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Accuracy (trueness and precision) of measurement methods and results - Part 5: Alternative methods for the determination of the precision of a standard measurement method (ISO 5725-5:1998, IDT)
MS ISO 5725-5:2002 (CONFIRMED:2015)
Status : Original
Format : PDF

This Malaysian Standard 
- provides detailed descriptions of alternatives to the basic method for determining the repeatability and reproducibility standard deviations of a standard measurement ....Read more method, namely the split-level design and a design for heterogeneous materials;

- describes the use of robust methods for analysing the results of precision experiments without using outlier tests to exclude data from the calculations, and in particular, the detailed use of one such method.

This standard complements ISO 5725-2 by providing alternative designs that may be of more value in some situations than the basic design given in ISO 5725-2, and by providing a robust method of analysis that gives estimates of the repeatability and reproducibility standard deviations that are less dependent on the data analyst's judgement than those given by the methods described in ISO 5725-2. Close

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Accuracy (trueness and precision) of measurement methods and results - Part 3: Intermediate measures of the precision of a standard measurement method (ISO 5725-3:1994, IDT)
MS ISO 5725-3:2002 (CONFIRMED:2015)
Status : 1st Confirmation
Format : PDF

This Malaysian Standards specifies four intermediate precision measures due to changes in observation conditions (time, calibration, operator and equipment) within a laboratory. These intermediate mea ....Read more sures can be established by an experiment within a specific laboratory or by an interlaboratory experiment. 
Furthermore, this part of standard

a) discusses the implications of the definitions of intermediate precision measures;

b) presents guidance on the interpretation and application of the estimates of intermediate precision measures in practical situations;

c) does not provide any measure of the errors in estimating intermediate precision measures;

d) does not concern itself with determining the trueness of the measurement method itself, but
does discuss the connections between trueness and measurement conditions.

This standard is concerned exclusively with measurement methods which yield measurements on a continuous scale and give a single value as the test result, althoug Close

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Accuracy (trueness and precision) of measurement methods and results - Part 6: Use in practice of accuracy values (ISO 5725-6:1994, IDT)
MS ISO 5725-6:2002 (CONFIRMED:2023)
Status : 2nd Confirmation
Format : PDF

The purpose of this Malaysian Standard is to give some indications of the way in which accuracy data can be used in various practical situations by: 
a) giving a standard method of calculating ....Read more the repeatability limit, the reproducibility limit and other
limits to be used in examining the test results obtained by a standard measurement method;

b) providing a way of checking the acceptability of test results obtained under repeatability or reproducibility conditions;

c) describing how to assess the stability of results within a laboratory over a period of time, and thus
providing a method of “quality control” of the operations within that laboratory;

d) describing how to assess whether a given laboratory is able to use a given standard measurement
method in a satisfactory way;

e) describing how to compare alternative measurement methods.

This standard is concerned exclusively with measurement methods which yield measurements on a continuous scale and give .a single numerical Close

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Accuracy (trueness and precision) of measurement methods and results - Part 4: Basic methods for the determination of the trueness of a standard measurement methods (ISO 5725-4:1994, IDT)
MS ISO 5725-4:2002 (CONFIRMED:2015)
Status : Withdrawal without replacement
Format : PDF

This Malaysian Standard provides basic methods for estimating the bias of a measurement method and the laboratory bias when a measurement method is applied. 
It is concerned exclusively with m ....Read more easurement methods which yield measurements on a continuous scale and give a single value as the test result, although the single value may be the outcome of a calculation from a set of observations.

In order that the measurements are made in the same way, it is important that the measurement method has been standardized. All measurements are to be carried out according to that standard method.

