ASAHI FIBER GLASS CO., LTD

SDS-GW-02

Safety Data Sheet
Glass Wool
Creation Date: July 11, 2000
Revised Date: February 21, 2023
1. Product and Company Identification
Product Name:
Company Name:
Address:

Tel. No.:
Emergency Tel. No.:
Recommended Use:

Limitations on Use:

Glass Wool
ASAHI FIBER GLASS CO.,LTD

Kanda Mitsubishi Building, 3-6-3, Kanda-Kajicho, Chiyoda-ku,
Tokyo, 101-0045 Japan
Responsible division: Quality/ Environment Safety Unit
(81) 03‐5296‐2320(81) 03‐5296‐2320(1) Thermal insulation materials: For thermal insulation of boiler, tank,duct for air conditioning, various pipes and so on. For core material ofpanel. Products are installed in the wall and attic for thermal
insulation, sound absorption and soundproof of buildings.
(2) Thermal insulation materials for dwellings(3) Sound absorbing materials(4) Isolating materials for floating floors: Prevention of floor -impact
sound of the building and vibration insulation of machines.
(5) Decorative sound absorption boards: Interior decoration of the building.
(6) For thermal insulation of industrial equipment
Cement reinforcing material

2. Hazardous Identification
GHS Classification
Physical Hazards:

Explosives
Flammable gases
Flammable aerosols
Oxidizing gases
Gases under pressure
Flammable liquids
Flammable solids
Self-reactive substances and mixture
Pyrophoric liquids
Pyrophoric solids
Self-heating substances and mixture
Substances which, in contact
with water ,emit flammable gases
Oxidizing liquids
Oxidizing solids

Human Health Hazards:

Organic peroxides
Corrosive to metals
Acute toxicity (oral route)
Acute toxicity (skin route)
Acute toxicity (inhalation, gas)
Acute toxicity (inhalation, vapor)
Acute toxicity (inhalation, dust)

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Not applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot classified[Non-combustible(ICSC 2000)]
Not applicableNot applicableNot classified[Non-flammable (ICSC 2000)]
Not classified[Non-combustible(ICSC 2000)]
Not applicable
Classification not possible
Not classified(No reaction observed)
Not applicable
Classification not possible
Classification not possible
Classification not possible
Not applicable
Classification not possible
Classification not possible

ASAHI FIBER GLASS CO., LTD

SDS-GW-02
Acute toxicity (inhalation, mist)
Skin inflammation/irritation(Ex: temporary irritation)
Serious eye damage/eye irritation
Respiratory sensitization
Skin sensitization
Germ cell mutagenicity
Carcinogenicity

Environmental Hazards:
Label Element
Pictogram or Symbol:
Signal Word:
Hazard Statement:
Precautionary Statement:

Reproductive toxicity
Specific target organ/toxicity
to entire body(single exposure)Specific target organ/toxicity
to entire body (repeated exposure)
Aspiration hazard
Aquatic environmental acute hazards
Aquatic environmental chronic hazards

Not applicableNot classified
Not classified
Classification not possible
Not classified (JHSA 2011)
Classification not possible
Not classified(IARC 2002, Group 3)
Classification not possible
Not classified
Not classified
Classification not possible
Classification not possible
Classification not possible

None
None
None
None

3. Composition / Information on Ingredients
Chemical Product:
Common Chemical Name orGeneric Name:
Synonyms:
Chemical Properties (RationalFormula or Structural Formula):
CAS Number:
Impurities/stabilizing additives
contributing to the classification:

Glass wool fibers
MMMF (Man-made mineral fibers)
MMVF (Man-made vitreous fibers)
SVFs (Synthetic vitreous fibers)
Fibrous glass: 90% or moreThermosetting resin (binder) : 10% or lessFibrous glass (wool) No: 65997-17-3
No data available

4. First-aid Measures
Inhalation:
Skin Contact:
Eye Contact:
Ingestion:
Expected Acute Symptoms andDelayed Symptoms:
Most critical signs andsymptoms:
Protection to those taking thefirst-aid measures:
Special cautions to doctors:

If feeling sick, take medical treatment and seek the advice of a doctor.
If the product adheres to the skin, wash the affected area with soapy water,then wash off with clean water or slightly warm water. If the skin area feelssore or there is some abnormality, seek medical attention immediately.
If dust comes in contact with the eyes, do not rub eyes. Rinse with cleanwater until you no longer feel that you have something in your eye. If
the feeling persists, seek the advice of an eye doctor.
Rinse mouth out with water. If feeling sick, take medical treatment andseek the advice of a doctor.
Skin/eye: reddening, irritation, and/or pain
If feeling sick, take medical treatment and seek the advice of a doctor.
Reddening, irritation, and/or pain of eyes or skin, discomfort in
respiratory passage
No data available
No data available

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ASAHI FIBER GLASS CO., LTD

SDS-GW-02

5. Fire-fighting Measures
Extinguishing Media:
Extinguishing Media that are
Not Suitable:
Specific Hazard:
Extinguishing techniquepeculiar to the material:
Protection to those involved infire fighting:

Use appropriate extinguishing media depending on the kind ofneighboring fires.
None
Release of dust.
Remove the material from the fire area if it is not dangerous to do so.
Heat-resistant protective equipment should be used as stated in "8.
Exposure Control/Personal Protection".

6. Accidental Release Measures
Personal Precautions,Protective Equipment andEmergency Measures:
Environmental Precautions:
Recovery and Neutralization:
Method and Materials for
Containing and Cleaning:
Preventive measures against
secondary accident:

Wear appropriate protective equipment (refer to “8. Exposure
Control/Personal Protection ") to avoid skin/eye contact with the productand do not inhale dust.
Dust shall not be scatter into the surrounding environment.
If the product is spilled on the floor, clean it up using an industrial
vacuum cleaner without scattering dust.
Enclose the product in an empty container or bag and seal the containeror bag. Refer to "13. Disposal consideration" for disposal.
Same as above

7. Handling and Storage
Handling
Technical Measures:
Local and General Ventilation:
Safe Handling Advice:
Avoidance of Contact:
Storage:Technical Measures:
Incompatible Products:
Storage Condition:
Packaging Materials:

Wear appropriate protective equipment (refer to “8. Exposure
Control/Personal Protection ") to avoid skin/eye contact with the productand do not inhale dust.
Ventilate for exhaust to keep atmospheric concentrations lower thanexposure limits.
Avoid contact with the eyes.
Do not inhale or swallow.
After handling the material, wash hands.
In addition to taking technical measures, preferentially use packed
products, products with covering material, high-performance products, etc.
No special technical measures are required.
No data available
Place the product in a bag to avoid dust release. For quality reason, theproduct must not come into contact with water.
There is no restriction, but the product should be put in a packaging andcontainer which are hard to be damaged.

8. Exposure Control/Personal Protection
Exposure Limits:

Working Environment Evaluation Standards, Exposure Limits inAppended Table (effective as of July 1, 2009):
Glass wool products are considered as minerals, and for work places
falling under the regulations relating to dust, the respirable dust
exposure limit shall be 3.0mg/m3 since the free silica shall be 0%.
 E = 3.0/(1.19Q + 1)
(E: Exposure limit, Q: Percentage of free silica contained in the dust[%])3 /7

ASAHI FIBER GLASS CO., LTD
Control Parameters (Exposure Limit
Value,Biological Standards):
Japan Society for Occupational
Health:Note 1:
Note 2:

ACGIH:
Note 1:
Note 2:Engineering Measures:
Personal Protective Equipment:
Respiratory Protection:

Hand Protection:
Eye Protection:
Skin and Body Protection:
Hygiene Measures:

SDS-GW-02("Journal of Occupational Health" Volume 56 (2014):
Glass wool: 1 (fiber)/ml
Dust permissible concentration:
 Respirable dust 2 mg/m3
 Total dust
8 mg/m3
Although the permissible concentration is regulated as the number offibers, this mainly indicates the value for skin irritation.
Dust is classified into Types 1, 2, 3 and asbestos dust, and the permissible
concentrations are regulated for each class. Glass fiber dust is considered as
Type 3 inorganic dust which has the highest permissible concentrations.
American Conference of Governmental Industrial Hygienists(ACGIH) (2010 ), Threshold Limit Values (TLV)
TLV-TWA 1 f/cc (glass wool)

Fibers with a length of 5 μm or more and an aspect ratio (length/diameter) of 3 or more.
TLV (Threshold Limit Value)–TWA (Time Weighted Average) is the time-weighted
average permissible concentration, which is defined as the time-weighted average
permissible concentration during a working time of 8 hours a day, 40 hours a week.
Known as the airborne concentration (8 hour average value), this is the concentration
at which the majority of workers, even if repeatedly exposed to this concentration
every day, will not develop any adverse health effects.

