G82 磁记录材料基础标准与通用方法 标准查询与下载

DIN 108-55:1991 幻灯机和幻灯片.直式片盒5×5-36和5×5-50.鉴定程序

The standard specifies a method of type testing for giving the DIN-testing and inspection mark for straight cartridge 5 * 5 - 36 and 5 * 5 - 50 in accordance with DIN 108 part 8 and DIN 108 part 9.

Slide projectors and slides; straight cartridge 5 × 5-36 and 5 × 5-50; certification scheme

BS 7080-1:1989 用于数据交换的 6.30 毫米（0.25 英寸）磁带盒的构造和使用指南 使用 GCR 以 394ftpmm（10000ftpi）、39cpmm（1000cpi）进行记录 机械、物理和磁性能

ISO 8462 specifies the characteristics of a tape cartridge loaded with magnetic tape 6,30 mm (0.25 in) wide intended for digital recording at physical recording densities of 252 ftpmm (6 400 ftpi) and 394 ftpmm (10 000 ftpi). ISO 8462/2 specifies a recording method and a data format in-tended for use in the streaming mode of operation. Two alter-native track formats are specified : — a 4-track format, and — a 9-track format. This part of ISO 8462 specifies the mechanical, physical and magnetic properties of a 6,30 mm (0.25 in) wide magnetic tape cartridge and methods for testing the surface quality of the tape. It also specifies the environmental conditions under which the cartridge shall be tested and operated, and recommends condi-tions for storage. ISO 8462/1 and ISO 8462/2 provide for the physical inter-change of cartridges between data processing systems, and specify a data format. A labelling standard for tape cartridges used in the streaming mode is under study. The availability of such a labelling standard will provide for full data interchange between data processing systems. NOTE —Numeric values in the SI and/or Imperial measurement system in this part of ISO 8462 may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, but the two should be neither intermixed nor reconverted. The original design was made using the imperial measurement system.

Guide to construction and use of 6.30 mm (0.25 in) magnetic tape cartridge for data interchange, using GCR recording at 394 ftpmm(10000 ftpi), 39 cpmm (1000 cpi). Mechanical, physical and magnetic properties

ISO 4324:1977 表面活性剂 粉体和颗粒 休止角的测定

The measurement is carried out in the following way: Determination of the base angle of the cone obtained by passing a given volume of the product in the form of powder or granules through a special funnel placed at a fixed height above a completely flat and level plate. The method is also applicable to other powders and granules with comparable properties.

Surface active agents; Powders and granules; Measurement of the angle of repose

JIS C 5542:1977 录音磁带的试验方法

Test method for sound recording tapes

ANSI/EIA 339:1967 磁带层间粘附性的测试方法

Test Method - Layer-to-Layer Adhesion of Magnetic Tape