GB/T 10267.5-2025

Active

Methods for analysis of calcium metal—Part 5：Determination of nitrogen by distillation-Nessler spectrophotometry

金属钙分析方法第5部分：蒸馏-奈斯勒试剂光度法测定氮

Standard Type

GBT

ICS

77.120

CCS

H 12

Status

现行

Issue Date

2025-10-05

Implementation

2026-05-01

Responsible Dept

国家标准委

Drafting Unit

N/A

🔗 Related Standards / 同类标准

GB/Z 39124-2020 Method for chemical analysis of lead concentrates—Determination of antimony content—Ce(SO4)2 titration method GB/T 340-1976 Non-ferrous metals and its alloys--Code of designation GB/T 466-1982 Classification of copper GB/T 4702.8-1985 Methods for chemical analysis of chromium metal--The distillation-molybdenum blue spectrophotometricmethod for the determination of arsenic content GB/T 4702.11-1985 Methods for chemical analysis of chromium metal--The alizarin violet spectrophotometric method for the determination of tin content GB/T 4702.9-1985 Methods for chemical analysis of chromium metal--The crystal violet spectrophotometric method for the determination of antimony content GB/T 4702.10-1985 Methods for chemical analysis of chromium metal--The cupral spectrophotometric method for the determination of copper content GB/T 5235-1985 Wrought nickels and nickel alloys--Chemical composition and forms of wrought products