Bias values give quantitative estimates of the ability of a measurement method to give the correct (true) result. When a value for the bias of a measurement method is quoted, together with a test result obtained by that method, there is an implication that the same characteristic is being measured in exactly the same way. Close

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Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method (ISO 5725-2:1994, IDT)
MS ISO 5725-2:2002 (CONFIRMED:2015)
Status : Withdrawal without replacement
Format : PDF

This Malaysian Standard 
- amplifies the general principles to be observed in designing experiments for the numerical estimation of the precision of measurement methods by means of a collabora ....Read more tive interlaboratory experiment;

- provides a detailed practical description of the basic method for routine use in estimating the
precision of measurement methods;

- provides guidance to all personnel concerned with designing, performing or analysing the results of
the tests for estimating precision. Close

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Water quality - Sampling - Part 5: Guidance on sampling of drinking water from treatment works and piped distribution systems (ISO 5667-5:2006, IDT)
MS ISO 5667-5:2012
Status : Original
Format : PDF

This Malaysian Standard establishes detailed principles to be applied to the design of sampling programmes, to sampling techniques and to the handling and preservation of samples of drinking water. It ....Read more includes the processing of water in a treatment plant. Close

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WATER QUALITY – SAMPLING – PART 18: GUIDANCE ON SAMPLING OF GROUND WATER AT CONTAMINATED AREAS (ISO 5667-18:2001, MOD)
MS ISO 5667: PART 18:2007
Status : Original
Format : PDF

This Malaysian Standards provides guidance on the sampling of groundwater at potentially contaminated sites. It is applicable to situations where contamination of the subsurface could exist as a resul ....Read more t of downward migration of pollutants whose source is at the surface or just below it, and when the guidance provided in ISO 5667-11 is inappropriate. Close

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WATER QUALITY - SAMPLING - PART 16: GUIDANCE ON BIOTESTING OF SAMPLES (ISO 5667-16:1998, IDT)
MS ISO 5667: PART 16:2007
Status : Original
Format : PDF

This Malaysian Standards gives practical guidance on sampling, pretreatment, performance and evaluation of waters in the context of biotesting. Information is given on how to cope with the problems fo ....Read more r biotesting arising from the nature of the water sample and the suitability of the test design. 
It is intended to convey practical experience concerning precautions to be taken by describing methods successfully proven to solve or to circumvent some of the experimental problems of biotesting of waters.

Reference has been made as far as possible to existing standards and guidelines. Information taken from published papers or oral communication is utilized as well.

Primarily dealt with are substance-related problems concerning sampling, pretreatment and preparation of water samples for biotesting and treatment of samples during the test, especially when performing tests with waters and waste waters containing unstable or removable ingredients. Basic principles of quality assurance, eva Close

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WATER QUALITY - SAMPLING - PART 17: GUIDANCE ON SAMPLING OF SUSPENDED SEDIMENTS (ISO 5667-17:2000, IDT)
MS ISO 5667: PART 17:2007
Status : Original
Format : PDF

This Malaysian Standards is applicable to the sampling of suspended solids for the purpose of monitoring and investigating freshwater quality, and more particularly to flowing freshwater systems such ....Read more as rivers and streams. Certain elements of this standard may be applied to freshwater lakes, reservoirs and impoundments, however field sampling programmes may differ and are not necessarily covered here. Close

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PAPER AND BOARD - DETERMINATION OF COLOUR BY DIFFUSE REFLECTANCE - PART 1: INDOOR DAYLIGHT CONDITIONS (C/2 DEGREES) (FIRST REVISION) (ISO 5631-1:2009, IDT)
MS ISO 5631-1:2010
Status : 1st Revision
Format : PDF

This Malaysian Standard specifies a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss. 
This Malaysian Standard is not ....Read more applicable to coloured papers or boards which incorporate fluorescent dyes or pigments. It may be used to determine the colour of papers or boards which contain fluorescent whitening agents provided the UV content of the illumination on the test piece has been adjusted to conform to that in the CIE illuminant C, using a fluorescent reference standard provided by an ISO/TC 6 authorized laboratory, as described in ISO 2470-1. Close

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