8 Ladders

Question 1

When are ladders tested

Answer 1

When it falls
Exposed to heat
Overloaded
When mot sure if the ladder is good

Question 2

Destructive

Answer 2

Load testing

Question 3

Nondestructive

Answer 3

Ultrasound inspection
RadiographIc testing
MagnetIc particles inspection
Conductivity reading
Hardness testing
Acoustic emissions inspection
Liquid penetrating testing

Question 4

Dose the latter need to be fully extended and level

Answer 4

Yes

Question 5

How far are the sawhorses of each side of the latter

Answer 5

6 inches from the end

Question 6

How much is preload

Answer 6

350lbs

Question 7

How much is final load

Answer 7

500lbs

Question 8

How to Measure are preload

Answer 8

1 place 350 Lbs on centre ( 32 inch in length and width of latter ) ( no more than 16 inch on each side )
2 wait one minute, then remove 350 lbs
3 the measure of centre of ladder to ground

Question 9

How to measure final load

Answer 9

1 apply full 500lbs for 5 minutes
2 remove wait 5 minutes then measure centre of ladder to ground

Question 10

What are the differences between the measurements

Answer 10

1/2 inch up to 25 feet
1 inch 25- 34 ft
1 1/2 inch 35 ft and up