This standard specifies the most commonly used character line spacings for office machines and data processing equipment.

定价： 570元 / 折扣价： 485 元 加购物车

This standard (1) lists the preferred and common sheet sizes of bond papers and index bristols and their applicable tolerances; (2) cross references to metric sizes, and (3) references a standard test method.

定价： 570元 / 折扣价： 485 元 加购物车

This standard (1) lists the preferred and common sheet sizes of bond papers and index bristols and their applicable tolerances; (2) cross references to metric sizes, and (3) references a standard test method.

定价： 570元 / 折扣价： 485 元 加购物车

This standard provides the following specifications for adding machine paper rolls: terminology; roll widths; roll length; paper substance and quality, thickness, finish, color, brightness, opacity, tearing and bursting strength; diameter of rolls; winding and cutting, core materials; diameter of core and spindle hole; roll end sealing; and quantity packaging and cartoning.

定价： 570元 / 折扣价： 485 元 加购物车

This standard provides the following specifications for adding machine paper rolls: terminology; roll widths; roll length; paper substance and quality, thickness, finish, color, brightness, opacity, tearing and bursting strength; diameter of rolls; winding and cutting, core materials; diameter of core and spindle hole; roll end sealing; and quantity packaging and cartoning.

定价： 570元 / 折扣价： 485 元 加购物车

This American National Standard provides specifications for format and recording for a 1/2-inch (12.7-mm), 9-track magnetic tape to be used for interchange among information processing systems, communication systems, and associated equipment utilizing a standard code for interchange as agreed upon by the interchange parties.

定价： 570元 / 折扣价： 485 元 加购物车

This American National Standard is intended to provide a format and recording standard for an 8000-bpi(315-bpmm) streaming 0.150-inch (3.81-mm)-wide, 4-track magnetic tape cassette to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing a standard code for interchange, as agreed upon by the interchange parties.

定价： 570元 / 折扣价： 485 元 加购物车

Specifies the general, physical, and magnetic requirements for interchangeability for the two-sided, 5.25-in (130-mm) flexible disk cartridge (for 13262 flux transitions per radian use) as required to achieve unformatted disk cartridge interchange among disk drives using 77 or 80 tracks per side and associated information processing systems.

定价： 570元 / 折扣价： 485 元 加购物车

Presents the minimum requirements for the mechanical and magnetic interchangeability of the cassette between information processing systems, using the physical recording density of 394 ftpmm (10 000 ftpi).

定价： 570元 / 折扣价： 485 元 加购物车

4. This standard specifies the general, physical, and magnetic requirements for interchangeability of the one- and two-sided, high-density, 90-mm (3.5-in) (nominal) flexible disk cartridge for 15 916 bits-per-radian (bpr) use as required to achieve unformatted disk cartridge interchange among disk drives using 80 tracks per side and associated information processing systems. The one- and two-sided flexible disk enclosed ina protective case and having one or two recording surfaces is of the type intended specifically for use with digital recording and reproducing equipment employing access mechanisms capable of positioning to these data tracks. (See caution notice below).

定价： 570元 / 折扣价： 485 元 加购物车

Establishes the format of information on 19-mm type ID-1 instrumentation digital cassettes. It specifies the dimensions and locations of the helical data, control, time code, and annotation tracks. Also, it defines the format and recording requirements of the data blocks forming the helical data record containing digital instrumentation and other associated data and specifies the content, format, and recording method for the control record. This standard also specifies the recording requirements for the longitudinal records contained in the annotation and the time code tracks.

定价： 570元 / 折扣价： 485 元 加购物车

Provides the mechanical, physical and magnetic properties of a low-friction disk with a diameter of 95 mm (3.740 inches) and with a typical recording density of 31.5 tracks per millimeter (tpmm) (800 trakcs per inch (tpi)) with 567 flux transitions per millimeter (ftpmm) (14 400 flux transitions per inch (ftpi)) at a radius of 23 mm (0.900 inch).

定价： 570元 / 折扣价： 485 元 加购物车

Provides the requirements for a tape cartridge to be used for information interchange among information-processing systems, communication systems, and associated equipment utilizing a standard code for information interchange as agreed upon by the interchange parties.

定价： 570元 / 折扣价： 485 元 加购物车

Provides the requirements for a tape cartridge to be used for information interchange among information-processing systems, communications systems, and associated equipment utilizing a standard code for information interchange as agreed upon by the interchange parties. This standard deals solely with the requirements for recording on magnetic tape.

定价： 570元 / 折扣价： 485 元 加购物车

Provides the requirements for a tape cartridge to be used for information interchange among information-processing systems, communications systems, and associated equipment utilizing a standard code for information interchange as agreed upon by the interchange parties. This standard deals solely with the requirements for recording on magnetic tape.

定价： 546元 / 折扣价： 465 元 加购物车