Draft International Standard
ISO/DIS 11843-7
Capability of detection — Part 7: Methodology based on stochastic properties of instrumental noise
Reference number
ISO/DIS 11843-7
Edition 3
Draft
International Standard
Read sample
ISO/DIS 11843-7
83231
This Draft International Standard is in the enquiry phase with ISO members.
Will replace ISO 11843-7:2018

ISO/DIS 11843-7

ISO/DIS 11843-7
83231
Language
Format
CHF 63
Convert Swiss francs (CHF) to your currency

Abstract

Background noise exists ubiquitously in analytical instruments, whether or not a sample is applied to the instrument. This document is concerned with mathematical methodologies for estimating the minimum detectable value in case that the most predominant source of measurement uncertainty is background noise. The minimum detectable value can directly and mathematically be derived from the stochastic characteristics of the background noise.

This document specifies basic methods to

— extract the stochastic properties of the background noise,

— use the stochastic properties to estimate the standard deviation (SD) or coefficient of variation (CV) of the response variable, and

— calculate the minimum detectable value based on the SD or CV obtained above.

The methods described in this document are useful for checking the detection of a certain substance by various types of measurement equipment in which the background noise of the instrumental output predominates over the other sources of measurement uncertainty. Feasible choices are visible and ultraviolet absorption spectrometry, atomic absorption spectrometry, atomic fluorescence spectrometry, luminescence spectrometry, liquid chromatography and gas chromatography.

General information

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)