G 68
CAP. 60]
Import and Export (Strategic Commodities) Regulations
[1988 Ed.
[Subsidiary]
(1) A resolution over their full scale of ±0.1 micrometre or better; and
(2) An accuracy of ±1 part per million or better;
Technical Note:
Standard temperatures and standard pressures as indicated in IEC Publication 160.
(d) Particle measuring systems employing helium-neon "lasers", designed for measuring particle size and concentration in gases, which have both of the following characteristics:
(i) Capable of measuring particle sizes of 0.3 micrometre or less; and
(ii) Capable of characterising Class 10 clean air or better.
Technical Notes:
1.
2.
3.
4.
"Tunable" refers to the ability of a "laser" to produce an output at any wavelength within its tuning range. A line-selectable "laser" which can operate only on discrete wavelengths is not considered tunable.
The term "specially designed components" is intended, among other things, to include active and passive components in semi-fabricated forms as well as in fabricated forms.
A "laser" is an assembly of components to produce a coherent light which is amplified by stimulated emission of radiation.
"Equipment containing lasers" uses coherent light in the equipment for a certain application.
Notes:
1. Nothing in the following shall be construed as permitting the export of technology for the following specially designed components for "lasers", except for the minimum technology for their use (i.e. installation, operation and maintenance): Sub-item (a) does not embargo uncooled, unsegmented mirrors with glass or dielectric substrates for use as end reflectors for laser resonators. (For segmented mirrors, see Item IL 1556.)
2.
This item is intended to cover semiconductor "lasers" but not non-coherent light-emitting diodes and Assemblies or integrated circuits containing such light-emitting diodes. (see Item L 1544 and 1564).
For "laser" feedback systems and "laser" interferometers, see also Item IL 1093 (c).
Not used.
3.
4.
5.
Not used.
6.
Not used.
7.
Not used.
8.
Not used.
IL 1526
Cable and optical fibres, and components and accessories, as follows-
(a) Underwater communication cable, as follows:
(1) Reversed-twist, double-armoured cable used for towing or suspending and
communicating with submerged devices;
(2) Unarmoured or single-armoured ocean cable having an attenuation of 1.62 dB/km (3.0 dB per nautical mile) or less, measured at a frequency of 600 kHz;
(b) Coaxial cable with an inner diameter of the outer conductor of the core greater
than 14 mm (0.551 inch), having:
(1) An air dielectric in which the spacing is accomplished by discs, beads, spiral,
screw or any other means;
(2) A foam dielectric and a solid copper or aluminium outer conductor;
Note:
Technology for the manufacture of foam dielectrics used in cables remains free from embargo.