prior to processing. For long-fibre-reinforced materials (laminates) with fibre lengths >7,5 mm, see ISO 14125[7].

The method is not normally suitable for use with rigid cellular materials or sandwich structures containing cellular material. In such cases, ISO 1209-1[3] and/or ISO 1209-2[4] can be used.

NOTE 1 For certain types of textile-fibre-reinforced plastic, a four-point bending test is used. This is described in ISO 14125.

The method is performed using specimens which can be either moulded to the specified dimensions, machined from the central section of a standard multipurpose test specimen (see ISO 20753) or machined from finished or semi-finished products, such as mouldings, laminates, or extruded or cast sheet.

The method specifies the preferred dimensions for the test specimen. Tests which are carried out on specimens of different dimensions, or on specimens which are prepared under different conditions, can produce results which are not comparable. Other factors, such as the test speed and the conditioning of the specimens, can also influence the results.

NOTE 2 Especially for injection moulded semi-crystalline polymers, the thickness of the oriented skin layer, which is dependent on the moulding conditions, also affects the flexural properties.

The method is not suitable for the determination of design parameters but can be used in materials testing and as a quality control test.
국제분류(ICS)코드 83.080.01 : 플라스틱 일반
페이지수 25
Edition 6

이력정보

No. 표준번호 표준명 발행일 상태
1 ISO 178:2019상세보기 Plastics — Determination of flexural properties 2019-04-01 표준
2 ISO 178:2010/Amd 1:2013상세보기 Plastics — Determination of flexural properties — Amendment 1 2013-04-05 구판
3 ISO 178:2010상세보기 Plastics — Determination of flexural properties 2010-12-06 구판
4 ISO 178:2001/Amd 1:2004상세보기 Plastics — Determination of flexural properties — Amendment 1: Precision statement 2004-02-12 구판
5 ISO 178:2001상세보기 Plastics — Determination of flexural properties 2001-12-20 구판
6 ISO 178:1993상세보기 Plastics -- Determination of flexural properties 1993-05-06 구판
7 ISO 178:1975상세보기 Plastics -- Determination of flexural properties of rigid plastics 1975-12-01 구판
8 ISO 178:1972상세보기 Title missing - Legacy paper document 1972-01-01 구판

관련상품

  • 관련상품이 존재하지 않습니다.

다른 사람이 함께 구입한 상품

추천 상품

제공형태 닫기

  • PDF :

    직접 파일 다운로드 및 인쇄(마이페이지 확인)

  • 보안PDF :

    직접 파일 다운로드 및 인쇄(마이페이지 확인)* 단, 파일이동 및 복사 불가, 1회 다운로드 및 인쇄가능

  • PRINT :

    인쇄본 우편발송, 2~3일 소요(PDF파일 미제공)

  • BOOK :

    인쇄본 우편발송, 2~3일 소요(PDF파일 미제공)

  • ZIP :

    압축파일형태로 제공 (PDF, HTML, TXT, XLS 등으로 구성), 직접 파일 다운로드(마이페이지 확인)

  • CD/DVD :

    직접 파일 다운로드 및 인쇄(마이페이지 확인)

  • DB :

    별도 정보 제공

  • HARDCOPY :

    해외 배송 상품, 최대 3주 소요

  • 바인더 :

    바인더 우편발송, 2~3일 소요

  • 온라인구독 :

    WEB 접속 후 실시간 열람, 출력(1년간)