These question were faxed to me by a Japanese colleague 
responsible for JIS SIR standards.
I am sending him a copy of the IPC SIR handbook, and answers
to some of the questions.  If anyone has any answers or insight
to add, I'll forward it to him.  (I know, question 8 doesn't
make sense, and some of the other questions are cryptic.)

  11 Questions regarding SIR testing from 

     A. Kiyosue
     Alpha Metals Japan Ltd.
     5-50 Shinmachi Hiratsuka
     Kanagawa Japan

1/ Is there any acceleration coefficient between set 
   temperature and humidity condition?
   further, what is the relationship of service environment
   conditions and life?
   Would you indicate the formula for life?

2/ What is the relationship between the temperature/humidity 
   condition of the environment test, and the time before 
   short circuit (migration) occurs?

3/ Would you indicate the admissible range of set temperatures 
   and humidities. Also indicate how life is effected by this 
   range?

4/ What is the basis for determining the value of bias voltage
   to be applied?

5/ To what extent the temperature by unsaturated PCT (Pressure
   Cooker Test) may be applied?

6/ What is the basis for the standard test conditions (85C 85%RH,
   40C 90%RH, etc.)?

7/ It seems that the environment test conditions are similar to 
   those of a single test; what do you think about the complex 
   acceleration test?

8/ Has the environment test established by taking into 
   consideration test?

9/  Has the environment test conditions such 40C/95%RH,
    85C/85%RH,60C/90%RH? Is it possible to classify them 
    based on test samples?

10/ What difference of the effects on life between the case 
    that the bias voltage is applied at intervals and the 
    case that voltage is applied continuously?

11/ What is the relationship between the bias voltage applied 
    and the before short-circuit (migration) occurs?