If dust is scattered during handling, install ventilating equipment tokeep dust level lower than the permissible concentration.
If the concentration of dust in the working environment can be expected
to exceed the limits given above, wear a dust mask.
It is recommended that for situations with high concentrations of dust, areplaceable type dust mask should be used, while a disposable dust
mask should be used when the concentrations are relatively low.
Wear appropriate protective gloves.
If necessary, protective equipment appropriate for the work should beutilized, such as goggles or protective glasses with side shields.
Protective equipment appropriate for the work should be used, such asloose-fitting long-sleeved work clothing.
After handling the material, be sure to wash hands and other body parts
which were exposed to the material.

9. Physical and Chemical Properties
Physical States :Form:Color, etc.:
Odor:

pH:
Melting Point and Freezing Point :Boiling Point, Initial Boiling
Point and Boiling Range:
Flash Point:
Spontaneous Ignition Temp.:
Combustion Characteristic(solid, gas):
Explosion Range:
Vapor Pressure:
Vapor Density:

Fibrous solid (ICSC 2000)
White or coloredClassification is not possible. Some odor may be sensed in some cases
where bad conditions, such as wet environment and insufficientventilation, are combined; however, it has been reported that such odor
could be suppressed after drying and ventilation.
No data available
No data available
No data available
Non-combustible (ICSC 2000)
Non-combustible (ICSC 2000)
No data available
Non-combustible (ICSC 2000)
Low (ICSC 2000)
No data available

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ASAHI FIBER GLASS CO., LTD
Evaporation Rate (butyl acetate = 1):
Specific Gravity (Density):
Solubility:n-octanol/Water Partition
Coefficient:
Decomposition Temperature:
Viscosity:
Lower Dust Explosion Limit(Temperature Limit):
Minimum Ignition Energy:
Volume Resistivity (DielectricConstant):

SDS-GW-02
No data available
2.5-4.3 g/cm3 (true specific gravity) (HSDB 2005)Water: insoluble (HSDB 2005)
No data available
No data available
No data available
No data available
No data available
No data available

10. Stability and Reactivity
Stability:
Hazardous Reaction Potential:
Condition to Avoid:
Incompatible Products:
Hazardous Decomposition
Products:

Products are stable under normal conditions.
No data available
No data available
No data available
No data available

11. Toxicological Information
Acute toxicity:
Oral route:
Skin route:Inhalation:
Skin Corrosion Property/ Irritation:

Serious eye damage/eye irritation:

Respiratory Organs Sensitization:
Skin Sensitization:

No data available
No data available
Inhalation (gas)Solid in room temperature
Inhalation (vapor)
No data available
Inhalation (dust)
No data available
Not classified
As a result of the 24-hour patch test on 43 subjects (adult males andfemales), using a glass wool sample, performed by Japan Hair Science
Association (JHSA), it was found that none of the subjects had any
reaction to the sample within the 24 hours following its removal.
[ Reference information from foreign literatures ]: (MHLW)• Due to occupational exposure, workers may suffer from skin irritation inresponse to physical stimulus; however, the impact on the skin is
temporary and can be controlled under proper work practices (ACGIH2001).
• The physical irritation is mostly caused when tested fibers have adiameter of 4.5-5 μm or larger. However, the irritation often goes away
while continuously being exposed [EHC77 (1988)].
• According to the analysis by the Finnish Institute of Occupational
Health on the occupational disease registry data, contact dermatitis due
to skin irritation is caused in a rate of only several (1 to 9 persons) per
100,000 workers.
Accordingly, the irritation is not regarded as a common cause of contact
dermatitis as a result of occupational exposure (HSDB 2005).
Not classified
Some cases of transient eye irritation have been individually reported byworkers, especially those who were not sufficiently protected fromexposure. However, the damage is neither serious not chronic (ACGIH
2001, ATSDR 2004), and it was attributable to a foreign object that got in
the eye but not caused particularly by the glass fiber dust (No incident
reported). Therefore, "Out of classification" is noted in this section.
No data available
Not classified (JHSA 2011)

