Scimago Journal & Country Rank

Accreditation and Quality Assurance

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryChemical Engineering
Chemical Engineering (miscellaneous)

Chemistry (miscellaneous)

Safety, Risk, Reliability and Quality

Physics and Astronomy
Publisher Springer New York
Publication typeJournals
ISSN09491775, 14320517
Scope Accreditation and Quality Assurance (Accred. Qual. Assur.; "ACQUAL") publishes conceptual and practice-oriented articles on all aspects relevant to quality, transparency and reliability of measurement results in chemical and biological sciences. This is aimed at disseminating knowledge and contributing to the elimination of conceptual and technical barriers to intercontinental understanding ("CBU" and "TBU"). It is in this context that ACQUAL asks the authors for clarity in the presentation of their results by following international conventions or by defining deviations without ambiguity. The journal aims at serving the information needs of researchers, practitioners and decision makers alike. It provides problem solving for improved measurement practice, covers aspects of related education and training, and fosters cooperation between national and international bodies operating in accreditation and quality assurance of measurements in chemical and biological sciences. The journal is focusing on the following topics: Accreditation; Quality assurance; Tools for quality control; Quality management; Metrology in chemistry; Traceability of measurement results; Measurement uncertainty; Comparability and equivalence of measurement results; Verification and validation; Calibration; Statistical simulations; Purity assessment; Sampling; Interlaboratory comparison (PT, EQA); Reliability; Reference materials; Reference measurements, dissemination and propagation of reference values; Applied statistics for metrology; Concepts and terminology; Quantities and units.


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Chemical Engineering (miscellaneous)1999Q1
Chemical Engineering (miscellaneous)2000Q2
Chemical Engineering (miscellaneous)2001Q1
Chemical Engineering (miscellaneous)2002Q2
Chemical Engineering (miscellaneous)2003Q2
Chemical Engineering (miscellaneous)2004Q2
Chemical Engineering (miscellaneous)2005Q2
Chemical Engineering (miscellaneous)2006Q2
Chemical Engineering (miscellaneous)2007Q2
Chemical Engineering (miscellaneous)2008Q2
Chemical Engineering (miscellaneous)2009Q2
Chemical Engineering (miscellaneous)2010Q2
Chemical Engineering (miscellaneous)2011Q2
Chemical Engineering (miscellaneous)2012Q2
Chemical Engineering (miscellaneous)2013Q2
Chemical Engineering (miscellaneous)2014Q2
Chemical Engineering (miscellaneous)2015Q2
Chemical Engineering (miscellaneous)2016Q2
Chemical Engineering (miscellaneous)2017Q2
Chemical Engineering (miscellaneous)2018Q2
Chemical Engineering (miscellaneous)2019Q3
Chemistry (miscellaneous)1999Q2
Chemistry (miscellaneous)2000Q2
Chemistry (miscellaneous)2001Q2
Chemistry (miscellaneous)2002Q2
Chemistry (miscellaneous)2003Q2
Chemistry (miscellaneous)2004Q2
Chemistry (miscellaneous)2005Q2
Chemistry (miscellaneous)2006Q2
Chemistry (miscellaneous)2007Q2
Chemistry (miscellaneous)2008Q2
Chemistry (miscellaneous)2009Q2
Chemistry (miscellaneous)2010Q2
Chemistry (miscellaneous)2011Q2
Chemistry (miscellaneous)2012Q2
Chemistry (miscellaneous)2013Q2
Chemistry (miscellaneous)2014Q2
Chemistry (miscellaneous)2015Q2
Chemistry (miscellaneous)2016Q3
Chemistry (miscellaneous)2017Q3
Chemistry (miscellaneous)2018Q3
Chemistry (miscellaneous)2019Q3
Safety, Risk, Reliability and Quality1999Q1
Safety, Risk, Reliability and Quality2000Q2
Safety, Risk, Reliability and Quality2001Q1
Safety, Risk, Reliability and Quality2002Q2
Safety, Risk, Reliability and Quality2003Q2
Safety, Risk, Reliability and Quality2004Q2
Safety, Risk, Reliability and Quality2005Q2
Safety, Risk, Reliability and Quality2006Q2
Safety, Risk, Reliability and Quality2007Q2
Safety, Risk, Reliability and Quality2008Q2
Safety, Risk, Reliability and Quality2009Q2
Safety, Risk, Reliability and Quality2010Q2
Safety, Risk, Reliability and Quality2011Q2
Safety, Risk, Reliability and Quality2012Q2
Safety, Risk, Reliability and Quality2013Q2
Safety, Risk, Reliability and Quality2014Q2
Safety, Risk, Reliability and Quality2015Q2
Safety, Risk, Reliability and Quality2016Q3
Safety, Risk, Reliability and Quality2017Q3
Safety, Risk, Reliability and Quality2018Q3
Safety, Risk, Reliability and Quality2019Q3

