Ultrasonics - Hydrophones - Part 1: Measurement and characterization of medical ultrasonic fields up...
IEC 62127-1:2007 specifies methods of use of calibrated hydrophones for the measurement in liquids of acoustic fields generated by ultrasonic medical equipment operating in the frequency range up to 40 MHz. The objectives of this standard are:
- to define a group of acoustic parameters that can be measured on a physically sound basis;
- to define a second group of parameters that can be derived…
Rice — Determination of amylose content — Part 2: Routine methods
ISO 6647-2:2007 specifies two simplified routine methods for the determination of the amylose mass fraction of milled rice, non-parboiled. The main difference between the two methods is in the dispersion procedure: method A specifies hot, and method B cold, dispersion.
Both methods are applicable to rice with amylose mass fraction higher than 5 %.
Rice — Determination of amylose content — Part 1: Reference method
ISO 6647-1:2007 specifies a reference method for the determination of the amylose content of milled rice, non-parboiled. The method is applicable to rice with an amylose mass fraction higher than 5 %.
ISO 6647-1:2007 can also be used for husked rice, maize, millet and other cereals if the extension of this scope has been validated by the user.
Electrostatics - Part 5-2: Protection of electronic devices from electrostatic phenomena - User guid...
This technical report has been developed to support IEC 61340-5-1. The controls and limits referenced in IEC 61340-5-1 were developed to protect devices that are susceptible to discharges of 100 V or greater using the human body model test method. However, the general concepts are still valid for devices that are susceptible to discharges of less than 100 V. The main changes with respect to the…
Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage...
The rules of this Part of IEC 60364 are intended to provide requirements for the safety of electrical installations in the event of voltage disturbances and electromagnetic disturbances generated for different specified reasons. This second edition of IEC 60364-4-44 cancels and replaces the first edition published in 2001, amendment 1 (2003) and amendment 2 (2006). The contents of the corrigenda…
Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment
IEC 61157:2007 specifies a standard means and format for the reporting of the acoustic output of medical diagnostic ultrasonic equipment. The numerical values for reporting purposes represent the average values for the maximum output conditions for a given discrete- or combined-operating mode and are derived from measurements made in water. Intensity parameters are specified in this standard, but…
Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment
IEC 61157:2007 specifies a standard means and format for the reporting of the acoustic output of medical diagnostic ultrasonic equipment. The numerical values for reporting purposes represent the average values for the maximum output conditions for a given discrete- or combined-operating mode and are derived from measurements made in water. Intensity parameters are specified in this standard, but…
