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  • ASTM
    E2867-13 Standard Practice for Estimating Uncertainty of Test Results Derived from Spectrophotometry
    Edition: 2013
    $103.58
    Unlimited Users per year

Description of ASTM-E2867 2013

ASTM E2867 - 13

Standard Practice for Estimating Uncertainty of Test Results Derived from Spectrophotometry

Active Standard ASTM E2867 | Developed by Subcommittee: E12.93

Book of Standards Volume: 06.01




ASTM E2867

Significance and Use

5.1 Many competent measurement laboratories comply with accepted quality system requirements such as ISO 9001 , QS 9000 , or ISO 17025 . When using standard test methods, the measurement results should agree with those from other similar laboratories within the combined uncertainty limits of the laboratories measurement systems. It is for this reason that quality system requirements demand that a statement of the uncertainty of the test results accompany every test result.

5.2 Preparation of uncertainty estimates is a requirement for laboratory certification under ISO 17025 . This practice describes the procedures by which such uncertainty estimates may be calculated.

1. Scope

1.1 This practice describes a protocol to be utilized by measurement laboratories for estimating and reporting the uncertainty of a measurement result when the result is derived from a measurand that has been obtained by spectrophotometry.

1.2 This practice is specifically limited to the reporting of uncertainty of color measurement results that are reported as color-differences in ?E format, even though the measurement itself may be reported in other units such as percent reflectance or transmittance.

1.3 The procedures defined here are not intended to be applicable to national standardizing laboratories or transfer laboratories.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Some specific hazards statements are given in Section 7 on Hazards.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Other Standard

QS 9000 Quality Systems Requirements Chrysler Corporation, Ford Motor Company, General Motors Corporation

ISO Standards

ISO 9001 Quality Management Systems--Requirements ISO/IEC 17025 General Requirements for the Competence of Calibration and Testing Laboratories

ASTM Standards

E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E284 Terminology of Appearance


Keywords

control samples; spectrophotometry; test results; uncertainty; uncertainty budget;


ICS Code

ICS Number Code 17.180.20 (Colours and measurement of light); 71.040.50 (Physicochemical methods of analysis)


DOI: 10.1520/E2867-13

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ASTM E2867

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ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.

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