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                          • Carbon Dioxide CO₂
                          • Dew Point (for dry conditions)
                          • DGA in Power Transformer Oil
                          • Methane CH₄
                          • Vaporized Hydrogen Peroxide H₂O₂
                          • Hydrogen H₂
                          • Moisture in Oil (MiO)
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                          • Indoor Environmental Monitoring
                          • Quick links:
                            • Catalogs
                            • Echo
                            • Indigo Family
                      • Weather and Environmental Solutions
                        • What are you measuring?
                          • Air quality
                          • Atmospheric profiling
                          • Cloud height
                          • Lightning
                          • Multi-weather
                          • Precipitation
                          • Pressure
                          • Road & runway surface condition
                          • Solar irradiation
                          • Temperature & humidity
                          • Visibility & present weather
                          • Wind
                        • What is your challenge?
                          • Air quality monitoring
                          • Airport weather
                          • Atmospheric research
                          • Automotive weather data
                          • Drone flight safety
                          • Helideck monitoring
                          • Lightning detection
                          • Maritime weather
                          • Observation network management
                          • Offshore environmental monitoring (EMS)
                          • Ship instrumentation
                          • Solar Resource Monitoring
                          • Winter road maintenance
                        • Explore products:
                          • Automatic weather stations
                          • Radiosondes & sounding systems
                          • Weather & environmental sensors
                          • Weather radars
                          • Wind lidars
                      • Xweather subscription services
                        • Software + Hardware
                          • Xweather Insight
                          • Wx Horizon
                          • RoadAI
                        • Data and Mapping
                          • Weather API
                          • Raster Maps
                          • MapsGL
                          • Air Quality
                          • Lightning
                          • Road Weather
                          • Renewable Energy
                    • Services
                      • Services
                        • Column1
                          • Calibration services
                          • Maintenance and upgrade services
                          • Project services
                        • Column2
                          • Remote and digital services
                          • Technical support
                          • Training services
                        • Product line services
                          • Continuous Monitoring System Services
                          • Services for liquid measurements
                          • Lifecycle agreements for weather applications
                          • Xweather subscription services
                    • Industries & Applications
                      • Industrial Measurement Solutions
                        • By industry
                          • Automotive
                          • Battery Manufacturing
                          • Bio-decontamination
                          • Biogas production
                          • Carbon Capture, Utilization & Storage
                          • Chemical industry solutions
                          • Cleanrooms
                          • Compressed Air
                          • Data Centers
                          • Food, Beverage & Agriculture
                          • Fuel Cells
                          • HVAC & Indoor Air
                          • Life Science & Pharmaceutical
                          • Power Industry Solutions
                          • Pulp, paper and wood
                          • Semiconductor
                          • Smart Drying
                          • ALL INDUSTRIES
                        • By measurement
                          • Carbon Dioxide
                          • Dissolved Gas in Oil (DGA)
                          • Humidity and Dew Point
                          • Hydrogen
                          • Liquid Concentration
                          • Methane
                          • Moisture in Oil (MiO)
                          • Pressure
                          • Temperature
                          • Vaporized Hydrogen Peroxide
                        • By technology
                          • CARBOCAP®
                          • DRYCAP®
                          • HUMICAP®
                          • PEROXCAP®
                          • BAROCAP®
                      • Weather and Environmental Solutions
                        • Column1
                          • Aviation
                          • Roads
                          • Defense meteorology
                          • Maritime
                          • Meteorology
                          • Renewable energy
                          • Energy, urban & industries
                      • Xweather subscription services
                        • Column1
                          • Agriculture
                          • Automotive
                          • Consumer
                          • Digital Marketing
                          • Energy + Utilities
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                          • Retail
                          • Smart Home
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                          • Blogs, cases and expert articles
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                        • Vaisala on social media
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                    • About us
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                        • Our story
                        • Strategy
                        • Values and purpose
                        • Innovation and R&D
                      • Management
                        • Board of Directors
                        • Leadership Team
                      • Sustainability
                        • Resource efficiency
                        • Energy Transition
                        • Safety and wellbeing
                        • Sustainable business practices
                        • Code of conduct
                        • Report a concern
                    • Investors
                      • Vaisala as an investment
                        • Why invest in Vaisala?
                        • Market information
                        • Acquisitions and divestments
                        • Risk management
                      • IR calendar
                      • Financial information
                        • Annual and quarterly figures
                        • Financial reporting structure
                        • Accounting principles for the consolidated financial statements
                        • Calculation of key figures
                        • Tax strategy
                      • Reports and presentations
                      • Corporate governance
                        • Governing bodies of Vaisala
                        • Corporate Governance Statement
                        • General Meetings
                        • Board of Directors
                        • Leadership Team
                        • Remuneration
                        • Insiders
                        • Compliance
                        • Controls
                        • Auditing and auditor's fees
                        • Articles of Association
                      • Shares and shareholders
                        • Share information
                        • Share tools
                        • Share monitor
                        • Shareholders
                      • Investor relations
                        • Disclosure Policy
                        • Subscribe to releases and publications
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                      • For media
                        • Press and stock exchange releases
                        • Blogs, cases and expert articles
                        • Media contacts
                    • Partners
                    • Careers
                      • Why us?
                        • Our planet needs you
                        • Here instruments meet intelligence
                        • We look after our people
                      • Students and graduates
                        • Giant Leap
                      • Open positions
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                    1. Home
                    3. Synthetic Fibers
                    • Polyamide (Nylon) Fiber Production 
                    • Polyurethane Elastic (Spandex) Fiber Production Process
                    • Fiberglass Production Process
                    • Production of Polyacrylonitrile (PAN) Precursor Fibers for Carbon Fibers
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