
【国外标准】 Standard Test Method for Vapor Pressure of Liquefied Petroleum Gases (LPG) (Expansion Method)
本网站 发布时间:
2024-02-28
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>

适用范围:
5.1 Information on the vapor pressures of liquefied petroleum gas is pertinent to selection of properly designed storage vessels, shipping containers, and customer utilization equipment to ensure safe handling of these products.5.2 Determination of the vapor pressure of liquefied petroleum gas is important for safety reasons to ensure that the maximum operating design pressures of storage, handling, and fuel systems will not be exceeded under normal operating temperature conditions.5.3 For liquefied petroleum gases, vapor pressure can be considered a semi-quantitative measure of the amount of the most volatile material present in the product.5.4 This test method uses a small sample volume and excludes any manual handling of a measuring chamber under high pressure.1.1 This test method covers the use of automatic vapor pressure instruments to determine the vapor pressure of liquefied petroleum gas products at a temperature of 37.8 °C, vapor to liquid ratio of 0.5:1, and pressures from 200 kPa to 1550 kPa on a sample volume of 3.33 mL.1.2 This test method is applicable to the determination of vapor pressures of liquefied petroleum gas products at temperatures from 37.8 °C to 70 °C, vapor to liquid ratios of 0.1:1 to 4:1, and pressures up to 3500 kPa; however, the precision of the test method (see Section 15) has only been determined for a vapor to liquid ratio of 0.5:1, at a temperature of 37.8 °C, and a pressure range from 300 kPa to 1500 kPa.NOTE 1: This test method is not intended to determine the true vapor pressure of LPG samples, but rather determine and report the vapor pressure of LPG at the 37.8 °C temperature and 0.5:1 vapor to liquid ratio as the Test Method D1267 method.NOTE 2: This test method is not a true vapor pressure method and will not measure the full contribution from any dissolved gases such as nitrogen or helium if they are present. The contribution of light gases to the measured vapor pressure is highly dependent on the test temperature, type of gas, and V/L ratio of the test.1.3 The values stated in SI units are to be regarded as standard.1.3.1 Exception—Non-SI units are included in parentheses for information only.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see Appendix X2.
标准号:
ASTM D6897-16
标准名称:
Standard Test Method for Vapor Pressure of Liquefied Petroleum Gases (LPG) (Expansion Method)
英文名称:
Standard Test Method for Vapor Pressure of Liquefied Petroleum Gases (LPG) (Expansion Method)标准状态:
Active-
发布日期:
-
实施日期:
出版语种:
- 推荐标准
- ASTM E316-17 Standard Test Method for Determination of Iron in Manganese Ores by Hydrogen Sulfide Reduction-Dichromate Titrimetry
- ASTM E3161-21 Standard Practice for Preparing a Pseudomonas aeruginosa or Staphylococcus aureus Biofilm using the CDC Biofilm Reactor
- ASTM E3163-18 Standard Guide for Selection and Application of Analytical Methods and Procedures Used during Sediment Corrective Action
- ASTM E3164-23 Standard Guide for Contaminated Sediment Site Risk-Based Corrective Action – Baseline, Remedy Implementation and Post-Remedy Monitoring Programs
- ASTM E3166-20e1 Standard Guide for Nondestructive Examination of Metal Additively Manufactured Aerospace Parts After Build
- ASTM E3168-20a Standard Practice for Determining Low-Contrast Visual Acuity of Radiographic Interpreters
- ASTM E317-21 Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing Instruments and Systems without the Use of Electronic Measurement Instruments
- ASTM E3170/E3170M-18(2023) Standard Practice for Phased Array Ultrasonic Testing of Polyethylene Electrofusion Joints
- ASTM E3171-21a Standard Test Method for Determination of Total Silver in Textiles by ICP-OES or ICP-MS Analysis
- ASTM E3178-18 Standard Practice for Evaluating Static and Cidal Chemical Decontaminants against Bacillus Spores using Centrifugal Filtration Tubes
- ASTM E3182-20 Standard Practice for Preparing an Occupant Exposure Screening Report (OESR) for Substances in Installed Building Products
- ASTM E3186-19 Standard Guide for Use and Testing of Dry-Block Temperature Calibrators
- ASTM E3191-18 Standard Specification for Permanent Foaming Fixatives Used to Mitigate Spread of Radioactive Contamination
- ASTM E3192/E3192M-20 Standard Practice for Soft Armor Conditioning by Tumbling
- ASTM E3197-23 Standard Terminology Relating to Examination of Fire Debris