BS EN ISO 13758:1997+A1:2020
$86.31
Liquefied petroleum gases. Assessment of the dryness of propane. Valve freeze method
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 12 |
This International Standard describes a procedure for the assessment of whether liquefied petroleum gas (LPG) hydrocarbons consisting predominantly of propane and/or propene are sufficiently dry to avoid malfunctions in pressure-reducing systems installed in domestic, industrial and automotive LPG applications.
The test is normally used as a functional pass/fail test in which the behaviour of the product is assessed in a specially designed and calibrated regulator valve.
NOTES
If excessive dissolved water is contained in the LPG under test, it will cause freezing and blockage of a test regulator valve, which is an indication that the product could cause malfunctions in commercial pressure-reducing systems.
If the product under test contains an antifreeze agent, the time taken for the test valve to freeze is not necessarily a function of dryness, but may provide an indication of the tendency of the product to cause freezing in pressure-reducing regulators under service conditions.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative reference 3 Definition 4 Principle |
| 8 | 5 Apparatus 6 Sampling 7 Apparatus verification 8 Procedure |
| 9 | 9 Expression of results 10 Precision 11 Test report |
| 10 | Annex A (normative) Verification of the correct flow rate through the valve |
