서문
ISO (국제 표준화기구) 국가 표준 기관입니다 (ISO 회원) 세계연맹의. 국제 표준 개발은 일반적으로 ISO 기술 위원회를 통해 수행됩니다.. Each interested in the subject of which a technical committee has been set up members of the group have the right to send representatives to participate in the committee. Liaison with ISO international organizations, governments and ngos to participate in the work. ISO with the international electrotechnical commission (IEC) on all electrical and standardized issues closely.

부분 1 ISO/IEC 지침에는 이 문서를 개발하는 데 사용된 절차와 추가 유지 관리에 사용된 절차가 설명되어 있습니다.. 특히, 다양한 유형의 ISO 문서에 필요한 다양한 승인 기준에 주의를 기울여야 합니다.. 이 문서는 Part의 편집 규칙에 따라 작성되었습니다. 2 ISO/IEC 지침의 (iso.org/directives를 참조하세요.).

이 문서의 특정 요소는 특허권의 대상이 될 수 있습니다.. ISO는 그러한 특허권의 일부 또는 전부를 식별할 책임이 없습니다.. In the process of document development determine the detailed information of any patent rights in the introduction and/or received ISO (iso.org/patents 참조) patent statement list.

ISO 3251-2019 “페인트의 비휘발성 화합물 측정, 광택제 및 플라스틱”

Any trade names used in this document are provided as information for the convenience of users and do not constitute an endorsement thereof.

Voluntary interpretation, related standards and conformity assessment related ISO specific terminology and express the meaning of and the ISO in the technical barriers to trade (TBT) adhere to the principle of the world trade organization (WTO) information, please refer to

Iso.org/iso/foreword.html.

This document is prepared by Technical Committee ISO/TC 35, 페인트 및 바니시, 소위원회 SC 9, General Test methods for paints and varnishes.

제5판은 제4판을 제거하고 대체합니다. (ISO 3251:2008), 기술적으로 개정된 것. 전판과의 주요 변경사항은 다음과 같습니다.:

ISO 3251-2019 “페인트의 비휘발성 화합물 측정, 광택제 및 플라스틱”

To ISO 4618 – increased in clause 3 general reference of the terms and definitions:

— 4.5 example of desiccant to silica gel in orange, because no longer allowed to use cobalt chloride as the indicator;

— Corrected accuracy data for polymer dispersions: the figures given in the 2008 edition were ± data, which have now been correctly converted to percentages;

— General test parameters for paint powders (powder resins) have been removed from Table A.1 because ISO 8130-7 can be used instead;

— Added common test parameters for waterborne coatings in Table A.1.

Any feedback or question this file should be submitted to the national standards organizations of users. A full list of these agencies can be found at iso.org/members.html.

ISO 3251-2019 “페인트의 비휘발성 화합물 측정, 광택제 및 플라스틱”

소개
For methods that can be used for unplasticized polymer dispersions and rubber latex, the non-volatile residues (mainly composed of polymer materials and small amounts of additives, such as emulsifiers, protective colloids, stabilizers, solvents added as film forming agents and — especially for rubber latex concentrates — preservatives) need to be chemically stable under the test conditions. For plasticized samples, residues usually include plasticizers by definition.

ISO 3233 (모든 부분) specifies test methods for determining the content of non-volatile substances in paints, varnishments and related products.

1 적용 범위
This document specifies a determination of paint, 광택, paint and varnish binder, polymer dispersions and condensation resin (such as phenolic resin (JiaJie phenolic resin and novolac solution, 등.)) method of non-volatile matter content.

This method can also be applied to preparation containing fillers, pigments and other additives, such as thickening agent, film former dispersions.

메모 1: the product of the volatile matter content is not absolute, but rather depends on the determination of the temperature and heating time. 그러므로, when this method is used, only relative rather than true values of the non-volatile content can be obtained due to solvent retention, thermal decomposition, and evaporation of low molecular weight components. 그러므로, this method is mainly used to test different batches of the same type of product.

메모 2 This method is suitable for synthetic rubber latex, provided that heating for a specified period of time is considered appropriate (ISO 124 provides heating until the mass loss of 2 g of the test portion is less than 0.5 mg after continuous heating).

ISO 3251-2019 “페인트의 비휘발성 화합물 측정, 광택제 및 플라스틱”

메모 3 Internal methods for determining nonvolatile substances usually include drying with infrared or microwave radiation. The standardization of this kind of method is impossible, because they are not universal. Several polymer compositions tend to break down during this treatment and therefore give incorrect results.

2 규범적 참고 문서
In the article refer to the following documents, the requirements of some or all of the content of this document. 날짜가 있는 참고자료의 경우, 인용된 버전만 적용됩니다.. 날짜가 없는 참고자료의 경우, the new version of the applicable reference documents (모든 수정 사항을 포함하여).

ISO 123, Rubber latex – 견본 추출

ISO 124, 유액, 고무, the determination of total solid content

ISO 1513, 페인트와 바니시 – test sample inspection and preparation

ISO 4618, 페인트와 바니시 – 용어 및 정의

ISO 15528, 그림 물감, 바니시 및 페인트 및 바니시 원료 — 견본 추출

ISO 3251-2019 “페인트의 비휘발성 화합물 측정, 광택제 및 플라스틱”

3 용어 및 정의
이 문서의 목적을 위해, ISO에서 주어진 4618 용어 및 정의가 적용됩니다..

ISO 및 IEC는 표준화를 위해 다음 주소에 용어 데이터베이스를 유지하고 있습니다.:

– ISO 온라인 검색 플랫폼: iso.org/obp

– IEC 전기사전: Electropedia.org/에서 확인 가능

표준 정보 구성요소만 공개적으로 이용 가능합니다.. 전체 내용을 보시려면, 공식 채널을 통해 표준을 구매해야 합니다..