SDS - GT pH Buffer 4 - 230109

Page 1/5 SAFETY DATA SHEET According to Safe Work Australia Revision: 09/01/2023

[ 1 . IDENTIFICATION: PRODUCT IDENTIFIER AND CHEMICAL IDENTITY Product Name: pH 4.00 BUFFER Other Means of Identification: Mixture Recommended Use of the Chemical and Restriction on Use: Used for calibrating pH meters The product is not classified as hazardous according to the Globally Harmonized System (GHS). Signal Word Void Hazard Statements Void

[ 3. COMPOSITION AND INFORMATION ON INGREDIENTS Chemical Characterization: Mixtures Description: Mixture of substances listed below with nonhazardous additions. Hazardous Components: Void Non Hazardous Components: 877-24-7 1,2-Benzenedicarboxylic acid, monopotassium salt <10%

[ 4 . FIRST AID MEASURES Inhalation: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Seek medical attention if breathing problems develop. Skin Contact: In case of skin contact, remove contaminated clothing and wash affected areas with water and soap. Seek medical attention if symptoms occur. Eye Contact: In case of eye contact, immediately hold eyelids open and rinse with water for at least 15 minutes. Seek medical attention if symptoms occur. Ingestion: If swallowed, do not induce vomiting. Rinse mouth with water. Give plenty of water. Never give anything by mouth to an unconscious person. Seek immediate medical attention. Symptoms Caused by Exposure: Eye Contact: May cause irritation to eye tissue. Ingestion: Large quantities may cause gastrointestinal irritation. (Contd. on page 2)

Page 2/5 SAFETY DATA SHEET According to Safe Work Australia Revision: 09/01/2023 Product Name: pH 4.00BUFFER Medical Attention and Special Treatment: Treat symptomatically

5 . FIRE FIGHTING MEASURES Suitable Extinguishing Media: Water spray, foam or dry chemical. Specific Hazards Arising from the Chemical: Hazardous combustion products include oxides of carbon. Special Protective Equipment and Precautions for Fire Fighters: Wear Safe Work Australia approved self-contained breathing apparatus and full protective clothing.

6 . ACCIDENTAL RELEASE MEASURES Personal Precautions, Protective Equipment and Emergency Procedures: Wear Safe Work Australia approved respiratory protection, chemical resistant gloves, protective clothing and safety boots. Evacuate all non-essential personnel from affected area. Do not breathe vapours. Ensure adequate ventilation. Environmental Precautions: In the event of a major spill, prevent spillage from entering drains or water courses. Methods and Materials for Containment and Cleaning Up: Stop leak if safe to do so and absorb spill with s and, earth, vermiculite or some other absorbent material. Collect the spilled material and place into a suitable container for disposal.

7 . HANDLING ANDSTORAGE Precautions for Safe Handling: Use of safe work practices are recommended to avoid eye or skin contact and inhalation of vapours. Use only outdoors or in a well-ventilated area. Food, beverages and tobacco products should not be stored or consumed where this material is in use. Always wash hands before smoking, eating, drinking or using the toilet. Wash contaminated clothing and other protective equipment before storage or re-use. Provide eyewash fountains and safety showers in close proximity to points of potential exposure. Conditions for Safe Storage: Store in a cool, dry and well ventilated area and in original container. Keep container tightly closed when not in use.

8 . EXPOSURE CONTROLS AND PERSONAL PROTECTION Exposure Standards: The product does not contain any relevant quantities of materials with critical values that have to be monitored at the workplace. Engineering Controls: Ensure adequate ventilation of the working area. Respiratory Protection: Use a Safe Work Australia approved vapour respirator under conditions where exposure to the substance is apparent (e.g. generation of high concentrations of mist or vapour, inadequate ventilation, development of respiratory tract irritation) and engineering controls are not feasible. See Australian Standards AS/NZS 1715 and 1716 for more information. Skin Protection: PVC, PVA, nitrile, neoprene, rubber or vinyl gloves. See Australian/New Zealand Standard AS/NZS 2161 for more information. When selecting gloves for use against certain chemicals, the degradation resistance, permeation rate and permeation breakthrough time should be considered. Occupational protective clothing (depending on conditions in which it has to be used, in particular as regards the period for which it is worn, which shall be determined on the basis of the seriousness of the risk, the frequency of exposure to the risk, the characteristics of the workstation of each worker and the performance of (Contd. on page 3)

Page 3/5 SAFETY DATA SHEET According to Safe Work Australia Revision: 09/01/2023 Product Name: pH 4.00BUFFER (Contd . of page 2) the protective clothing). See Australian/New Zealand Standard AS/NZS 4501 for more information. Eye and Face Protection: Eye and face protectors for protection against splashing materials or liquids. See Australian/New Zealand Standard AS/NZS 1337 for more information.

