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Question
The maximum surface drying time (minute) for class A type plastic emulsion paint as per the Indian standards is: 
Hkkjrh; ekudksa ds vuqlkj oxZ A izdkj ds IykfLVd beY'ku isaV ds fy, vf/dre lrg lq[kkus dk le; (feuV) gS%
A.
45 
B.
75 
C.
60 
D.
240
Answer ( Option A)

45 

Solution

As per IS 15489: 2004: 
1. Maximum Surface drying time for class A and Class B type plastic emulsion paint is 45 minutes. 
2. Maximum Surface drying time for class C and Class D type plastic emulsion paint is 90 minutes.
3. Maximum Hard drying time for class A and class B type plastic emulsion paint is 240 minutes. 
4. Maximum Hard drying time for class C and class D type plastic emulsion paint is 480 minutes.

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