I'm having the same concern. I originally went to lumber liquidators and found a nice hand scraped strand bamboo flooring. I then went online and researched a load of companies. So far, I like Cali bamboo. My biggest concern was the formaldehyde in the products. Cali bamboo has little to no formaldehyde added in there product. I've read those same reviews about Morning star, but they were outdated. I was emailed a material safety data sheet on Morning Star brand, but no one could tell me how much formaldehyde content was in the morning star product. At the bottom of the sheet there was a disclaimer: "The information and data herein are believed to be accurate and have been compiled from sources deemed to be reliable. It is offered for your consideration, investigation and verification. Lumber Liquidators makes no warranty of any kind, express or implied, concerning the accuracy of completeness of the information and data herein. Lumber Liquidators will not be liable for claims relating to any party's use of or reliance on information and data contained herein regardless of whether it is claimed that the information and data are inaccurate, incomplete or otherwise misleading. It is incumbent upon the user to obtain the most up-to-date information". So I guess what they mean is that the info on the safety data sheet is BS. I'd like to know. Cali bamboo is great, but I actually prefer the hand scraped look they have from Morning Star at lumber liquidators. Does anyone know if Morning Stars 2011 line has added formaldehyde?? (That's the lovely odor you smell from the floors). I can't seem to be able to get a solid answer. This is what the safety data sheet states for Morning Star: 3000 John Deere Road Toano, VA 23168 Emergency phone: 1 800-HARDWOOD Fax: 1 757 259 7295 IMPORTANT NOTICE: This material Safety Data Sheet (MSDS) is issued by LUMBER LIQUIDATORS. LUMBER LIQUIDATORS flooring will issue a new MSDS when there is a change in product specifications and/or regulations. LUMBER LIQUIDATORS will not accept any responsibility for any change to its MSDS in content by other person or organization. IDENTIFICATION Product name: Prefinished Strand Bamboo Flooring Trade name: Morning Star Bamboo Flooring Other Names: Various Manufacturer Information: Lumber Liquidators Inc 3000 John Deere Road Toano, VA 23168 Tel: (757) 259-4280 Fax: (757) 259-7295 www.lumberliquidators.com Description: This product is composed of bamboo fibers bonded together with urea formaldehyde (UF) resins. The fibers are mixed and pressed together to give a unique shade blend and increase hardness. The wear layer is finished by 7 coats of polyurethane with aluminum oxide coating manufactured by Treffert or Klumpp UN number: Not applicable Dangerous goods class: Not applicable Product Use: Building Materials � Commercial or Residential MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 2 of 7 Hazardous ingredients/identity information: Name CAS #2 % Agency Exposure Limits Comments Bamboo1 None 89-90 OSHA3 OSHA ACGIH4 ACGIH PEL5-TWA6 15 mg/m3 PEL-TWA 5 mg/m3 TLV7-TWA 3 mg/m3 TLV-STEL8 10 mg/m3 Total dust Respirable dust fraction Respirable dust fraction Inhalable particles Urea Formaldehyde resin solids 9011- 05-6 10-11 OSHA OSHA ACGIH PEL-TWA 0.75ppm PEL-STEL 2 ppm TLV - Ceiling 0.3 ppm Free gaseous formaldehyde (contains less than 0.1% free formaldehyde) UV Finish Polymerized polyurethane None 0-1 OSHA ACGIH PEL-TWA none TLV-TWA none None None 1 CAS # = Chemical Abstract System. 2 OSHA = Occupational Safety and Health Administration. 3 AGCIH = American Conference of Government Industrial Hygienists. 4 PEL = Permissible Exposure Limit. 5 TWA = Time Weighted Average. 6 TLV = Threshold Limit Value. 7 STEL = Short Term Exposure Limit Note: Bamboo is a member of the grass family which has distinct anatomical differences from that of wood. Therefore, bamboo would be regulated as an organic dust in a category known as "Particulates Not Otherwise Regulated" (PNOR), or Nuisance Dust by OSHA. The ACGIH classifies dust or particulate in this category as "Particulates Not otherwise Specified". Physical data: Physical State: Solid Boiling Point: Not applicable Freezing Point: Not applicable Specific Gravity: 0.58 g/ml Vapour Density: Not applicable % Volatiles By Volume: 0 Melting Point: Not applicable Vapour Pressure: Not applicable Percent Moisture 5% - 9% Solubility in H20 (% by wt.): Evaporation Rate (Butyl Acetate = 1): Not applicable pH: Not applicable MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 3 of 7 Appearance and odor: Bamboo fibers mixed creating a shade blend unique to each plank (light yellows for natural, light browns for carbonized or a mix of lights yellows and light browns shades). This product can also be stained with various colors. Low-fuming urea formaldehyde resins have a slightly aromatic odor. Fire and explosion data: Flash Point: Not applicable Auto ignition Temperature: Not available, however, it is