ايزو 483:1988 is applicable to a small number of samples before the test of the shape adjustment or can be carried out in this small seal of the internal energy test, such as electrical performance test. The details are described below.
1 نطاق التطبيق
This standard specifies guidelines for the construction and use of all types of sealing junctions with a volume of less than 200dm3. A method for obtaining a constant phase humidity by placing a saturated aqueous solution, glycerol/aqueous solution or sulfuric acid aqueous solution into a hand-sealed box at a given temperature.

This method is suitable for adjusting the shape of a small number of samples before testing or testing that can be carried out in this small seal, such as electrical performance testing.

ايزو 483-1988 “طرق المحافظة على رطوبة نسبية ثابتة في الغرف الصغيرة المغلقة باستخدام المحاليل المائية

2 Reagents and instruments
2.1 All kinds of POTS prepared with seeds are analytically pure, oil and sulfuric acid are chemically pure, and steamed water or water of the same purity is used for preparation.

2.2 Air circulation system is recommended for sealed containers with volume less than 15dm’.

2.3 Containers with a volume of (15-200)dma shall be equipped with an internal air circulation system and a dry and wet bulb thermometer.

3 Operation Steps
3. The capacity of the sealed container. In the sealed container without air circulation, the total area of the sample should not exceed the surface area of the solution. In a container with air circulation, the specimen. The area may be 3 letters of the sum of the sample area in the unenclose container.

3.2 الطريقة أ – Saturated salt harbor solution, يوضح الجدول الرطوبة النسبية الناتجة عن محلول الملح المشبع عند درجة حرارة معينة 1.

ايزو 483-1988 “طرق المحافظة على رطوبة نسبية ثابتة في الغرف الصغيرة المغلقة باستخدام المحاليل المائية

4. السيرة الذاتية القياسية وحالة الحصول على العطاءات
تم إنشاء هذا المعيار بواسطة ISO/TC61/SC6in 1988, وهي الآن الطبعة الأولى.

لا يوجد معيار مماثل في بلدنا.