Biometric tests

The reference material for the biometric test in PrEN 14046, as in EN 13432 and ASTM D5338-98, is pure crystalline cellulose since it can be shown to be 68% converted to carbon dioxide at 65 C in 32 days but all other constituents of natural origin are excluded from the biodegradability test because they are considered to be biodegradable by definition . CEN TC 249 explains the distinction between natural and synthetic polymers as follows [34] ... 

Commercial polyolefins show no significant reduction in molar mass in typical ambient biometric tests over many months or even years. The resistance of hydrocarbon polymers to biodegradation during use is one of their major advantages in agricultural application over bio-based plastics. The useful life of photo-biodegradable polyolefins is controlled commercially by appropriate transition metal complexes in which the ligands are... 

It is now accepted by CEN (TC 249/WG9) that, in the case of oxo-biodegradable polymers, biometric tests should be preceded by weathering tests (UV exposure in a weatherometer) before mineralisation. This together with the eco-tests, shown in simplified form in Fig. 7, provides a basis for ensuring that not only is the carbon of the plastic ultimately converted to useful fertiliser but also that no non-biodegradable toxic products are produced in the process. 

Biometric test for the mineralisation of degradable plastics in compost. ... 

The development of better varieties for dry conditions conventionally involves extensive selection and testing for yield performance over diverse environments using various biometrical approaches (Hanson Robinson, 1963). These empirical methods have led to the development of drought-... 

Harter, H. L., Critical Values for Duncan s New Multiple Range Test, Biometrics, December 1960, 671-685. 

Ruberg, S. J., Pooling Data for Stability Studies Testing the Equality of Batch Degradation Slopes, Biometrics 47, September 1991, 1059-1069. 

The first draft of the new requirement had draconian security requirements, softened (as is common) after a comment period Demands for biometric identifiers were replaced with password control options. But the revised final regulation was still broad in scope and necessitated extensive documentation and testing for all systems used in the industry (with even stronger controls if the user opted for electronic signatures). 

Some HS samples were also tested, either alone or in combination with some mutagenic compounds, for their possible antitoxic effect on the seedlings of some plant species. In particular (a) the sample ASHA at a concentration of 10 or 100 mg L-1, alone or in combination with 1 or 10 mg L 1 of ALA, was tested on T. turgidum and (b) samples SHHA, PHA, PFA, LHA, SHA and SFA at concentrations of 20 or 200 mg L-1, alone or in combination with 10 mg L 1 MH, were tested on V. faba. The antitoxic effect was evaluated by measuring some biometrical parameters such as... 

Tarone, R.E. (1982). The use of historical control information in testing for a trend in proportions. Biometrics 38 215-220. 

Armitage, P. (1955). Tests for linear trends in proportions and frequencies. Biometrics. 11 375-386. 

Cochran, W.F. (1954). Some models for strengthening the common x2 tests. Biometrics 10 417-451. 

Cox, D.R. and Stuart, A. (1955). Some quick tests for trend in location and dispersion. Biometrics 42 80-95. 

Duncan, D.B. (1955). Multiple range and multiple F tests. Biometrics 11 1-42. 

Harter, A.L. (1960). Critical values for Duncan s new multiple range test. Biometrics 16 671— 685. 

Mendell, N.R., Finch, S.J. and Thode, H.C., Jr. (1993). Where is the likelihood ratio test powerful for detecting two component normal mixtures Biometrics 49 907-915. 

O Brien PC, Pleming TR. A multiple testing procedure for clinical trials. Biometrics 1979 35 549-56. 

Westlake WJ (1981) Bioequivalence testing - a need to rethink (Reader Reartion Response) Biometrics, 37, 589-594... 

In Chapters III and IV, tables for estimating standard devistion from the range, and criteria for testing for extreme values are reproduced with permission of W.J. Dixon from Introduction to Statistical Analysis by Dixon and Massey (McGraw-Hill), and Criteria for Testing Extreme Mean by Dixon, Biometrics 9 (1953). 

Bancroft, T. A. (1964), Analysis of inference for incompletely specified models involving the use of preliminary test(s) of significance, Biometrics, 20,427-442. 

Ruberg,S., and Stegeman, J. W. (1991), Pooling data for stability studies Testing the equality of batch degradation slopes, Biometrics, 47,1059-1069. 

Test identification code/password or biometric electronic signature/de-vices (as applicable)... 

The above hardware was used to create at NASK a multimodal biometric database BioBase, which at present contains images of iris, face, hand shape, and handwritten signatures, of couple of hundred volunteers. BioBase will be employed here to test the proposed approaches. 

Dl] Mansfield, A. J. and J.L. Wayman, Best Practises in Testing and Reporting Performance of Biometric Devices, NPL Report CMSC 14/02, August 2002... 

The expectation of combined effects from mixture exposure is most often founded in the basic principles of toxicology and pharmacology (Loewe and Muischnek 1926a Bliss 1939 Plackett and Hewlett 1952). The first strictly pharmacological ideas formulated (Loewe and Muischnek 1926a) were supplemented by biometrical considerations. Later, Bliss (1939), a biologist and a biometrician, provided the first consistent framework, as depicted in Table 5.2 (Plackett and Hewlett 1952). In this framework, the main ideas focused on the presence or absence of interactions (commonly referred to as interactive and noninteractive joint action) with respect to responses observed in test organisms, and the presence of the same or a different mode of action. 

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