usually accepted that the ignition of bamboo begins when the temperature reaches 204-260�C (400�500�F). (Depends upon duration of exposure to heat source and other variables). Explosive Limits in Air: Not applicable. See below under "Unusual fire and explosion hazards" Extinguishing Media Water, Carbon dioxide, Dry chemical, Sand. Special Fire Fighting Procedures None Unusual Fire and Explosion Hazards Sawing, sanding or machining can produce bamboo dust as a by-product which may present an explosion hazard if a dust cloud contacts an ignition source. An airborne concentration of air is often used as the LEL for bamboo dust. Reactivity data: Conditions Contributing to Instability Stable under normal conditions Conditions to avoid Excessive moisture, condensation or water vapor; Open flame or conditions above 400 F. Incompatibility Avoid contact with oxidizing agents. Avoid open flame. Product may ignite when temperature reaches in excess of 204�C (400�F). Hazardous Decomposition Products Thermal and/or thermal oxidative decomposition can produce irritating and toxic fumes and gases, including carbon monoxide, hydrogen cyanide, aldehydes, organic acids and polynuclear aromatic compounds. Hazardous Polymerization Not applicable MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 4 of 7 HEALTH HAZARD INFORMATION Carcinogenicity Listing: (X) NTP1: Group 2, A & B Formaldehyde, Wood dust NTP-Group 2: Reasonably anticipated to be a carcinogen. A) Limited evidence of carcinogenicity from studies in humans which indicates that causal relationship is credible. B) Sufficient evidence of carcinogenicity from studies in experimental animals (X) IARC2 Monographs; Formaldehyde, Group 2A, Wood dust, Group 1 IARC-Group 1: Carcinogenic to humans; sufficient evidence of carcinogenicity. This classification is primarily based on studies showing an association between occupational exposure to wood dust and adenocarcinoma of the nasal cavities and paranasal sinuses. (X) OSHA3 Regulated: Formaldehyde IARC-Group 2A: Probably carcinogenic to humans; limited human evidence and sufficient evidence in experimental animals. Studies of cancer incidence among workers in a wide variety of occupations have failed to convincingly show carcinogenic activity of formaldehyde in humans. Gaseous formaldehyde has been shown to cause cancer in certain laboratory animals after long-term exposure to very high concentrations (14+ ppm); concentrations which are far above the levels of formaldehyde gas emitted by this product. 1 NTP = National Toxicology Program 2 IARC = International Agency for Research on Cancer 3 OSHA = Occupational Safety and Health Administration Exposure hazard: Eye Contact Wood dust can cause mechanical irritation such redness and watering. Skin Contact Not applicable for this product in its purchased form, however various species of wood dust may evoke allergic contact dermatitis in sensitized individuals. High concentrations of gaseous formaldehyde may cause allergic contact dermatitis. Ingestion Not likely to occur under normal use. If ingested, may cause gastrointestinal tract irritation. MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 5 of 7 Inhalation Not applicable for this product in its purchased form, however, wood dust may cause nasal dryness, irritation and obstruction. Coughing and sneezing; sinusitis and prolonged colds have also been reported. Wood dust, depending on species, may cause respiratory sensitization and/or irritation. However, gaseous formaldehyde may cause respiratory difficulties for sensitized/allergic individuals. Emergency and first aid procedures: Eyes Flush eyes with large amounts of water. Remove to fresh air. If irritation persists, get medical attention. Skin Wash affected areas with soap and water. Get medical advice if rash or persistent irritation or dermatitis occurs. Inhalation Although not applicable for this product in its purchased form. However, if inhalation of bamboo dust, remove to fresh air. Get medical advice if persistent irritation, severe coughing or breathing difficulty occurs. Ingestion Not applicable under normal use. PRECAUTIONS FOR USE Accidental Release Measures Not applicable for product in purchased form. Dust generated from sawing, sanding, drilling, or routing of products may be vacuumed or shoveled for recovery or disposal. Avoid dusty conditions and provide good ventilation. A NIOSH-approved dust respirator should be worn if dust exposure limits are exceeded. Handling and Storage No special handling precautions are required for products in purchased form. Keep in cool, dry place away from open flame. This product will release small quantities of gaseous formaldehyde (â¤0.12 mg/m3, which is below the E1 classification in accordance with EN 717-1:1998 test methods). Store in well ventilated area. MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 6 of 7 Personal Protective Equipment: Respiratory Protection Not applicable for product in purchased