The sales tax in the Atlantic Provinces, which is a combination of the GST and PST.

Harmonized Sales Tax. is the single harmonized value-added tax that will replace the Goods and Services Tax (GST) and the provincial retail sales taxes in Nova Scotia, New Brunswick, and Newfoundland and Labrador on April 1, 1997. It will apply at a rate of 15 per cent to those goods and services that are currently subject to GST.

(see Harmonized Sales Tax).

High Speed Train introduced by British Rail in 1977 with power cars at each end of the train.

igh peed echnology, is a proprietary signaling scheme, design, and error control protocol for high-speed modems. It was designed by USRobotics, Inc. HST incorporates trellis-coded modulation for greater immunity from variable phone line conditions and asymmetrical modulation for more efficient use of the phone channel at speeds of 4800 and above. It also incorporates MNP-compatible error control procedures adapted to asymmetrical modulation.

US Robotics proprietary high-speed modem standard

Abbreviation for heat soak test. This is an additional form of heat-treatment, which is carried out after the thermal toughening process in order to reduce the risk of spontaneous breakage of toughened glass in service due to nickel sulphide inclusions.

Hypersonic transport

Hubble Space Telescope.

Hawaiia Standard Time

shorthand for Half-Square Triangles.

Height of storm snow

Health Sciences and Technology

History + Host (file name extensions)