New Issues
B.S.
3900 : — Methods of test for paints—
Group C. Tests associated with paint film
formation.
Part C5 : 1970 Determination of film thickness.
Part C6 : 1970 Determination of fineness-of-
grind.
3907 : — Methods for the analysis of magnesium and
magnesium alloys—
3907 : Part 11 : 1970 Silicon in magnesium and
magnesium alloys (photometric method).
4161 : — Plate constructed positive displacement diaphragm
meters—
4161 : Part 4 : 1970 For a pressure of 350 mbar
(5 lbf/in²) and up to 170 cubic meters (6000
cubic feet) per hour rating.
4167 : — Electrically-heated catering equipment—
4167 : Part 4 : 1970 Deep fat fryers.
4167 : Part 10 : 1970 Sterilising sinks.
4167 : Part 11 : 1970 Hot cupboards.
4286 : — Steel ducting for grain and fodder conveying—
4286 : Part 2 : 1970 Metric units.
4359 : — Methods for the determination of specific surface
of powders—
4359 : Part 3 : 1970 Calculation from the
particle size distribution.
4408 : — Recommendations for non-destructive methods of
test for concrete—
4408 : Part 3 : 1970 Gamma radiography of
concrete.
4509 : — Method of evaluating transmitters for use in
process control systems—
4509 : Part 2 : 1970 Instruments with electrical
inputs and analogue d.c. outputs.
4509 : Part 3 : 1970 Filled system temperature
transmitters.
4555 : 1970 High efficiency dust respirators.
4558 : 1970 Positive pressure, powered dust respirators.
4559 : 1970 The preparation of gaseous mixtures.
4562 : 1970 Dimensions and film pull out force for 35 mm
cassettes (film magazines) for still picture
use.
4571 : 1970 On-load tap-changers for power transformers.
4573 : 1970 2-pin reversible plugs and shaver socket-outlets.
4574 : 1970 Recommendation for the determination of the ink
absorbency of paper and board by use of K and
N ink.
4575 : 1970 Hydraulic power, transmission and control
systems for industrial equipment.
4576 : — Unplasticised PVC rainwater goods—
4576 : Part 1 : 1970 Half-round gutters and
circular pipe.
4577 : 1970 Materials for resistance welding electrodes and
ancillary equipment.
4578 : 1970 Performance requirements for hardness of, and
air flow through, infants pillows.
4580 : 1970 Number designation of organic refrigerants.
4581 : 1970 Dimensions of flanges for the mounting of plain
grinding wheels.
4582 : — Fine pitch gears—
4582 : Part 1 : 1970 Involute spur and helical
gears.
4583 : 1970 Methods of test for higher alcohols.
4584 : — Metal-clad base materials for printed circuits—
4584 : Part 1 : 1970 Methods of test.
4585 : — Methods of test for spices and condiments—
4585 : Part 1 : 1970 Determination of extrane-
ous matter.
4585 : Part 2 : 1970 Determination of moisture
content (entrainment method).
4585 : Part 3 : 1970 Determination of total,
water-soluble, water-insoluble and acid-insol-
uble ash.
4585 : Part 4 : 1970 Determination of alcohol-
soluble extract.
4585 : Part 5 : 1970 Determination of cold
water soluble extract.
4585 : Part 6 : 1970 Determination of non-
volatile ether extract.
4587 : 1970 Recommendations for the selection of apparatus
and techniques for the analysis of gases by gas
chromatography.
4589 : 1970 Abbreviations for rubber and plastics compound-
ing materials.
4592 : 1970 Industrial open type metal flooring and stair
treads.
4593 : 1970 Ginger (whole, in pieces, and ground).
4594 : 1970 Pimento (allspice) (whole and ground).
4595 : 1970 Black pepper and white pepper (whole and
ground).

New Issues
B.S.
4596 : 1970 Cardamoms.
4597 : 1970 General requirements and methods of test for
multilayer printed wiring boards using plated
through holes.
4598 : 1970 Dental impression plaster.
4599 : 1970 Dimensional features of optical sound recording
on 8 mm (Type S) motion picture film with
picture.
4600 : 1970 Method for determination of dimensional change
of elastic fabrics during washing and drying.
4601 : 1970 Electroplated coatings of nickel plus chromium
on plastics materials.

Revised standards
BS
66 and 99 : 1970 Cast copper alloy pipe fittings for use with
screwed copper tubes.
171 : 1970 Power transformers.
215 : — Aluminium conductors, and aluminium conductors
steel-reinforced, for overhead power trans-
mission—
215 : Part 1 : 1970 Aluminium stranded conduc-
tors.
215 : Part 2 : 1970 Aluminium conductors,
steel-reinforced.
449 : — The use of structural steel in building—
449 : Part 1 : 1970 Imperial units.
607 : — Concrete poles for electrical transmission and
traction systems—
607 : Part 2 : 1970 Metric units.
633 : 1969 Cotton selvedge tapes and webbing for electrical
purposes.
967 : 1970 Identity photographs.
1407 : 1970 High carbon bright steel (silver steel).
1444 : 1970 Cold-setting casein adhesive powders for wood.
1701 : 1970 Air filters for air supply to internal combustion
engines and compressors other than for aircraft.
1835 : 1970 2-ethylhexan-1-ol.
1837 : 1970 Methods for the sampling of iron, steel, perma-
nent magnet alloys and ferro-alloys.
1850 : 1970 Elastic flat braids containing natural rubber with
cotton rayon or nylon.
2547 : 1970 Basic dimensions of cones and tubes for winding
textile yarns.
2898 : 1970 Wrought aluminium and aluminium alloys for
electrical purposes. Bars, extruded round tube
and sections.
2903 : 1970 Higher tensile steel hooks.
2930 : 1970 Surgical spring trusses.
2965 : 1970 Dental chisels, excavators, probes, and scalers.
3242 : 1970 Aluminium alloy stranded conductors for over-
head power transmission.
3271 : 1970 Surgical elastic band trusses.
3396 : — Woven glass fibre fabrics for plastics reinforce-
ment—
3396 : Part 3 : 1970 Finished fabrics for use
with polyester resin systems.
3456 : — The testing and approval of household electrical
appliances—
3456 : Part 2 : 1970 Particular requirements.
Section 2.4 Electric irons, ironers and press-
ing machines.
3456 : Part 2 : 1970 Particular requirements.
Section 2.6 Frying pans, grills, plate warmers,
and other dry cooking appliances.
3456 : Part 2 : 1970 Particular requirements.
Section 2.7 Stationary non-instantaneous
water heaters.
3456 : Part 2 : 1970 Particular requirements.
Section 2.9 Clothes drying cabinets and towel
rails.
3486 : — Wheels for agricultural machinery, implements
and trailers—
3486 : Part 2 : 1970 Tyre and rim sizes.
3586 : 1970 Analogue direct current signals for telemetry and
control.
3690 : 1970 Bitumens for road purposes.
3939 : — Graphical symbols for electrical power, tele-
communications and electronics diagrams—
3939 : Section 24 : 1970 Aerials and radio
stations.
3939 : Section 25 : 1970 Frequency spectrum
diagrams.
3939 : Section 26 : 1970 Symbols for topograph-
ical diagrams.
4148 : — Abbreviation of titles of periodicals—
4148 : Part 1 : 1970 Principles.
4169 : 1970 Glued-laminated timber structural members.
4216 : 1970 Coated knitted fabrics for upholstered furniture
(PVC types).