Apply chalk to watertight flat sealing continuously.
Chalk test watertight doors.
Shipboard machinery equipment and systems requirements for.
Specific test requirements are given in 4 4 and table 1.
The chalk must have continuously around the watertight sealing it has water tightness.
Very important to ensure the door perfo.
Chalk testing chalk powder is applied to the coaming compression bars and panel cross seams the hatches are then closed and re opened.
A test to verify the tightness of a joint by a jet of water with.
2 a every watertight door of the sliding type shall be capable of being operated by efficient hand operated gear both at the door itself and from an accessible position above the bulkhead deck.
The rubber joints are carefully examined.
Code of federal regulations cfr standards.
Title 46 title 46 part 163 001 doors watertight sliding and door controls for merchant vessels through the 1991 edition abs standard.
Chalk testing is one of the key elements in quality testing at the manufacturing plant.
Mil dtl 901 shock test h i.
Rules for building and classing steel vessels.
If there are irregularities in the chalk markings then it is assumed that these areas are not weather tight.
How to perform a chalk test on a wheel operated watertight door and how to adjust door dogs should it fail the test.
Chalk testing is used for visual inspection of the compression integrity of doors and hatches on vessels that hold the potential for flooding.
Very important to ensure the door ope.
Chalk is applied evenly around the knife edge coaming compression bars or panel cross seams of doorways.
A chalk test is a way of verifying that the gasket in a watertight door is evenly contacting the frame which ensures a watertight seal.
Close the door tightly then open check the watertight door sealing.
How to perform a chalk test on an individually dogged watertight door and how to adjust a dog should it fail the test.
B the operating gear for operating from above the bulkhead deck any sliding watertight door fitted in the bulkhead of a machinery space shall be.
The international association of classification societies states that a chalk test must be followed by a hose test.
Chalk and hose tests for seals are time consuming and sometimes completely impractical.
Testing procedures of watertight compartments.
