ISO 3015:2019

Name: ISO 3015:2019 — Petroleum and related products from natural or synthetic sources — Determination of cloud point
SKU: ISO 3015:2019
Price: 16200 RUB
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Petroleum and related products from natural or synthetic sources — Determination of cloud point

Название (английский):

ISO 3015:2019

Petroleum and related products from natural or synthetic sources — Determination of cloud point

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 25 апреля 2019 г.
Издание:: ISO IS 3015 edition 3 version 1
ICS:: 75.080

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Описание (английский):

This document specifies a method for the determination of the cloud point of petroleum products which are transparent in layers 40 mm in thickness and have a cloud point below 49 °C, amongst which are diesel fuels with up to 30 % (V/V) of fatty acid methyl ester (FAME)[2], paraffinic diesel fuels with up to 7 % (V/V) FAME[3], 100 % FAME[5] and lubricants. NOTE For the purposes of this document, the term "% (V/V)" is used to represent the volume fraction (φ) of a material.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 3015:2019 specifies a standardized laboratory method for the determination of cloud point in petroleum and related products. The cloud point is defined as the temperature at which a cloud of wax crystals first appears when a liquid is cooled under specified conditions. ISO 3015:2019 applies to transparent samples in 40 mm layers with cloud points below 49 °C, including diesel fuels (up to 30 % V/V FAME), paraffinic diesel (up to 7 % V/V FAME), 100 % FAME and lubricants. The standard updates the previous edition with expanded scope and inclusion of digital contact thermometers.

Key topics and technical requirements

Scope and sample types: Transparent petroleum products, diesel blends with FAME, paraffinic diesel, biodiesel (FAME) and lubricants.

Principle: Cool a defined sample at a controlled rate and inspect periodically; record the temperature at first visible cloud at the bottom of the test jar.

Apparatus:

Specified clear glass test jar (approx. 33.2–34.8 mm outside diameter, 115–125 mm height) with sample height marked at 54 mm ± 3 mm.
Jacket and gasket to isolate the jar in a cooling bath.
Temperature measuring devices: liquid-in-glass thermometers or Digital Contact Thermometer (DCT) meeting Annex A requirements (e.g., display resolution 0.1 °C, accuracy ±0.5 °C, specified sensor dimensions and response time).

Cooling baths and temperature ranges: Series of baths (e.g., 0 °C, −18 °C, −33 °C, −51 °C, −69 °C) with defined sample temperature ranges for transferring jars between baths.

Procedure highlights:

Preheat and dry samples (at least 14 °C above approximate cloud point, ≤49 °C).
Pour to the mark, insert thermometer so bulb/probe rests on jar bottom.
Inspect at each 1 °C increment; total jar removal and inspection should take ≤3 s.
Report cloud point to the nearest 1 °C.

Precision:

Repeatability: difference between repeated tests by same operator exceeds 2 °C in one case out of 20.
Reproducibility: difference between labs exceeds 4 °C in one case out of 20.

Test report: Product identification, reference to ISO 3015:2019, result, deviations, and test date.

Applications and users

ISO 3015:2019 is used by:

Petroleum and biodiesel producers for quality control and specification compliance.

Independent test laboratories and certification bodies performing fuel characterization.

Refiners and fuel distributors evaluating cold-weather operability of diesel blends and lubricants.

Regulatory agencies and standards committees assessing fuel performance limits.

Practical benefits include consistent cloud point measurement, comparability across laboratories, and informed decisions on cold-flow additives, blending limits and storage/transport requirements.

ISO 3015:2019

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

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