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BS 903-2:1997

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Physical testing of rubber Guide to the application of statistics to rubber testing
Available format(s)

Hardcopy , PDF

Superseded date

02-28-2009

Language(s)

English

Published date

05-15-1997

Foreword
Introduction
1 Scope
2 Informative references
3 Definitions
4 Symbols
5 Limitations of test results
6 Distribution of results and measures of central
    tendency
7 Confidence limits and significant difference
8 Ranking methods
9 Criteria for rejecting outliers
10 Analysis of variance
11 Regression analysis
12 Uncertainty of measurement
13 Sampling
14 Number of test pieces
15 Expression of results
16 Precision statements
17 Design of experiments
18 Statistical quality control
Annexes
A (informative) Mathematical form of the distribution
    functions referenced in this British Standard
B (informative) Additional forms of mean value
C (informative) Inter-relationships for measures of central
    tendency in the double exponential and Weibull
    distributions
D (informative) Equation for the calculation of standard
    deviation
E (informative) Construction of Weibull probability
    paper
F (informative) Equations for the calculation of Student's
    t values
G (informative) Testing the coefficient of concordance
H (informative) Analysis of variance
J (informative) Equations for the calculation of
    regression coefficients
K (informative) The intercal method
Tables
1 Tensile strength measurements from one batch of rubber
2 Tensile strength measurements from three materials
3 Table of factors for converting range to standard
    deviation
4 Plot positions for the double exponential distribution
5 Tensile strength measurements
6 Calculated values for tensile strength measurements
7 Tension fatigue test measurements
8 Electrical resistivity measurements
9 Hardness measurements
10 Calculated values for hardness measurements
11 A selected table of student's t values
12 t value constants
13 A selected table of chi-square values
14 Statistics for observation sets
15 Snedecor's F values for selected degrees of freedom
16 Percentage stress relaxation measurements
17 Lower confidence limits for percentage stress
    relaxation
18 Tear tests
19 Friedman's test: critical values K for a = 0.05
    level of significance
20 Vulcanizate test results
21 Vulvsnizate test statistical calculations
22 Critical values for Dixon's test
23 Critical values for Cochran's test
24 Compression set results
25 Sorted compression set results
26 Volume swell test 1
27 Volume swell test 2
28 One factor statistics summary
29 Abrasion volume loss results
30 Table of sums
31 Analysis of variance
32 Compression set measurements after 7 days ageing
33 Transformed compression set variables
34 Comparison of compression set values
35 Tensile strengths after ageing
36 Measurements of temperature of retraction
37 Retraction value results
38 Table of elongation at break values
39 Volume swell measurements
40 Inferences from a two-sided test
41 Observation points
42 Z-scores
43 Experimental design for nitrile rubber compound
    development (full factorial)
44 Experimental design for nitrile rubber compound
    development (quarter factorial)
45 Experimental specification for nitrile rubber compound
    development (quadratic response function)
46 Experimental design for nitrile rubber compound
    development (quadratic response function)
47 Hardness results
48 Cusum table for mean strength values
    D.1 Standard deviation comparisons
    F.1 Constants for t value calculations
    H.1 Three-factor analysis of variance
    H.2 Revised parameters
Figures
1 Gaussian (normal) density function
2 Double exponential density function
3 Weibull density function
4 Bimodal density function
5 Graphical representation of mean and median data for
    three compounds
6 Fatigue data: normal plot
7 Fatigue data: Weibull plot
8 Histogram of elongation at break data
9 Linear relationship between the dependent variable and
    a control variable
10 A two-level single factor experimental design
11 A two-level two factor experimental design
12 A two-level three factor experimental design
13 Quadratic relationship between the dependent variable
    and a control variable
14 Control chart of mean hardness values
15 Control chart of hardness standard deviation values
16 Control chart of mean tensile strength
17 Cusum chart of mean tensile strength
List of references

It is intended not to conflict with or replace existing British standards covering basic statistical techniques, but rather to complement them and provide examples of those techniques applied to particular rubber testing situations.

Committee
PRI/22
DevelopmentNote
Supersedes BS 5324(1976) Reviewed and confirmed by BSI, May, 2005. (04/2005) Supersedes 93/310632 DC (10/2005)
DocumentType
Standard
Pages
98
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

BS ISO 5725-5:1998 Accuracy (trueness and precision) of measurement methods and results Alternative methods for the determination of the precision of a standard measurement method
BS 5701:1980 Guide to number-defective charts for quality control
BS 2635:1955 Drafting specifications based on limiting the number of defectives permitted in small samples
BS 600:1935 The application of statistical methods to industrial standardization and quality control
BS 903-A9:1988 Physical testing of rubber Determination of abrasion resistance
BS 6001-1:1991 Sampling procedures for inspection by attributes Specification for sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection
BS ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Basic methods for the determination of repeatability and reproducibility of a standard measurement method
BS 903-A47:1982 Physical testing of rubber Analysis of multi-peak traces obtained in determinations of tear strength and adhesion strength
BS 2846-1:1991 Guide to statistical interpretation of data Routine analysis of quantitative data
BS 2846-4:1976 Guide to statistical interpretation of data Techniques of estimation and tests relating to means and variances
BS ISO 3534-1:2006 Statistics. Vocabulary and symbols General statistical terms and terms used in probability
BS ISO 3534-3:2013 Statistics. Vocabulary and symbols Design of experiments
BS ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results General principles and definitions
BS 6002-4.1:1994 Sampling procedures for inspection by variables. Specification for sequential sampling plans for percent nonconforming. Known standard deviation
BS 5700:1984 Guide to process control using quality control chart methods and cusum techniques
BS 6001-3:1993 Sampling procedures for inspection by attributes Specification for skip-lot procedures
ISO/TR 8550:1994 Guide for the selection of an acceptance sampling system, scheme or plan for inspection of discrete items in lots
BS 5703-2:1980 Guide to data analysis and quality control using cusum techniques Decision rules and statistical tests for cusum charts and tabulations
BS 6001-0:1996 Sampling procedures for inspection by attributes Introduction to the BS 6001 attribute sampling system
BS 2564:1955 Control chart technique when manufacturing to a specification, with special reference to articles machined to dimensional tolerances
BS 903-A25:1992 Physical testing of rubber Determination of low-temperature brittleness
BS 903-A51:1986 Methods of testing vulcanized rubber. Determination of resistance to tension fatigue
BS 5703-1:1980 Guide to data analysis and quality control using cusum techniques Introduction to cusum charting
ISO/TR 9272:2005 Rubber and rubber products Determination of precision for test method standards
BS 903-A16:1987 Physical testing of rubber Determination of the effect of liquids
BS 903-A2:1989 Physical testing of rubber Determination of tensile stress-strain properties
BS 7785:1994 Shewhart control charts
ISO/TR 11753:1992 Rubber and rubber products — Confidence intervals of repeatability and reproducibility values determined by inter-laboratory tests

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