ISO 14596:2007 specifies a method for the determination of the sulfur content of liquid petroleum products, additives for petroleum products, and semi-solid and solid petroleum products that are either liquefied by moderate heating or soluble in organic solvents of negligible or accurately known sulfur content. The method is applicable to products or additives having sulfur contents in the range…
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:<br />
- to define a group of acoustic parameters that can be measured on a physically sound basis;<br />
- to define a second group of…
Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields up to 40 MHz
IEC 62127-2:2007 specifies absolute hydrophone calibration methods and relative (comparative) hydrophone calibration methods. This standard is applicable to:<br />
- hydrophones used for measurements made in water and in the ultrasonic frequency range up to 40 MHz;<br />
- hydrophones employing circular piezoelectric sensor elements, designed to measure the pulsed wave and continuous…
Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields up to 40 MHz
IEC 62127-2:2007 specifies absolute hydrophone calibration methods and relative (comparative) hydrophone calibration methods. This standard is applicable to:
- hydrophones used for measurements made in water and in the ultrasonic frequency range up to 40 MHz;
- hydrophones employing circular piezoelectric sensor elements, designed to measure the pulsed wave and continuous wave ultrasonic fields…
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 %.
