1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 05 08 Activated R. Cuhna Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 2 PHOSPHATE SOLUTION, ZINC, MAKE UP WSS-M5B421-A 1. SCOPE The material defined by this specification is a solution containing
2、 essentially zinc phosphate. 2. APPLICATION This specification was released originally for material used as make up material in spray only phosphate equipments. In general this material is used in combination with WSS-M5B419-A Phosphate Solution, Zinc, Start-Up, with WSS-M3B72-A4 Phosphate Solution,
3、 Zinc, Make up fluoride, with WSS-M5B420-A Phosphate Solution, Zinc, Additive, with SK-M5B9580-A Phosphate Solution, Zinc, Passivating Solution and after the application of ESK-M5B393-A Phosphate Solution, Zinc, Alkaline Cleaner. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Mat
4、erial suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION Zinc as Zn 5.6 +/- 1.2% Manganese as Mn 1.0 +/- 0.4% Nickel as Ni 0.9 +/- 0.4% Phosphate at P2O516.5 +/- 2.5% Nitrate as NO33.0 +/- 0.8% Fluoride
5、as F 0.7 +/- 0.4% 3.3 pH VALUE 1% SOLUTION BY WEIGHT AT 20oC 2.8 +/- 1.0 3.4 DENSITY, g/cm3 1.35 +/- 0.05 (ASTM D 1475) 3.5 ACIDITY Free (Sodium hydroxide 0.1N) Indicator: Bromo Phenol Blue 3.7 +/- 0.3 mL Total (Sodium hydroxide 0.1N) Indicator: Phenolphthalein 5.1 +/-0.8 mL ENGINEERING MATERIAL SPE
6、CIFICATIONWSS-M5B421-A Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 2 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 The phosphate system released by thi
7、s specification shall be supported by the following materials: 4.1.1. Phosphate Solution, Zinc, Alkaline Cleaner ESK-M5B393-A 4.1.2. Phosphate Solution, Zinc, Start Up WSS-M5B419-A 4.1.3. Phosphate Solution, Zinc, Additive WSS-M5B420-A 4.1.4. Phosphate Solution, Zinc, Make up, fluoride WSS-M3B72-A4 4.1.5. Phosphate Solution, Zinc, Passivating Solution SK-M5B9580-A
