1 Scope 1.1 Purpose These tests are used as process control tools; they can be used to inspect printedboards or printed board assemblies and determine if they conform to the moniꢀtoring level of the user’s performance specification. Bulk ionic cleanliness testing may be accomplished by measuring the ionizable surface contaminants extracted by the following three methods: 1. Manual extraction method 2. Dynamic extraction method 3. Static extraction method Note: Please note that this method does not predict reliabilꢀity and should only be used as a process control tool. 1.2 Restrictions Measurements of ionic conductivities do not differentiate between different ionic species. They simply measure conductivities (or resistivities) which can be related to amounts of ionic materials present in solution. There is no identification of the contribution to the total conductivity readꢀings of any individual ionic species which may be extracted into the solution. For measurement of individual ionic species (type [...]

FOREWORD The purpose of this test methods manual is to contain, in one document, pertinent information on test methods that will be useful to manufacturers and users of printed boards, electronic assemblies, hybrid circuits, discrete wiring, and flflat cable. It provides an organized reference source for test methods, which can be utilized by the testing laboratories of manufacturers and users of products of the electronic interconnection industry. In addition, this document provides an organized reference source of test methods that can be utilized by the technical committees of the IPC, in their work to develop new standards and specififications. TELLS HOW TO TEST — NOT REQUIREMENTS FOR ACCEPTANCE This test methods manual is designed to provide specifific information on test methods. It does not attempt to establish acceptability levels for performance. Details of performance requirements can be found in appropriate IPC specifificaꢀtions, which are referenced in the manual. ABOUT THE [...]

Substrate Electrographic Method 1 Scope This test method provides a procedure for testing the porosity of gold electroplated from an alkaline (cyanide), acid, or neutral gold plating solution on a nickel substrate in contact with the gold deposit. 2 Applicable Documents :None 3 Materials and Equipment 3.1 Materials :Acetone, Sodium Nitrate, Reagent GD. (NaNO3), Sodium Carbonate, Anhydrous, Reagent GD. (Na2CO3), Dimethylglyoxime, Denatured Ethyl Alcohol No. 3A, Reagent GD. (C2H5OH), hotographic Paper with Silver Halide removed. (Kodabromide, glossy finish, single wt. phoꢀtographic paper (fixed before use), Ammonium Hydroxide, Reagent GD. (NH4OH) 3.2 Equipment 3.2.1 DC power supply to 0 amp to 1 amp. DC minimum, 0 volts to 10 volts 3.2.2 DC Milliammeter, 0 mA to 100 mA 3.2.3 Electrographic Clamp-Press 4 Equipment/Apparatus :None 5 Procedure 5.1 Solution Make Up 5.1.1 Electrolyte :Concentration: NaNO3 1% (wt.) Na2CO3, Anhydr. 4% (wt.) Distilled water – balance by wt. Preparation of 500 g (Vol. [...]

1 Scope The purpose of this test is to measure the capacitance effects arising from plastic substrates, adhesives, or coatings, which may be critical to the reliable functioning of a circuit. 2 Applicable Documents None 3 Test Specimen Specimen thickness for all tests must be uniform within ±1% of the average thickness. At frequencies below 1 MHz the specimen shall be large enough to provide circular electrodes at least 10 cm in diameter and between 1.5 mm to 6.35 mm thick. At frequencies from 1.0 MHz to 1000 MHz, a micrometer electrode holder should be used with the test specimen. 4 Equipment/Apparatus 4.1 A bridge or resonant circuit capable of measuring the capacitance and dissipation factor with the required accuracy at the specified frequency may be used. The inherent accuracy of the measurement shall be ± 0.5%, ± 0.2% picofarad, unless otherwise specified. The electrode material may be thin foil, [...]

1.0 Scope This method describes a technique for evaluating a material to resist tracking when subjected to a low current arc just above the surface of the material. It can be used on materials of various thickness by stacking materials. This procedure is based on techniques described in ASTM D495. 2.0 Applicable Documents ASTM D495 Standard Test Method for High Voltage, LowCurrent, Dry Arc Resistance of Solid Electrical Insulation Manufacturer’s Instruction Manual. 3.0 Test Specimens 3.1 Number Three specimens shall be used unless otherꢀwise specified. 3.2 Form Each specimen shall be 3.0 in. x 2.0 in. Material under 0.06 in. in thickness shall be built up to provide a specimen at least 0.06 in. but not exceeding 0.125 in. For very thin laminates a 1/16 in. laminate of the same type may be used under the actual specimen subjected to the arc, permitting a reduction of the material required without [...]