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ASAHI FIBER GLASS CO., LTD
Germ Cell Mutagenicity:
Carcinogenicity:
Reproductive Toxicity:
Specified Target Organ/general(Toxicity - Single Exposure) :Specified Target Organ/general(Toxicity - Repetitive Exposure) :Aspiration Respiratory Organs
Hazard:SDS-GW-02
Classification not possible
Not classified (Classified to Group 3 in IARC 2002)
No data available
Not classified
No cases of physical damage have been reported. It is assumed thatfurther damage can also be prevented by paying attention to thecautions in "7. Handling and Storage" and "8. Exposure Control /Personal Protection".
Not classified (according to the same reason described above)
No data available

12. Ecological Information
Ecotoxicity
Persistance and degradability
Bioaccumulative potential
Mobility in soil
Ozone Depleting Potential

No data available
No data available
No data available
No data available
No data available

13. Disposal Considerations
Residual Waste:

Contaminated Containers orPackaging:

When disposing of the residual waste, dispose of in accordance with thelaw and local regulations. When the industrial waste management
contractors with the permission of the Metropolitan / Prefecturalgovernors or the local government handle the waste, entrust them withthe disposal.
Recycle, or dispose appropriately the packaging according to the law
concerned and the standard of the local government.

14. Transport Information
International Regulation:
Marine Regulation Information:
Aerial Regulation Information:
Domestic Regulation:
Overland Regulation
Information:
Marine Regulation
Information:
Aerial Regulation
Information:
Special Safety Measures:

Not applicableNot applicableNot applicableNot applicableNot applicable
When transporting the products, avoid direct contact with sunlight.
When loading the products, be careful not to damage, to corrode and/orto leak the container. Collapse shall be avoided and preventing action
shall be taken.
Do not put heavy goods on the product.

15. Regulatory Information
Pneumoconiosis Law / Ordinanceon Prevention of Hazards due toGlass wool is considered as a mineral under the Pneumoconiosis Law
Dust (Dust Ordinance):
and under the Ordinance on Prevention of Hazards due to Dust (DustOrdinance). When conducting the following work, the Pneumoconiosis
Law and Dust Ordinance will apply.

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ASAHI FIBER GLASS CO., LTD

Industrial Safety and Health Act:

Pollutant Release and Transfer
Register register:SDS-GW-02(1) Work carried out in places where the mineral (this product) is being
cut, chiseled or finished (Dust Ordinance; Item 6 of Attached Table 1).
(2) Work carried out in places where motive power is being used forcutting, crushing or screening the mineral (this product) (DustOrdinance; Item 8 of Attached Table 1).
Glass wool is an applicable substance under Article 57-2 “Issuing ofDocumentation” and Article 57-3 “Investigation of Toxicity of ChemicalSubstances” of the Occupational Safety and Health Act. In accordancewith the requirement of Article 57-3, an investigation of toxicity shall be
undertaken in advance at each business location as follows;(1) When newly using the material,(2) When employing a new handling instruction or method,(3) When there is a change in handling instructions or methods.
Glass wool is not a substance applicable under the PRTR (Pollutant
Release and Transfer Register) regulations.

16. Other Information
Reference Documents:

The reference data used in this sheet are as listed below.
1) ICSC: International Chemical Safety Card (2000)
2) ACGIH: American Conference of Governmental IndustrialHygienists (2001, 2010)
3) ATSDR: Agency for Toxic Substances and Disease Registry (2004)
4) EHC77: WHO International Programme on Chemical Safety,
Environmental Health Criteria 77 (1988)
5) IARC: International Agency for Research on Cancer (2002)
6) JSOH [Japan Society for Occupational Health (2014) ]7) HSDB: Hazardous Substances Data Bank (2005) of US National
Library of Medicine
8) JHSA [Japan Hair Science Association (2011) ]This information will be revised based on new knowledge.
Out of the included content, the information relating to the included amounts and physical and chemical properties are notcertified values. The hazard and toxicological evaluations were produced based on the documentation and data available at thecurrent point of time, and do not cover all materials. Description in the sections to which sufficient knowledge and findings havenot been obtained in Japan is made to be consistent to the evaluations by US & European industries.

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