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Database: 365,228(8 Aug 2026)
total nitrogen scopethis standard reagent-general method inorganic nitrogen compounds visual colorimetric determination general method standby power supply neutron multiplication measurements antenna-feed arresters
GB/T 609-1988 in English

GB/T 609-1988 in English

SUPERSEDED

Chemical reagent-General method for the determination of total nitrogen

  • Issued on:1988-06-20
  • Implemented on:1989-04-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $170.00
$165.00
Standard No: GB/T 609-1988
Document status: SUPERSEDED
Superseded by: GB/T 609-2006 Chemical Reagent - General Method for the Determination of Total Nitrogen
Superseded on: 2007-06-01
Title in English: Chemical reagent-General method for the determination of total nitrogen
Title in Chinese: 化学试剂 总氮量测定通用方法
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 1988-06-20
Implemented on: 1989-04-01
ICS Classification: 71.040.30-Chemical reagents
Chinese Classification: G60-Chemical reagent in general
Professional Classification: GB-National Standard
Related Keywords: total nitrogen scopethis standard
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Scope

This standard specifies a general method for converting inorganic nitrogen compounds into ammonium salts and using Nessler's reagent for visual colorimetric determination. This standard applies to the determination of the total amount of trace inorganic nitrogen compounds (including nitrate, nitrite and ammonium salt) in chemical reagents. The detection range is 0.05-0.8 μg/mL (calculated as N).

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