GB/T 4920-1985
Active
T/WJZZ 009-2021
Active
Group standards
T/WJZZ 009-2021 The overall calibration specification for particle number concentration measurement instruments
T/WJZZ 009-2021 The overall calibration specification for particle number concentration measurement instruments
Price:
$ 20.00
Basic Information
Standard Code:
T/WJZZ 009-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Measurement
ICS Name:
Emission limits for mobile sources
Publish Date:
2021-12-06
Implement Date:
2021-12-06
Scope
Main technical content: This document specifies the terms and measurement units, measurement characteristics, calibration conditions, calibration items, and calibration methods for the overall metrological calibration of particle number concentration measurement instruments. It also describes the expression of calibration results and the time interval for recalibration. This document is applicable to the overall calibration of particle number concentration measurement instruments based on the CPC method or the DC method (hereinafter referred to as PN detectors), which includes the heating sampling tube, particle counter, and volatile particle remover. Other instruments with different measurement ranges should refer to this document for implementation.
Development Information
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