- 行业: Quality management
- Number of terms: 30079
- Number of blossaries: 0
- Company Profile:
The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from 162 national standards institutes. Founded on February 23, 1947, ISO defines and promotes quality standards for a variety of industrial and commercial fields.
Acoustics — Reference zero for the calibration of audiometric equipment. Reference levels for narrow-band masking noise.
Industry:Quality management
Acoustics — Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz.
Industry:Quality management
Acoustics — Reference zero for the calibration of audiometric equipment. Reference threshold of hearing under free-field and diffuse-field listening conditions.
Industry:Quality management
Technical drawings — Tolerancing of linear and angular dimensions.
Industry:Quality management
Photography — Processing chemicals. Specifications for anhydrous sodium sulfite.
Industry:Quality management
Photography — Processing chemicals. Specifications for potassium bromide.
Industry:Quality management
Photography — Processing chemicals. Specifications for p-methylaminophenol sulfate.
Industry:Quality management
Photography — Processing chemicals. Specification for hydroquinone.
Industry:Quality management
Photography — Processing chemicals. Specification for anhydrous sodium carbonate and sodium carbonate monohydrate.
Industry:Quality management