form. A NIOSH-approved dust respirator is recommended when allowable exposure limits are exceeded. Protective Gloves Not required. However, cloth, canvas, or leather gloves are recommended to minimize potential mechanical irritation slivers from handling and machining product. Eye Protection Not applicable for product in purchased form. Goggles or safety glasses are recommended when machining this product. Other Protective Clothing or Equipments Not applicable for product in purchased form. Outer garments may be desirable in extremely dusty areas. Work/Hygiene Practices Follow good hygienic and housekeeping practices. Clean up areas where wood dust settles to avoid excessive accumulation of this combustible material. Minimize blowdown or other practices that generate high airborne-dust concentrations. Local Exhaust Provide local exhaust as needed so that exposure limits are met. Special / other None OTHER INFORMATION Disposal Consideration If disposed of or discarded in its purchased form, incineration is preferable. Dry land disposal is accepted in most states. It is, however, the user�s responsibility to determine at the time of disposal whether your product meets RCRA criteria for hazardous waste. Follow applicable federal, state, and local regulations. Transport and Regulatory information Not regulated as hazardous material by the U.S Department of Transportation and the Canadian Transportation of Dangerous Goods (TDG). Not a controlled product by WHMIS

"We have decided to pay for the remediation of the mold ourselves, but I was surprised that there are no regulations about using dry wood". Since you have already taken action to have mold remediation performed, you have wisely decided your health is more important than other concerns in this situation. If you spent an enormous amount of money for mold remediation and health treatment, you may wish to consult your attorney to see if the framer is liable to reimburse you for these costs. The remaining long post below is for others who wonder what is all this hype about mold. I am a licenced contractor who deals with mold issues in connection with water intrusion damage to homes. In my years dealing with mold problems, I have come to understand mold from a different point of view than the average contractor or homeowner. To start, some background about mold. Mold is any of the thousands of kinds of fungus which inhabit the earth. Most mold is parasitic, and feeds off wood or vegetable matter that is found in nature. For various kinds of mold, there are different environmental conditions that promote their growth and survival. We usually associate warm, damp conditions with mold, but mold can live in many conditions from very wet to nearly dry, cold or warm. As partr of their reproductive cycle, molds create spores which are released into the air and settle on new surfaces where they can grow as new molds if conditions are favorable. Mold spores are microscopic spheres which can become airborne. But these airborne spheres usually have a coating on thier surface consisting of myotoxins -- (poisons that can cause allergic reactions or severe health problems when inhaled, or adhered to your skin). However, some mold spores are more toxic than others, and some people are more sensitive to these myotoxins than other people are. So we see a vast variation when we read reports from different people that mold is a health problem. Also note that theses mold spores are in the air even when there is no known mold that can be seen growing nearby. Mold spores are as common as dust in the air. Most people are acclimated to the normal levels of mold spores that are suspended in the air that they breathe. But if there are places that have a heavy mold growths, we often hear complaints from people that they can smell the mold, or they are experiencing allergic reactions. Perhaps I am one of the lucky people who is more resistant. I have been in areas with heavy mold growth which have caused homeowners to move out of their home because of their severe reactions, without returning until our crews removed the contaminated materials and treated the mold. On the other hand, I have seen most of the mold testing usually shows that penicillin is one of the most common molds found in most homes. This is known to be a kind of mold that is used as a medicine to fight bacterial infections. Because of the undefined health risks of mold, there have been no laws that specifically determined what levels of mold are acceptable, or what methods must be used to treat the mold to make a home safe and habitable. It seems to be more of a personal choice for each indiviual to determine what is acceptable or not. But there are certain established methods of mold abatement which are accepted in the industry. Before we get into the mold abatement methods, let's take a look at the other side of mold problems with wood. Some kinds of mold can attack the wood in a manner that makes the