外国人労働者に対する安全衛生教育教材作成事業（建設業）“Plastering and interior finishing work”
The important points for Safety and health

Measures against asbestos in buildings(1) What is asbestos?
Asbestos is a type of naturally produced mineral.
Asbestos has been used for various purposes because of its
properties such as resistance to heat and friction, and a large
quantity has been used especially for building materials.
Steel frame fireproof
coating

Used for steel frame
fire resistance

Attic

Ceiling board
Prevents dew condensation on theattic, used for thermal insulation
Texture of felt
Used for sound absorption
Rock wool containing asbestos

1外国人労働者に対する安全衛生教育教材作成事業（建設業）[Plastering and interior
finishing work]

Measures against asbestos in buildings(2) Health disorders due to asbestos
Regarding the harm to a human body, inhalation of asbestos dust
may cause following health problems.
●Asbestosis (a type of pneumoconiosis)
The asbestosis is the pulmonary fibrosis and have symptoms
such as coughs, it causes the decreased respiratory function if
exacerbated.
●Lung cancer
Malignant tumors that affect or grow in the lungs.
●Mesothelioma in the pleura or the peritoneum (a type of cancer)
Malignant tumors grown in the pleura that covers the lungs.
Major diseases caused by asbestos

Asbestos

Lung cancer

Peritoneal mesothelioma

Asbestosis

Mesothelioma in pleura2外国人労働者に対する安全衛生教育教材作成事業（建設業）

Measures against asbestos in buildings[Plastering and interior
finishing work](3) Asbestos around us
There are many buildings where asbestos is used, especially inbuildings built before 1980, and buildings with cooking rooms,
bathrooms, drying rooms, boiler rooms, etc.
<Examples of building component>
ceiling/wall: interior materials

slate board, calcium silicate board Class 1,pulp cement flat sheet

ceiling/floor: Sound absorbing asbestos contained rock wool sound absorbing
heat insulating materials
ceiling board
floor materials:

polyvinyl chloride floor tile, floor materials

exterior wall/eave: cladding

extrusion-molded cement panel, ceramic siding,slag gypsum board, slate board, wavy slate plate,calcium silicate board Class 1, slate board

roof materials:

wavy slate plate,decorative slate sheet for housing roof

Images of asbestos usage in buildings
Steel frame fireproof
coating

For steel frame
fire resistance

Exterior wall material(corrugated sheet)

Strengtheningof outer wall

Plumbing elbow

For insulation ofpiping

Water floor material

For floor
waterproofing3外国人労働者に対する安全衛生教育教材作成事業（建設業）

Measures against asbestos in buildings[Plastering and interiorfinishing work](4) Work methods (prevention of dust emission)<Dismantling by hands>
Asbestos-containing molded plates are removed by a method that
does not cause destruction or rupture as much as possible. In
principle, they are removed by hands maintaining the originalform. If this is not possible, it is necessary to wet enough and tocollect dust by using a high-performance vacuum cleaner.

<Wetting>
Generally, the work is carried out while wetting with watering or
spraying chemicals.

4外国人労働者に対する安全衛生教育教材作成事業（建設業）

Measures against asbestos in buildings[Plastering and interior
finishing work](5) Taking of the special education and the instruction by an operation chief of asbestos<Taking of the special education>
People engaged in construction works such as demolition andrenovation of buildings and structures, or asbestos containment andenclosure works must have the special education on the harm ofasbestos and use of protective equipment.

Measures forasbestos works<The instruction by an operation chief of asbestos>
People engaged in construction works such as dismantling andrenovation of buildings and structures, as well as in asbestos
containment and enclosure works, must work in accordance with
the instruction of an operation chief of asbestos, so that they are
not contaminated by asbestos dust or inhaled.
5外国人労働者に対する安全衛生教育教材作成事業（建設業）

Measures against asbestos in buildings[Plastering and interior
finishing work](6) Use of protective equipment
When performing works such as dismantling a building (including
a work to remove asbestos), or infill or enclosure works, use a
respiratory protective equipment (dust respirators, air feedingmasks, etc.), working clothes or protective clothing.
When removing asbestos sprayed in an isolated work area, arespirator should be a respiration protector with an electric fan or arespirator with the performance equal to or more.

6外国人労働者に対する安全衛生教育教材作成事業（建設業）[Plastering and interior
finishing work]

Measures against asbestos in buildings(7) Prohibition of unauthorized persons
Workplaces where handling asbestos are prohibited from entering
by persons other than those involved, and signs are displayed atvisible places.

ATTENTIONKEEP OUT

Treatingasbestos
7外国人労働者に対する安全衛生教育教材作成事業（建設業）

Measures against asbestos in buildings[Plastering and interiorfinishing work](8) Prohibition of smoking, etc. and medical examinations<Prohibition of smoking, etc.>
Smoking, eating, and drinking are prohibited in work places whereasbestos is handled.

<Implementation of health checks>
Persons who are constantly engaged in works where asbestos dust
is produced must receive regularly a special health check ofasbestos just after or within every six months when employed or
relocated.

82020.3