9 . PHYSICAL AND CHEMICAL PROPERTIES Appearance: Form: Liquid Colour: Red Odour: No information available Initial Boiling Point/Boiling Range: -100 °C Flash Point: Not applicable Flammability: Product is not flammable. Explosion Limits: Lower: Not applicable Upper: Not applicable Vapour Pressure at 25 °C: -25 mmHg Relative Density: 1 Solubility in Water: Miscible in all proportions

[10 . STABILITY AND REACTIVITY Possibility of Hazardous Reactions: Hazardous polymerisation will not occur. Chemical Stability: Stable at ambient temperature and under normal conditions of use. Conditions to Avoid: No further relevant information available. Incompatible Materials: No further relevant information available. Hazardous Decomposition Products: Oxides of carbon.

[11 . TOXICOLOGICAL INFORMATION Toxicity: LD50 Values Relevant for Classification: No information available Acute Health Effects Inhalation: No adverse health effects expected. Skin: May cause skin irritation. Eye: May cause irritation to eye tissue. Ingestion: Large quantities may cause gastrointestinal irritation. Skin Corrosion / Irritation: Based on classification principles, the classification criteria are not met. Serious Eye Damage/ Irritation: Based on classification principles, the classification criteria are not met. Respiratory or Skin Sensitisation: Based on classification principles, the classification criteria are not met. Germ Cell Mutagenicity: Based on classification principles, the classification criteria are not met. Carcinogenicity: This product does NOT contain any IARC listed chemicals. Reproductive Toxicity: Based on classification principles. the classification criteria are not met. Specific Target Organ Toxicity (STOT) - Single Exposure: Based on classification principles, the classification criteria are not met. (Contd. on page 4)

Page 4/5 SAFETY DATA SHEET According to Safe Work Australia Revision: 09/01/2023 Product Name: pH 4.00BUFFER (Contd. of page 3) Specific Target Organ Toxicity (STOT) - Repeated Exposure: Based on classification principles, the classification criteria are not met. Aspiration Hazard: Based on classification principles, the classification criteria are not met. Chronic Health Effects: No information available Existing Conditions Aggravated by Exposure: No information available

[12 . ECOLOGICAL INFORMATION Ecotoxicity: No information available Aquatic toxicity: No information available Persistence and Degradability: No information available Bioaccumulative Potential: No information available Mobility in Soil: No information available

13 . DISPOSAL CONSIDERATIONS Disposal Methods and Containers: Dispose according to applicable local and state government regulations. Special Precautions for Landfill or Incineration: Please consult your state Land Waste Management Authority for more information.

[14 . TRANSPORT INFORMATION UN Number Not regulated Proper Shipping Name Not regulated Dangerous Goods Class Not regulated Packing Group: Not regulated

15. REGULATORY INFORMATION Australian Inventory of Chemical Substances: 877-24-7 1,2-Benzenedicarboxylic acid, monopotassium salt Standard for the Uniform Scheduling of Drugs and Poisons (SUSMP) - Poison Schedule: Not Scheduled.

[16 . OTHER INFORMATION Creation Date: 24.02.2015 Reviewed: 22/07/2022 Prepared by: Pty Ltd Abbreviations and acronyms: GHS: Globally Harmonized System of Classification and Labelling of Chemicals EINECS: European Inventory of Existing Commercial Chemical Substances ELINCS: European List of Notified ChemicalSubstances GAS: Chemical Abstracts Service (division of the American Chemical Society) IARC: International Agency for Research on Cancer STEL: Short Term Exposure Limit TWA: Time Weighted Average NES: National Exposure Standard (Safe Work Australia - Workplace Exposure Standards For Airborne Contaminants) (Contd. on page 5)

Page 5/5 SAFETY DATA SHEET According to Safe Work Australia Revision: 09/01/2023 Product Name: pH 4.00BUFFER Disclaimer (Contd . of page 4) This MSDS is prepared in accord with the Safe Work Australia document "Code of Pra ctice for the Preparation of Safety Data Sheets for Hazardous Chemicals - December 2011" The information contained in this material safety data sheet is provided in good faith and is believed to be accurate at the date of issuance. Growth Technology Pty Ltd makes no representation of the accuracy or comprehensiveness of the information and to the full extent allowed by law excludes all liability for any loss or damage related to the supply or use of the information in this material safety data sheet. Pty Ltd is not in a position to warrant the accuracy of the data herein. The user is cautioned to make their own determinations as to the suitability of the information provided to the particular circumstances in which the product is used. Revision Date: 09/01/2023