British Standards Institution. Abstract of Draft British Standard Specification for Density Bottles (CD (C) 9870)

The limit system recommended by the British Standards Institution (B.S.I.) was issued first in 1906 and again in 1924, under the title of British Standard Specification No. 164, “Limits and Fits for Engineering”. The engineering industry of this country, it is contended, has found it impracticable to use the tables contained in these publications, and it would appear desirable to ascertain the reason for this striking neglect of so important a publication. There are numerous instances where certain limits have been taken from these publications, but the author is not aware of a single instance where the B.S.I, system is the only system used, and it is claimed that it supplies all the reasonable requirements of a designing draughtsman engaged on ordinary commercial engineering work. This state of affairs cannot be considered as satisfactory and the present paper is put forward in the hope that it will form the basis of a discussion, the findings of which will assist the appropriate committee in making suitable revisions to this British Standard publication. The paper shows how a genuine attempt was made to use the B.S.I, system for every problem of design and manufacture for which standard limits seemed desirable, and how the system was modified only when it was found impracticable to use it in its original form.

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British standard specification for the electrical performance of transformers for X-ray purposes (No. 326-1928)

Irish Journal of Medical Science (1971 -) ◽

10.1007/bf02953810 ◽

1928 ◽

Vol 3 (12) ◽

pp. 737-737

Keyword(s):

Electrical Performance ◽

Standard Specification ◽

British Standard ◽

X Ray

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Study on Rajkoroi (Albizia richardiana) for Ply and Particleboard Manufacture

Journal of Non Timber Forest Products ◽

10.54207/bsmps2000-2017-33oelf ◽

2017 ◽

Vol 24 (4) ◽

pp. 191-193

Author(s):

Md. Rahaman ◽

Khurshid Akhter ◽

D. Biswas ◽

M.W. Sheikh

Keyword(s):

Bending Strength ◽

Unit Area ◽

Urea Formaldehyde ◽

Solid Content ◽

Shear Load ◽

Standard Specification ◽

British Standard ◽

Press Temperature ◽

Albizia Richardiana ◽

Press Time

The suitability of Rajkoroi (Albizia richardiana) for plywood and particleboard manufacture has been determined. Study shows that 1.5mm thick smooth and figured veneer can be peeled and dried easily. Three-ply plywood were made using veneer of this species bonded with liquid urea formaldehyde glue of 50% solid content extended with wheat flour and catalyzed with 2% hardener (ammonium chloride) under the three specific pressures, such as 1.05 N/mm2,1.40 N/mm2, 1.76 N/mm2 in three replications at 6 minute press time and 120°C press temperature. Dry and wet shear test were conducted on the samples and their shear load at failure per unit area and percentage of wood failure were determined. 1.05 N/mm2 Pressure was found best for the manufacture. The particleboards of Rajkoroi (Albizia richardiana) were tested for determining the strength & dimensional stability. Tensile strength passed the German and British Standard Specification. Bending strength found to be nearest to the Bureau of Indian Standard but lower than German and British standard Specification.

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