escapes rapidly when exposed to air. Never leave sample containers uncapped, and minimize fuel agitation during the initial pouring phase.
The procedure utilizes a rapid, field-portable technique involving length-of-stain detector tubes.
: The bottle is agitated (shaken) to allow
: While this test doesn't perfectly simulate the exact conditions inside a massive storage tank, it provides a consistent level of measurement that is independent of the operator or location. Regulatory Compliance : Many terminals and transport vessels require an ASTM D5705 "Can Test" before they will accept a product for discharge. Vapor vs. Liquid Phase Testing It is important to distinguish between vapor phase (ASTM D5705) and liquid phase testing (such as ASTM D7621 ASTM D6021 Vapor phase results (D5705) are primarily used for health and safety assessments of the immediate atmosphere. Liquid phase results are used for product quality control astm d5705 pdf
[Collect Sample] ➔ Fill container to exactly 50% volume ➔ Tighten seal immediately ↓ [Thermal Conditioning] ➔ Heat sample in bath at 60°C for the mandated duration ↓ [Agitation] ➔ Agitate container uniformly to establish vapor-liquid equilibrium ↓ [Measurement] ➔ Pierce or vent seal ➔ Draw vapor through detector tube ➔ Record stain length 1. Sample Collection The sample container must be filled to exactly
in an oven or water bath and agitated on an orbital shaker at for 3 minutes. Measurement
Always perform the agitation, heating, and gas measurement steps inside a certified . Wear personal H2Scap H sub 2 cap S gas monitoring badges. escapes rapidly when exposed to air
The test is typically conducted at a controlled temperature of 60°C (140°F) , which mimics typical fuel storage and handling temperatures.
concentration is highly dependent on temperature; the standard dictates testing at ) to simulate common storage conditions. 3. Testing Methodology
If you are looking to purchase a specific revision or have questions about the apparatus required, let me know. I can also help you find technical alternatives like the if you need to measure the liquid phase instead. Share public link : The bottle is agitated (shaken) to allow
A failure in odor testing can lead to:
Platforms such as IHS Markit (S&P Global), ANSI, or Techstreet offer legitimate copies of the document.
The detection relies on a simple yet effective precipitation reaction. When H2Scap H sub 2 cap S passes through lead acetate ( ) impregnated in the tube, it forms lead sulfide ( PbScap P b cap S ), which is black or brown:
is lethal at high concentrations and can cause "olfactory fatigue," where a person loses the ability to smell the gas before reaching dangerous levels. : High H2Scap H sub 2 cap S