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GB/T 4985-2021 Active
GB/T 4985-2021 Standard test method for needle penetration of petroleum waxes
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 4985-2021 |
| CCS | Petroleum wax |
| ICS | Paraffin, asphalt materials, and other petroleum products |
| Implement Date | 2022-05-01 |
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