Printed boards - Part 5: Specification for single and double sided printed boards with plated-throug...
Defines the characteristics to be assessed, the test methods to be used and establishes uniform requirements for judging properties and dimensions of single and double sided printed boards with plated-through holes. This standard is intended as a basis on which agreements between purchaser and vendor can be made.
Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values
Applies to 32 kHz quartz crystal units for wrist watches. Gives methods of measurement of resonance frequency, resonance resistance, frequency-temperature dependence and frequency pulling. Lays down test methods in accordance with IEC 68-2-6, 68-2-20, 68-2-21 and 68-2-27.
1. Scope
1.1 This Standard sets forth safety requirements and standards for the
sub-assemblies and assemblies of regular bicycles, as well as
recommended safety measures for their use and care.
1.2 Special bicycles, such as track bicycles design for use on racing
tracks and which may not have a normal braking system or other
operating systems…
1. Purpose, Scope and Application
1.1 Purpose
The purpose of this standard is to establish the requirements and test procedures for paper to be used in Optical Character Recognition (OCR) Systems.
1.2 Scope
This standard contains basic definitions, measurement requirements, specifications, and recommendations for papers used with optical character recognition readers.…
1. SCOPE
1.1 This standard applies to metric squares used by carpenters in determining
angles when fabricating parts from wood or other materials. Squares in
accordance with this standard shall be graduated with the International System
of Measurement (SI) Units. This standard will eventually supersede Imperial
graduated carpenter's squares now covered by CGSB 39-GP-21.
Characteristics of string insulator units of the long rod type
Prescribes specified values for the electrical and mechanical characteristics and for the principal dimensions of string insulator units of the long rod type with insulating parts of ceramic material intended for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. The smallest insulator unit standardized has a lighting impulse withstand voltage…
Methods for measuring the performance of electric household coffee makers
States and defines the principal performance characteristics for electric coffee makers, which are of interest to the user and describes the standard methods for measuring these characteristics.
