SIST EN ISO 3892:1999

Conversion coatings on metallic materials - Determination of coating mass per unit area - Gravimetric methods (ISO 3892:1980)

Konversionsschichten auf metallischen Werkstoffen - Bestimmung der Masse der Schichten pro Flächeneinheit - Gravimetrische Verfahren (ISO 3892:1980)

Die vorliegende Internationale Norm beschreibt gravimetrische Verfahren zur Bestimmung der Masse der Schicht pro Flächeneinheit von Konversionsschichten auf metallischen Werkstoffen.

Couches de conversion sur matériaux métalliques - Détermination de la masse par unité de surface - Méthodes gravimétriques (ISO 3892:1980)

S fosfatenjem ali kromatenjem nanesene prevleke na kovinskih materialih - Ugotavljanje mase prevleke na enoto površine - Gravimetrijske metode (ISO 3892:1980)

General Information

• Status: Withdrawn
• Publication Date: 30-Sep-1999
• Withdrawal Date: 28-Feb-2002
• ICS: 25.220.20 - Surface treatment
• Technical Committee: IPKZ - Protection of metals against corrosion
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 01-Mar-2002
• Due Date: 01-Mar-2002
• Completion Date: 01-Mar-2002
• Ref Project: EN ISO 3892:1994 - Conversion coatings on metallic materials - Determination of coating mass per unit area - Gravimetric methods (ISO 3892:1980)

Relations

• Replaced By: SIST EN ISO 3892:2002 - Conversion coatings on metallic materials - Determination of coating mass per unit area - Gravimetric methods (ISO 3892:2000)
• Effective Date: 01-Mar-2002

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.S fosfatenjem ali kromatenjem nanesene
prevleke na kovinskih materialih - Ugotavljanje mase prevleke na enoto površine - Gravimetrijske metode (ISO 3892:1980)Konversionsschichten auf metallischen Werkstoffen - Bestimmung der Masse der Schichten pro Flächeneinheit - Gravimetrische Verfahren (ISO 3892:1980)Couches de conversion sur matériaux métalliques - Détermination de la masse par unité de surface - Méthodes gravimétriques (ISO 3892:1980)Conversion coatings on metallic materials - Determination of coating mass per unit area - Gravimetric methods (ISO 3892:1980)25.220.20Površinska obdelavaSurface treatmentICS:Ta slovenski standard je istoveten z:EN ISO 3892:1994SIST EN ISO 3892:1999en01-oktober-1999SIST EN ISO 3892:1999SLOVENSKI
STANDARD



SIST EN ISO 3892:1999



SIST EN ISO 3892:1999



SIST EN ISO 3892:1999



International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME)l(~qYHAPO~HAR OPf-AHM3ALWlR no CTAHAAPTM3A~MM~ORGANISATlON INTERNATIONALE DE NORMALISATION Conversion coatings on metallic materials - Determination of coating mass per unit area - Gravimetric methods Couches de conversion sur matbriaux mbtailiques - Determination de Ia masse par unite de surface - Mbhodes gravimetriques First edition - 1980-09-01 w - UDC 669.058 : 531.751.3 Ref. No. ISO 38924980 (E) dl 83 m 0 cn Descriptors : non-metallic coatings, conversion coatings, chromate coatings, Phosphate coatings, Oxide coatings, anodic coatings, physical tests, density measurement, specific surface. Price based on 3 pages SIST EN ISO 3892:1999



Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards institutes (ISO member bedies). The work of developing Inter- national Standards is carried out through ISO technical cornmittees. Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO 3892 was developed by Technical Committee ISO/TC 107, Metalic and other non-organic coatings, and was circulated to the member bodies in August 1977. lt has been approved by the member bodies of the following countries : Australia India Austria Israel Brazil Italy Czechoslovakia Japan France Mexico Germany, F. R. Netherlands Hungary Poland Romania Spain Sweden Turkey United Kingdom USA USSR The member bodies of on technical grounds : the following countries expressed disapproval of the document South Africa, Rep. of Switzerland International Organkation for Standardization, 1980 Printed in Switzerland SIST EN ISO 3892:1999



INTERNATIONALSTANDARD ISO 3892-1980 (EI Conversion coatings on metallic materials - Determination of coating mass per unit area - Gravimetric methods 1 Scope and field of application This International Standard specifies gravimetric methods for determining the coating mass per unit area of conversion coatings on metallic materials. The methods are applicable to - Phosphate coatings on iron and steel; - Phosphate coatings on zinc and Cadmium; - Phosphate coatings on aluminium and its alloys; - chromate coatings on zinc and Cadmium; - chromate coatings on aluminium and its alloys. The methods are applicable only to conversion coatings which are free from any supplementary coating such as Oil, water- or solvent-based polymers, or wax. 2 Apparatus Ordinary laboratory apparatus and 2.1 Vessel, of glass or other appropriate material, in which the conversion coatings tan be dissolved. 2.2 Analytical balance, capable of weighing to a precision of 0,l mg, for weighing the test pieces under examination before and after dissolution of the conversion coatings. 2.3 Electrical equipment for electrolytic dissolution, in the case of chromate coatings on zinc and Cadmium. In Order to achieve an adequate accuracy in the determination, the total surface area shall be in conformity with the following table : Table - Total surface areas of test pieces Expected mass of coating Minimum total surface area per unit area of test piece I g/m2 cm2 less than 1 400 1 to 10 200 over 10 to 25 100 over 25 to 50 50 over 50 25 In Order to achieve an Overall precision (see 5.2) of 5 %, the t jurface areas should be measured to an accuracy of 1 %. . 4 Reagents and procedures For the preparation of solutions, use only reagents of recog- nized analytical grade and only distilled water or water of equivalent purity. If a sufficient number of test pieces is available, carry out each determination in duplicate or, better, in triplicate. 4.1 Phosphate coatings on iron and steel 4.1 .l Manganese Phosphate coatings 4.1.1.1 Reagent An aqueous Solution containing 50 g of chromium(VI) Oxide (Cr03) per litre. 3 Test pieces 4.1.1.2 Procedure The test pieces shall have a maximum mass of 200 g and a total surface area large enough to give a loss of mass sufficient to test, with adequate sensitivity, conformity with the re- quirements of the relevant material or product specification. Dry the test piece (area A) and weigh it on the analytical balance (mass ml, in milligrams), to the nearest 0,l mg. Then immerse the test piece for 15 min in the reagent (4.1 .l .l), main- 1 SIST EN ISO 3892:1999



ISO 3892-1980 (E) tained at 75 k 5 OC. Rinse the test piece immediately in clean running water and then in distilled water, dry rapidly and reweigh. Repeat the procedure until a sensibly constant mass is obtained (mass m2, in milligrams). cupboard. Rinse the test piece immediately in clean running water and then in distilled water, dry rapidly and reweigh (mass m2, in milligrams). Use fresh reagent for every test piece. Use fresh reagent for every test piece. 4.3 Crystalline and its alloys Phosphate coatings on aluminium 4.1.2 Zinc Phosphate coatings 4.1.2.1 Reagent 4.3.1 Reagent An aqueous Solution containing 100 g of sodium hydroxide, 90 g of EDTA tetrasodium salt (ethylenedinitrilo tetraacetic acid, tetrasodium
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