What is Trimming procedure as per IMSBC code ?

1. The scantlings and securing arrangements of divisions and bin bulkheads;
2. The stability effect of free cargo surfaces.

Non-cohesive bulk cargoes having an angle of repose greater than 30° to 35° inclusive

1. the unevenness of the cargo surface measured as the vertical distance (Δh) between the highest and lowest levels of the cargo surface shall not exceed B/10, where B is the beam of the ship in metres, with a maximum allowable Δh = 1.5 m; or
2. loading is carried out using trimming equipment approved by the competent authority.

Non-cohesive bulk cargoes having an angle of repose greater than 35°

1. The unevenness of the cargo surface measured as the vertical distance (Δh) between the highest and lowest levels of the cargo surface shall not exceed B/10, where B is the beam of the ship in metres, with a maximum allowable Δh = 2 m; or
2. loading is carried out using trimming equipment approved by the competent authority.