wood weak, so it does not serve its function as a structural member. But other kinds of mold are relatively harmless to wood or to people who are near the mold. As an example, some new lumber at the lumber yard has a spotty black coating on the surface when you buy it. These black spots are mold, which is usually found on "green lumber" which may feel wet or damp to the touch. But they are not generally harmful to the wood structure, because they are only growing on the surface, and they usually stop growing after the wood is nailed in place and has a chance to dry out. But if wood is stacked so it does not dry, then other kinds of mold can grow which appear often as white webbed strands on the surface, that can weaken the wood so badly that you can break it by stomping on a board. This usually takes some time for mold to penetrate that deep into the wood, so it is rarely seen home construction because the construction wood has a chance to dry from the time it is nailed in place. A second kind of mold damage to wood is seen in exterior wood that is exposed to the weather, especially in decks and in outdoor patio covers and trellises. It is usually called dryrot, but it is actually a mold which grows in wet conditions. The dryrot mold grows when the wood is drying after becoming wet. The mold likes the damp wood fibers, and will penetrate into the interior of beams and deck planks, especially in corners and seams where water is trapped so it cannot dry quickly. Dryrot mold can destroy the fiber strength so it is so soft that you can push your finger into the surface of a board. This is the reason why deck planks are usually spaced at least 1/4 inch apart, so the water can drain, and air can dry the space between planks. So we see there are two problems with mold -- a health problem and a structural problem. The structural problem can be solved by replacing the contaminated wood members. But if the wood has not lost its strength (no soft spots), then there is no reason to replace it. You can simply kill the mold so it cannot spread, then take precautions so new mold will not grow on the wood. How to remediate mold that is causing health problems? For the health problems, the usual method is to first remove all the mold from the surfaces that you can find. Then kill the mold with a fungicide. Ordingary bleach (sodium hypochlorite) will do this (You can also buy a commercial fungicide to kill the mold instead of using bleach). Dilute your bleach with half water or use your fungicide and spray all the surfaces that were contaminated, where you removed the mold from. Be sure to scrub the surfaces with a green kitchen scrubber or brushes soaked in the bleach solution. Then after everything dries for a day or two, paint it with primer paint like Kilz to encapsulate any microscopic mold spores that may be remaining on the surface. The primer will coat these remaining spores so they cannot escape into the air where you can breathe them. Note: These mold spores still contain the myotoxins even after you use the bleach or fungicide to kill the mold, so they are still a health threat. If you are sensitive to mold, then be sure to wear a mask with a filter so you don't breath the spores while you are working. Also wear rubber gloves, and even tyvex overalls taped at the wrists and feet to keep the spores from getting on your clothes. You can throw the overalls and gloves away when you are done with the mold abatement. This is the general procedure that people pay thousands of dollars to hire a professional mold abatement company to perform. About the particular problem of mold from the porch header circulating through the house, here are my thoughts: Generally speaking, there is no code that specifies when a piece of lumber has too much mold on it to be used for construction. There may be some local codes, but I can not imagine how they could specify the exact dividing line where the amount of mold or type of mold is acceptable or not. Ususally, if there is an ugly mold growth, a framer will discard the contaminated lumber and replace it. But this seems to be a judgment call by the framer. From the scenario above, I have visions of a framer who was thinking that its a whole lot of trouble to dig that header out and replace it, so it is good enough to leave it be. If the mold was really bad, the building inspector could tell a framer that the wood he used is not in good enough condition to pass the inspection, and require that he must replace it. I have never seen this done, but then I have never seen a framer use lumber that had mold actively growing on the lumber that he used for his remodeling other than that black spotty mold we often see on new lumber. If your building inspector has no problem with the header, then the only remaining objection is the objection that you raise. Your concern may be that you simply don't like the idea of using moldy wood to enclose inside your home -- (an objection which