PDF
GB/T 7731.4-2021 Active
GB/T 7731.4-2021 Ferrotungsten—Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometric method
Abstract
This document specifies the phosphomolybdate spectrophotometric method for determining the phosphorus content in tungsten iron.
This document is applicable to the determination of phosphorus content in tungsten iron, with a measurement range (mass fraction) of 0.010% to 0.080%.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 7731.4-2021 |
| CCS | Analysis methods for steel and iron alloys |
| ICS | Iron alloy |
| Implement Date | 2022-03-01 |
Price
$ 50
Subtotal
$ 50
Tax
$ 0.00
Order Total (incl. tax)
$ 50