Projekta Nr.ISO 424:1994
Nosaukums<p>Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium carbonate and sodium carbonate monohydrate and specifies the test methods to be used to determine the purity.</p>
Reģistrācijas numurs (WIID)4434
Darbības sfēra<p>Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade anhydrous sodium carbonate and sodium carbonate monohydrate and specifies the test methods to be used to determine the purity.</p>
StatussStandarts spēkā
ICS grupa37.040.30