Standard No.:	YS/T 1677-2023
Chinese Name:	氯化银
Professional Classification:	YS    Professional Standard - Non-ferrous Metal
Issued by:	MIIT
Issued on:	2023-12-29
Implemented on:	2024-7-1
Status:	valid
Language:	English
File Format:	PDF

Determination of the epoxy value of plasticizers WARNING - It is important for the personnel using this document to have laboratory work experience. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. 1 Scope This standard specifies the test method for determination of the epoxy value of epoxy plasticizer series products. This standard is applicable to the determination of epoxy value of epoxy plasticizer series products. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 601 Chemical reagent - Preparations of reference titration solutions GB/T 603 Chemical reagent - Preparations of reagent solutions for use in test methods GB/T 6283-2008 Chemical products - Determination of water - Karl·Fischer method (general method) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 epoxy value oxygen content in oxirane group per 100g sample 4 Reagents and solutions 4.1.1 Hydrochloric acid [7647-01-0]. 5 Apparatus 6 Analytical procedures

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Reagents and solutions 5 Apparatus 6 Analytical procedures