ISO 3177:1975
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Potassium hydroxide for industrial use — Determination of chlorides content — Photometric method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
12-04-2019
English, French
01-03-1975
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Applicable to products having contents, expressed as chlorine, between 2 mg/kg and 50 mg/kg. For contents exceeding 50mg/kg the method specified in ISO 992 shall be used. The principle consists in quantitative displacement of the thiocyanate (SCN- ) ions of the mercury(II) thiocyanate by the cloride (Cl- ) ions contained in the test portion. Reaction of the thiocyanate ions with iron(III) nitrate to form iron(III) thiocyanate (red). Photometric measurement of the colour at a wavelength of about 450 nm.
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| BS 5634:1978 | Similar to |
| NBN T 03 197 : 1980 | Identical |
| NFT 20 375 : 77 FD | Identical |
| I.S. EN 60993:2002 | ELECTROLYTE FOR VENTED NICKEL-CADMIUM CELLS |
| EN 60993:2002 | Electrolyte for vented nickel-cadmium cells |
| CEI EN 60993 : 2004 | ELECTROLYTE FOR VENTED NICKEL-CADMIUM CELLS |
| IEC 60993:1989 | Electrolyte for vented nickel-cadmium cells |
| BS EN 60993:2002 | Electrolyte for vented nickel-cadmium cells |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.