I agree with). Or maybe someone in your home is having health problems because of the increased mold spore levels inside the home. In any case, this is a problem you need to address with your framer, because there are no laws I know of that require him to remove it. It is best to specify that all the moldy wood is to be removed before any work starts, and have the cost of remodeling include this work. Otherwise, you are dealing with problems that could have been solved in the beginning instead of later. Some other notes about remodeling and mold: The mold from new lumber is not as toxic as some varieties which grow when persistent water is leaking onto surfaces in your home. Any surface mold on the studs is contained within the walls, and will stop growing when the wood has fully dried (less than 90 days). I doubt any of the spores will find a reason to move from the surface of the lumber past the drywall or to the ductwork where they can migrate to the interior of the home. During the remodeling, there may be higher levels than normal for mold spores and dust levels. But this will subside to normal levels after the construction is done. Unless someone in the home is super-sensitive to the surface mold that sometimes is found on new lumber, it does not seem like it will be a problem after the construction is done. You can take precautions if you are concerned, such as special air filters fitted to the furnace or even an electtrostatic collector to remove tiny particles suspended in the air stream. To answer the question: Is the framer required to use new lumber instead of lumber that was weathered outdoor for years? Probably not. It depends on local codes and what your local building inspectors will accept. Hopefully your framer will replace old weathered lumber it to keep you as a happy client and reference for future work he does. You can read here to learn a little more about residential mold problems: http://www.cdc.gov/mold/stachy.htm con_j

I am the original poster. Wow, lots of discussion on this. I took more photos. It will be one of my winter projects here. As to why it cracked, my hunch is that it was just a crappy piece on site and they used it anyway. I don't see any smoking gun that could have caused it after the fact. The flooring above in the master bedroom is carpet. Nothing in the bedroom area of the cracked joist that is of significant weight. I could run a string line on either side of the crack to see if it is dipping significantly versus the other joists. I managed to get a straight 2x10x8 for the job. Actually got four, just in case I find other spots as I remove dropped ceiling tiles to do other work. So I could shove the new joist all the way to the rim, but there is no way to get it tight up against the left side as in the photo, because of that "peel" coming off. So I guess the plan is to jack it up slightly, use clamps, construction adhesive, 10d nails 6" on center. I imagine marking a "crack path line" in pencil on the new joist would allow me to keep the nails 1.5" away from the crack lines on the damaged one. I do have a palm nailer to use as well. Would ring shank/spiral nails be better to use, or makes no difference? To the left, on top of the wall, is another joist, more closely spaced to the problem joist than the one to the right of it. By the cross slash mark and the knot, you can see a roughly 2.5" wide "peel" coming from the nailing point on the rim joist. The sister. Straight 8 footer.

I'm having the same concern. I originally went to lumber liquidators and found a nice hand scraped strand bamboo flooring. I then went online and researched a load of companies. So far, I like Cali bamboo. My biggest concern was the formaldehyde in the products. Cali bamboo has little to no formaldehyde added in there product. I've read those same reviews about Morning star, but they were outdated. I was emailed a material safety data sheet on Morning Star brand, but no one could tell me how much formaldehyde content was in the morning star product. At the bottom of the sheet there was a disclaimer: "The information and data herein are believed to be accurate and have been compiled from sources deemed to be reliable. It is offered for your consideration, investigation and verification. Lumber Liquidators makes no warranty of any kind, express or implied, concerning the accuracy of completeness of the information and data herein. Lumber Liquidators will not be liable for claims relating to any party's use of or reliance on information and data contained herein regardless of whether it is claimed that the information and data are inaccurate, incomplete or otherwise misleading. It is incumbent upon the user to obtain the most up-to-date information". So I guess what they mean is that the info on the safety data sheet is BS. I'd like to know. Cali bamboo is great, but I actually prefer the hand scraped look they have from Morning Star at lumber liquidators. Does anyone know if