Reference number
ISO 2998:1974
© ISO 2024
ISO 2998:1974
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of orthophosphate content — Photometric method using the reduced molybdophosphate
Edition 1
1974-12
Withdrawn
Withdrawn (Edition 1, 1974)

Abstract

Specifies a photometric method, using the reduced molybdophosphate, for the determination of orthophosphate content of sodium tripolyphosphate and sodium pyrophosphate for industrial use. Applicable to products with orthophosphate contents between 0,05 and 1,0 % (m/m).

General information

  • Status
     : Withdrawn
    Publication date
     : 1974-12
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 47
    ICS :
    71.060.50 
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Life cycle

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