GB/T 4985-2021 Active National standards

GB/T 4985-2021 Standard test method for needle penetration of petroleum waxes

GB/T 4985-2021 Standard test method for needle penetration of petroleum waxes

Publish Date: 2021-10-11 Implement Date: 2022-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 4985-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Petroleum wax

ICS Name: Paraffin, asphalt materials, and other petroleum products

Publish Date: 2021-10-11

Implement Date: 2022-05-01

Pages: 9 pages

Scope

This document describes a method for evaluating the hardness of wax by measuring the depth of a standard needle penetrating into a wax sample.
This document is applicable to petroleum waxes with a needle penetration value of no more than 250 1/10 mm, and can also be used to determine the hardness of Fischer-Tropsch wax, synthetic wax, and bio-wax, etc. However, this document does not provide the precision for determining the hardness of synthetic wax and bio-wax.

Development Information

Word Count: 20 Thousand words Pages: 9 pages

Replace the following standards

GB/T 4985-2010 Standard test method for needle penetration of petroleum waxes

Referenced Standards

GB/T 514-2005 Specification for liquid-in-glass thermometers for testing of petroleum products GB/T 2539-2008 Petroleum waxes—Determination of melting point—Cooling curve method GB/T 2539-2023 Determination of melting point of petroleum wax—Cooling curve method NB/SH/T 0843-2023 Petrochemical industry testing system evaluation using statistical techniques NB/SH/T 0843-2010 Statistical Techniques for Analysis and Evaluation of Petroleum Industry Test Systems SH/T 0132-1992 Petroleum Wax Freezing Point Determination Method

Related Standards

GB/T 3554-1983 Replaced

GB/T 3554-1983 Petroleum waxes—Determination of oil content

Publish Date: 1983-03-31

GB/T 7363-1987 Replaced

GB/T 7363-1987 Paraffin wax—Determination of polynuclear aromatics

Publish Date: 1987-03-05

GB/T 7364-1987 Replaced

GB/T 7364-1987 Paraffin wax—Determination of carbonizable substances

Publish Date: 1987-03-05

GB/T 8024-1987 Abolished

GB/T 8024-1987 Petroleum waxes and petrolatums—Determination of trace nitrogen—Microcoulometric method

Publish Date: 1987-07-03

GB/T 8025-1987 Active

GB/T 8025-1987 Petroleum waxes and petrolatums—Determination of trace sulfur—Microcoulometric method

Publish Date: 1987-07-03

GB/T 8026-1987 Replaced

GB/T 8026-1987 Petroleum waxes and petrolatums—Determination of drop melting point

Publish Date: 1987-07-03