GB/T 13277.6-2021Compressed air - Part 6: Test methods for gaseous contaminant content (English PDF)

1 Scope

This document specifies the selection guidelines and applicable methods, sampling techniques, measurement methods, standards for the measurement of gaseous pollutants in compressed air:

Accuracy status, evaluation of test results, uncertainty and test report:

This document is applicable to carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen monoxide, nitrogen dioxide, C1~C5 range (large

Refer to GB/T 13277:5) for the measurement of gaseous pollutants such as hydrocarbons at or equal to C6:

The measurement methods given in this document are also applicable to other gases:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document:

GB/T 786:1 Graphical symbols and circuit diagrams of fluid transmission systems and components - Part 1: Graphical symbols (GB/T 786:1-

2021, ISO 1219-1:2012, IDT)

GB/T 13277:1 Compressed Air Part 1: Pollutant Purification Level (GB/T 13277:1-2008, ISO 8573-1:2001,

MOD)

3 Terms and definitions, units and symbols

3:1 Terms and Definitions

The terms and definitions defined in GB/T 13277:1 apply to this document:

3:2 Units and symbols

The symbols specified in GB/T 786:1 apply to this document: See Table 1 for the description of units and symbols used in this document:

Table 1 Preferred units and symbols used in this document

Unit/Symbol Description

MPa gauge pressure, 1MPa=1000000Pa mL/m3 volume fraction, expressed as milliliters per cubic meter

µg/g mass fraction, expressed as micrograms per gram

1/102(m3/m3) volume fraction

MPa(a) absolute pressure […]