Overview

KTR is a specialized institute for the production of standard materials in accordance with the provisions of Article 15 of the National Standardization Law, Article 20 of the Operating Procedures of the Standard Material Manufacturers' Accreditation System, and the accreditation requirements of the KS A ISO Guide 34. We manufacture and supply standard materials such as rubber hardness, phthalate plasticizer and paint.

Definition of terms

Reference materials (RM)

A substance which is sufficiently homogeneous and stable for at least one specified quantity and which is used to calibrate the measuring system or to evaluate the measuring procedure or to establish the value of the quantity of another substance of the same kind and the measurement uncertainty

Certified Reference Materials (CRM)

These reference materials contain an authorized certificate. They also contain certification value, the measurement uncertainty, and the clearly defined metrological traceable link.

Primary Reference Materials (PRM)

This certified reference material is made by primary measurement method and secures international equivalence through international key comparisons. This material is also made and used for specific purposes, such as building traceability with national measurement standards.

Secondary reference materials

The national measurement standards and traceability of there reference materials have been established by the primary measurement method or primary reference materials. They are certified reference materials that are produced and sold for use in measurement and analysis sites.

Standard material producer

An organization that has technical competence that is wholly responsible for assigning certification values or other property values to reference materials produced and supplied in accordance with ISO guides 31 and 35(Public or private organization or company)

Accreditation system for reference materials manufacturing agency

It is a system that evaluates the institutions that produce the standard materials and objectively recognizes their ability when they meet international standards.

Necessity of the accreditation system for reference materials manufacturing agency

• - Ensuring the quality of reference materials: Suitability assessment for international standards
• - Smooth supply of reference materials: Promotes a production of commercial reference materials
• - Technology change and satisfying various requirements for reference materials : Development of various reference materials
• - Fostering of institutes manufacturing reference materials : Supports the development of reference materials and promotes reference materials that have been developed

Characteristics of the accreditation system for reference materials manufacturing agency

Related standards

- available at www.standard.go.kr

Status of development of certified reference materials

• 1. Certified reference materials for asbestos in building materials - White asbestos, brown asbestos and blue asbestos - Three types
• 2. Certified reference materials for white asbestos in soil - White asbestos - One type
• 3. Standard hardness block for rubber - HD50, HD60, HD70, HD80, HD90 - Five types
• 4. Certified reference materials for phthalate platicizer - DMP, DEP, DBP, BBP, DEHP, DnOP - Six components
• 5. Certified reference materials for phosphor bronze - Copper, tin, phosphorus, lead, nickel, cobalt, iron - Seven components
• 6. Certified reference materials for the heavy metal in paint - Lead and cadmium - two components

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