GB/T 4702.7-2016 Active National standards

GB/T 4702.7-2016 Chromium metal─Determination of nitrogen content─Distillation-nessler reagent spectrophotometric method

Publish Date: 2016-08-29 Implement Date: 2017-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 4702.7-2016

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for steel and iron alloys

ICS Name: Iron alloy

Publish Date: 2016-08-29

Implement Date: 2017-07-01

Pages: 6 pages

Scope

This part of GB/T 4702 specifies the determination of nitrogen content by the distillation-separation-Nessler's reagent spectrophotometry method.
This part is applicable to the determination of nitrogen content in metallic chromium. The determination range (mass fraction) is: 0.002%~0.150%.

Development Information

Word Count: 10 Thousand words Pages: 6 pages

Same series standard

GB/T 4702.1-2016 Chromium metal—Determination of chromium content—The ammonium ferrous sulfate titrimetric method GB/T 4702.3-2016 Chromiun metal—The determination of phosphorus content—Bismuth phosphate molybdenum blue spectrophotometric method GB/T 4702.6-2016 Chromium metal—Determination of iron,aluminium,silicon and coppercontent—Inductively coupled plasma atomic emission spectrometry method GB/T 4702.15-2016 Chromium metal—Determination of lead,tin,bismuth,antimony and arsenic content—Inductively coupled plasma mass spectrometric method GB/T 4702.17-2016 Chromium metal—Determination of oxygen, nitrogen and hydrogen content—Inert gas fusion thermal infrared detection method and conductivity method

Referenced Standards

GB/T 4010-1994 Ferroalloys—Sampling and preparation of samples for chemical analysis GB/T 4010-2015 Ferroallys sampling and preparation of samples for chemical analysis GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 7729-2021 Chemical analysis of metallurgical products—General rule for spectrophotometric methods GB/T 12806-1991 Laboratory glassware—One-mark volumetric flasks GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks GB/T 12807-1991 Laboratory glassware—Graduated pipettes GB/T 12807-2021 Laboratory glassware—Graduated pipettes GB/T 12808-1991 Laboratory glassware—One-mark pipettes GB/T 12808-2015 Laboratory glassware—One mark pipettes

Related Standards

GB/T 3654.10-1983 Replaced

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