Overview
SIST ISO 16000-31:2015 establishes a standardized method for sampling and analyzing flame retardants and plasticizers based on organophosphorus compounds-specifically phosphoric acid esters-in indoor and test chamber air. Developed by SIST and based on ISO 16000-31:2014, this standard outlines procedures using gas chromatography/mass spectrometry (GC/MS) for both low-resolution and high-resolution mass spectrometry. The standard is instrumental for evaluating indoor air quality with respect to certain flame retardants and plasticizers but is not applicable for direct material analysis.
Key Topics
- Phosphoric Acid Esters in Indoor Air: Focuses on measuring key organophosphorus compounds commonly found indoors due to their use as flame retardants and plasticizers in building materials, furniture, and coatings.
- Sampling Methods: Provides detailed guidance for collecting indoor and test chamber air samples using glass fibre filters, polyurethane foam (PU foam), and equipment such as pumps, gas meters, hygrometers, and barometers.
- Sample Preparation: Outlines extraction and reduction steps for PU foam and filters, ensuring accuracy by minimizing contamination and loss of analytes.
- Analytical Techniques: Details the application of GC/MS, specifying requirements for both low-resolution and high-resolution analysis, including the use of internal standards for calibration.
- Calibration Procedures: Establishes processes for preparing internal standard solutions and calibration solutions to ensure data reliability in quantifying phosphoric acid esters.
- Compounds Monitored: Key analytes include tris(2-chloroethyl) phosphate (TCEP), tris(1-chloro-2-propyl) phosphate (TCPP), tricresyl phosphate (TCP), triphenyl phosphate (TPP), and others commonly detected in air and dust.
- Quality Assurance: Emphasizes strict quality control measures for sampling, analysis, and routine blank checks to avoid contamination or analytical errors.
Applications
- Indoor Air Quality Assessment: Supports the evaluation of exposure risks to phosphoric acid ester-based flame retardants and plasticizers in homes, offices, schools, and public buildings.
- Regulatory Compliance: Assists environmental consultants and laboratories in meeting regulatory or guideline requirements relating to organophosphorus compounds in indoor environments.
- Product and Material Emissions Testing: Facilitates emission rate studies from products or building materials by using test chamber analyses as specified in related ISO standards.
- Health Risk Assessment: Provides quantitative data critical for assessing potential health impacts due to long-term exposure to semi-volatile organic compounds (SVOCs) found in indoor air.
- Support for Building Renovation and Green Building Initiatives: Informs product selection and indoor air management strategies by identifying sources and concentrations of hazardous flame retardants.
Related Standards
- ISO 16000-1: General aspects of indoor air sampling strategy, forming the basis for planning robust measurement campaigns.
- ISO 16000-9: Methods for determining the emission of volatile organic compounds (VOCs) from building products using emission test chambers.
- ISO 16000-13: Sampling methodology for polychlorinated biphenyls (PCBs) and other similar semi-volatile compounds in indoor air.
- ISO 16000-6: Useful for the analysis of more volatile organic compounds that may complement measurements described in Part 31.
Practical Value
Implementing SIST ISO 16000-31:2015 helps organizations, laboratories, and building managers quantify the presence of potentially harmful flame retardants and plasticizers in indoor air, supporting public health, compliance, and environmental quality initiatives. The standard’s procedures ensure reproducibility and accuracy in data, supporting decisions on ventilation, material selection, and remediation measures to maintain safe indoor environments. By referencing related ISO 16000 standards, it creates a holistic approach to indoor air quality management, making it an essential tool for professionals focusing on air sampling, environmental health, and safety compliance.
Keywords: indoor air quality, organophosphorus compounds, phosphoric acid esters, flame retardants, plasticizers, gas chromatography, mass spectrometry, SVOCs, air sampling, emission test chamber, environmental health, ISO 16000-31, SIST.