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19990.618
Cites / Doc. (4 years)20000.591
Cites / Doc. (4 years)20010.546
Cites / Doc. (4 years)20020.349
Cites / Doc. (4 years)20030.410
Cites / Doc. (4 years)20040.709
Cites / Doc. (4 years)20050.513
Cites / Doc. (4 years)20060.643
Cites / Doc. (4 years)20070.676
Cites / Doc. (4 years)20080.639
Cites / Doc. (4 years)20090.691
Cites / Doc. (4 years)20100.727
Cites / Doc. (4 years)20110.815
Cites / Doc. (4 years)20120.818
Cites / Doc. (4 years)20130.821
Cites / Doc. (4 years)20140.899
Cites / Doc. (4 years)20150.889
Cites / Doc. (4 years)20160.724
Cites / Doc. (4 years)20170.579
Cites / Doc. (4 years)20180.683
Cites / Doc. (4 years)20190.565
Cites / Doc. (3 years)19990.618
Cites / Doc. (3 years)20000.562
Cites / Doc. (3 years)20010.614
Cites / Doc. (3 years)20020.343
Cites / Doc. (3 years)20030.475
Cites / Doc. (3 years)20040.763
Cites / Doc. (3 years)20050.517
Cites / Doc. (3 years)20060.615
Cites / Doc. (3 years)20070.672
Cites / Doc. (3 years)20080.730
Cites / Doc. (3 years)20090.693
Cites / Doc. (3 years)20100.740
Cites / Doc. (3 years)20110.815
Cites / Doc. (3 years)20120.858
Cites / Doc. (3 years)20130.931
Cites / Doc. (3 years)20140.935
Cites / Doc. (3 years)20150.911
Cites / Doc. (3 years)20160.793
Cites / Doc. (3 years)20170.575
Cites / Doc. (3 years)20180.698
Cites / Doc. (3 years)20190.578
Cites / Doc. (2 years)19990.636
Cites / Doc. (2 years)20000.536
Cites / Doc. (2 years)20010.491
Cites / Doc. (2 years)20020.431
Cites / Doc. (2 years)20030.472
Cites / Doc. (2 years)20040.777
Cites / Doc. (2 years)20050.486
Cites / Doc. (2 years)20060.645
Cites / Doc. (2 years)20070.701
Cites / Doc. (2 years)20080.743
Cites / Doc. (2 years)20090.721
Cites / Doc. (2 years)20100.735
Cites / Doc. (2 years)20110.927
Cites / Doc. (2 years)20120.974
Cites / Doc. (2 years)20130.993
Cites / Doc. (2 years)20140.922
Cites / Doc. (2 years)20150.969
Cites / Doc. (2 years)20160.732
Cites / Doc. (2 years)20170.613
Cites / Doc. (2 years)20180.784
Cites / Doc. (2 years)20190.691
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites199922
Self Cites200036
Self Cites200145
Self Cites200231
Self Cites200350
Self Cites200477
Self Cites200544
Self Cites200661
Self Cites200761
Self Cites200872
Self Cites200954
Self Cites201062
Self Cites201156
Self Cites201278
Self Cites201350
Self Cites201467
Self Cites201542
Self Cites201623
Self Cites201721
Self Cites201818
Self Cites20199
Total Cites199984
Total Cites2000109
Total Cites2001140
Total Cites200286
Total Cites2003121
Total Cites2004209
Total Cites2005171
Total Cites2006184
Total Cites2007234
Total Cites2008214
Total Cites2009232
Total Cites2010213
Total Cites2011225
Total Cites2012218
Total Cites2013215
Total Cites2014203
Total Cites2015185
Total Cites2016153
Total Cites2017104
Total Cites2018113
Total Cites201978
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19990.456
External Cites per document20000.376
External Cites per document20010.417
External Cites per document20020.219
External Cites per document20030.278
External Cites per document20040.482
External Cites per document20050.384
External Cites per document20060.411
External Cites per document20070.497
External Cites per document20080.485
External Cites per document20090.531
External Cites per document20100.524
External Cites per document20110.612
External Cites per document20120.551
External Cites per document20130.714
External Cites per document20140.627
External Cites per document20150.704
External Cites per document20160.674
External Cites per document20170.459
External Cites per document20180.586
External Cites per document20190.511
Cites per document19990.618
Cites per document20000.562
Cites per document20010.614
Cites per document20020.343
Cites per document20030.475
Cites per document20040.763
Cites per document20050.517
Cites per document20060.615
Cites per document20070.672
Cites per document20080.730
Cites per document20090.693
Cites per document20100.740
Cites per document20110.815
Cites per document20120.858
Cites per document20130.931
Cites per document20140.935
Cites per document20150.911
Cites per document20160.793
Cites per document20170.575
Cites per document20180.698
Cites per document20190.578
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents200313
Non-citable documents200425
Non-citable documents200538
Non-citable documents200633
Non-citable documents200740
Non-citable documents200842
Non-citable documents200948
Non-citable documents201049
Non-citable documents201151
Non-citable documents201263
Non-citable documents201361
Non-citable documents201452
Non-citable documents201532
Non-citable documents201618
Non-citable documents201716
Non-citable documents201814
Non-citable documents201915
Citable documents1999136
Citable documents2000194
Citable documents2001228
Citable documents2002251
Citable documents2003255
Citable documents2004274
Citable documents2005331
Citable documents2006299
Citable documents2007348
Citable documents2008293
Citable documents2009335
Citable documents2010288
Citable documents2011276
Citable documents2012254
Citable documents2013231
Citable documents2014217
Citable documents2015203
Citable documents2016193
Citable documents2017181
Citable documents2018162
Citable documents2019135
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents199989
Uncited documents2000137
Uncited documents2001158
Uncited documents2002198
Uncited documents2003191
Uncited documents2004196
Uncited documents2005260
Uncited documents2006219
Uncited documents2007246
Uncited documents2008208
Uncited documents2009244
Uncited documents2010205
Uncited documents2011207
Uncited documents2012187
Uncited documents2013177
Uncited documents2014164
Uncited documents2015135
Uncited documents2016122
Uncited documents2017134
Uncited documents2018104
Uncited documents2019100
Cited documents199947
Cited documents200057
Cited documents200170
Cited documents200253
Cited documents200377
Cited documents2004103
Cited documents2005109
Cited documents2006113
Cited documents2007142
Cited documents2008127
Cited documents2009139
Cited documents2010132
Cited documents2011120
Cited documents2012130
Cited documents2013115
Cited documents2014105
Cited documents2015100
Cited documents201689
Cited documents201763
Cited documents201872
Cited documents201950
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