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ASTM B885-97

Заменен
Standard Test Method for Presence of Foreign Matter on Printed Wiring Board Contacts — 3 стр.
Область применения

1.1 This test method defines a resistance probing test for detecting the presence of foreign matter on Printed Wiring Board (PWB) contacts or fingers that adversely affects electrical performance. This test method is defined specifically for such fingers coated with gold. Application of this test method to other types of electrical contacts or to fingers coated with other materials may be possible and desirable but may require some changes in fixturing, procedures, or failure criteria.

1.2 Practice B 667 describes another contact resistance probe method that has more general application to electrical contacts of various materials and shapes. Practice B 667 should be used for more fundamental studies. This test method provides a fast inspection method for printed wiring board fingers.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Сборник ASTM
02.04 Nonferrous Metals – Nickel, Titanium, Lead, Tin, Zinc, Zirconium, Precious, Reactive, Refractory Metals and Alloys: Materials for Thermostats, Electrical Heating and Resistance Contact, and Connectors / Цветные металлы - Никель, Кобальт, Свинец, Олово, Цинк, Кадмий, Драгоценные металлы, химически активные металлы, Тугоплавкие металлы и сплавы, Материалы для Термостатов, Электронагревательных приборов, Контактов, Соединительные устройств
Тематика
Other Nonferrous Metals