Morning Stars 2011 line has added formaldehyde?? (That's the lovely odor you smell from the floors). I can't seem to be able to get a solid answer. This is what the safety data sheet states for Morning Star: 3000 John Deere Road Toano, VA 23168 Emergency phone: 1 800-HARDWOOD Fax: 1 757 259 7295 IMPORTANT NOTICE: This material Safety Data Sheet (MSDS) is issued by LUMBER LIQUIDATORS. LUMBER LIQUIDATORS flooring will issue a new MSDS when there is a change in product specifications and/or regulations. LUMBER LIQUIDATORS will not accept any responsibility for any change to its MSDS in content by other person or organization. IDENTIFICATION Product name: Prefinished Strand Bamboo Flooring Trade name: Morning Star Bamboo Flooring Other Names: Various Manufacturer Information: Lumber Liquidators Inc 3000 John Deere Road Toano, VA 23168 Tel: (757) 259-4280 Fax: (757) 259-7295 www.lumberliquidators.com Description: This product is composed of bamboo fibers bonded together with urea formaldehyde (UF) resins. The fibers are mixed and pressed together to give a unique shade blend and increase hardness. The wear layer is finished by 7 coats of polyurethane with aluminum oxide coating manufactured by Treffert or Klumpp UN number: Not applicable Dangerous goods class: Not applicable Product Use: Building Materials � Commercial or Residential MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 2 of 7 Hazardous ingredients/identity information: Name CAS #2 % Agency Exposure Limits Comments Bamboo1 None 89-90 OSHA3 OSHA ACGIH4 ACGIH PEL5-TWA6 15 mg/m3 PEL-TWA 5 mg/m3 TLV7-TWA 3 mg/m3 TLV-STEL8 10 mg/m3 Total dust Respirable dust fraction Respirable dust fraction Inhalable particles Urea Formaldehyde resin solids 9011- 05-6 10-11 OSHA OSHA ACGIH PEL-TWA 0.75ppm PEL-STEL 2 ppm TLV - Ceiling 0.3 ppm Free gaseous formaldehyde (contains less than 0.1% free formaldehyde) UV Finish Polymerized polyurethane None 0-1 OSHA ACGIH PEL-TWA none TLV-TWA none None None 1 CAS # = Chemical Abstract System. 2 OSHA = Occupational Safety and Health Administration. 3 AGCIH = American Conference of Government Industrial Hygienists. 4 PEL = Permissible Exposure Limit. 5 TWA = Time Weighted Average. 6 TLV = Threshold Limit Value. 7 STEL = Short Term Exposure Limit Note: Bamboo is a member of the grass family which has distinct anatomical differences from that of wood. Therefore, bamboo would be regulated as an organic dust in a category known as "Particulates Not Otherwise Regulated" (PNOR), or Nuisance Dust by OSHA. The ACGIH classifies dust or particulate in this category as "Particulates Not otherwise Specified". Physical data: Physical State: Solid Boiling Point: Not applicable Freezing Point: Not applicable Specific Gravity: 0.58 g/ml Vapour Density: Not applicable % Volatiles By Volume: 0 Melting Point: Not applicable Vapour Pressure: Not applicable Percent Moisture 5% - 9% Solubility in H20 (% by wt.): Evaporation Rate (Butyl Acetate = 1): Not applicable pH: Not applicable MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 3 of 7 Appearance and odor: Bamboo fibers mixed creating a shade blend unique to each plank (light yellows for natural, light browns for carbonized or a mix of lights yellows and light browns shades). This product can also be stained with various colors. Low-fuming urea formaldehyde resins have a slightly aromatic odor. Fire and explosion data: Flash Point: Not applicable Auto ignition Temperature: Not available, however, it is usually accepted that the ignition of bamboo begins when the temperature reaches 204-260�C (400�500�F). (Depends upon duration of exposure to heat source and other variables). Explosive Limits in Air: Not applicable. See below under "Unusual fire and explosion hazards" Extinguishing Media Water, Carbon dioxide, Dry chemical, Sand. Special Fire Fighting Procedures None Unusual Fire and Explosion Hazards Sawing, sanding or machining can produce bamboo dust as a by-product which may present an explosion hazard if a dust cloud contacts an ignition source. An airborne concentration of air is often used as the LEL for bamboo dust. Reactivity data: Conditions Contributing to Instability Stable under normal conditions Conditions to avoid Excessive moisture, condensation or water vapor; Open flame or conditions above 400 F. Incompatibility Avoid contact with oxidizing agents. Avoid open flame. Product may ignite when temperature reaches in excess of 204�C (400�F). Hazardous Decomposition Products Thermal and/or thermal oxidative decomposition can produce irritating and toxic fumes and gases, including carbon monoxide, hydrogen cyanide, aldehydes, organic acids and polynuclear aromatic compounds. Hazardous Polymerization Not applicable MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 4 of 7 HEALTH HAZARD INFORMATION Carcinogenicity Listing: (X) NTP1: Group 2, A & B Formaldehyde, Wood dust NTP-Group 2: Reasonably anticipated to be a carcinogen. A) Limited evidence of carcinogenicity from studies in humans which indicates that causal relationship is credible. B) Sufficient evidence of carcinogenicity from studies in experimental animals (X) IARC2 Monographs; Formaldehyde, Group 2A, Wood dust, Group 1 IARC-Group 1: Carcinogenic to humans; sufficient evidence of carcinogenicity. This classification is primarily based on studies showing an association between occupational exposure to wood dust and adenocarcinoma of the nasal cavities and paranasal sinuses. (X) OSHA3 Regulated: Formaldehyde IARC-Group 2A: Probably carcinogenic to humans; limited human evidence and sufficient evidence in experimental animals. Studies of cancer incidence among workers in a wide variety of occupations have failed to convincingly show carcinogenic activity of formaldehyde in humans. Gaseous formaldehyde has been shown to cause cancer in certain laboratory animals after long-term exposure to very high concentrations (14+ ppm); concentrations which are far above the levels of formaldehyde gas emitted by this product. 1 NTP = National Toxicology Program 2 IARC = International Agency for Research on Cancer 3 OSHA = Occupational Safety and Health Administration Exposure hazard: Eye Contact Wood dust can cause mechanical irritation such redness and watering. Skin Contact Not applicable for this product in its purchased form, however various species of wood dust may evoke allergic contact dermatitis in sensitized individuals. High concentrations of gaseous formaldehyde may cause allergic contact dermatitis. Ingestion Not likely to occur under normal use. If ingested, may cause gastrointestinal tract irritation. MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 5 of 7 Inhalation Not applicable for this product in its purchased form, however, wood dust may cause nasal dryness, irritation and obstruction. Coughing and sneezing; sinusitis and prolonged colds have also been reported. Wood dust, depending on species, may cause respiratory sensitization and/or irritation. However, gaseous formaldehyde may cause respiratory difficulties for sensitized/allergic individuals. Emergency and first aid procedures: Eyes Flush eyes with large amounts of water. Remove to fresh air. If irritation persists, get medical attention. Skin Wash affected areas with soap and water. Get medical advice if rash or persistent irritation or dermatitis occurs. Inhalation Although not applicable for this product in its purchased form. However, if inhalation of bamboo dust, remove to fresh air. Get medical advice if persistent irritation, severe coughing or breathing difficulty occurs. Ingestion Not applicable under normal use. PRECAUTIONS FOR USE Accidental Release Measures Not applicable for product in purchased form. Dust generated from sawing, sanding, drilling, or routing of products may be vacuumed or shoveled for recovery or disposal. Avoid dusty conditions and provide good ventilation. A NIOSH-approved dust respirator should be worn if dust exposure limits are exceeded. Handling and Storage No special handling precautions are required for products in purchased form. Keep in cool, dry place away from open flame. This product will release small quantities of gaseous formaldehyde (≤0.12 mg/m3, which is below the E1 classification in accordance with EN 717-1:1998 test methods). Store in well ventilated area. MSDS Morning Star Strand Bamboo Flooring, Revision 3, April 2009 Page 6 of 7 Personal Protective Equipment: Respiratory Protection Not applicable for product in purchased form. A NIOSH-approved dust respirator is recommended when allowable exposure limits are exceeded. Protective Gloves Not required. However, cloth, canvas, or leather gloves are recommended to minimize potential mechanical irritation slivers from handling and machining product. Eye Protection Not applicable for product in purchased form. Goggles or safety glasses are recommended when machining this product. Other Protective Clothing or Equipments Not applicable for product in purchased form. Outer garments may be desirable in extremely dusty areas. Work/Hygiene Practices Follow good hygienic and housekeeping practices. Clean up areas where wood dust settles to avoid excessive accumulation of this combustible material. Minimize blowdown or other practices that generate high airborne-dust concentrations. Local Exhaust Provide local exhaust as needed so that exposure limits are met. Special / other None OTHER INFORMATION Disposal Consideration If disposed of or discarded in its purchased form, incineration is preferable. Dry land disposal is accepted in most states. It is, however, the user�s responsibility to determine at the time of disposal whether your product meets RCRA criteria for hazardous waste. Follow applicable federal, state, and local regulations. Transport and Regulatory information Not regulated as hazardous material by the U.S Department of Transportation and the Canadian Transportation of Dangerous Goods (TDG). Not a controlled product by WHMIS