carbon monoxide

Selective evidence for CO

Records the identification method, its limitations and competing explanations for the observed signal.

1. What evidence identifies CO rather than CO2, nitrogen or an interfering constituent? definition
2. Which analytical method and reference or calibration evidence support that identification? provenance

Occurrence boundary

Identifies whether the subject is pure CO, a CO component or dissolved CO, and links the surrounding material.

1. Is the subject free CO, dissolved CO or a chemically bound species requiring a neighbouring model? boundary
2. Which sample, stream or material contains the CO, and what establishes that association? provenance

Conditioned CO amount

Associates CO amount and phase with the pressure, temperature and boundary to which they apply.

1. What amount of CO is present within the stated container, sample or process boundary? measurement
2. What phase, temperature and absolute pressure apply, and are reported gas volumes actual or referenced? measurement

Comparable CO concentration

Preserves concentration basis and the mixture information needed for interpretation.

1. What is the CO concentration, including units, wet or dry basis and conditions required for conversion? measurement
2. Which co-constituents or impurities materially affect the proposed measurement, handling or use? boundary

Bounded detector observation

Captures sampling location, response characteristics and limitations affecting a CO reading or nondetection.

1. Where and when was CO sampled, over what averaging interval, and with what detection limit and uncertainty? measurement
2. Could sensor interference, saturation, response delay or sampling placement limit this observation? boundary

Exposure evidence and action basis

Separates measured environmental CO, inferred exposure and biological evidence, and identifies the applicable decision rule.

1. What concentration history, duration and occupancy evidence support the exposure assessment, and what remains unknown? measurement
2. Which authoritative procedure or exposure criterion applies to this setting and averaging interval? action

Attributed CO input

Records evidence for combustion-related formation, other chemical generation or leakage without assuming a source from detection alone.

1. Which process or inventory could supply this CO, and what evidence supports the attribution? provenance
2. Is CO input continuing, intermittent or ended, and what rate or temporal evidence establishes that state? measurement

Accounted CO fate

Tracks whether CO leaves a boundary, changes concentration through mixing or is converted into other substances.

1. Does the observed decrease reflect transport, dilution, sampling effects or evidenced chemical consumption? boundary
2. For a proposed CO-consuming reaction, what conditions, products and material balance establish the expected outcome? action

Supported CO handling

Identifies the evidence required to support storage or transfer under the actual composition, pressure and temperature.

1. What documented compatibility and operating limits apply to the equipment contacting this CO-bearing material? provenance
2. Which containment, leak-monitoring and release-control requirements must be satisfied before the proposed transfer or use? action

Contextual CO combustion assessment

Keeps combustion assessment separate from exposure assessment and ties it to an evidenced mixture and operating envelope.

1. What CO and oxidant concentrations, temperature, pressure and ignition conditions characterize the proposed operation? measurement
2. Which validated combustion data and operating procedure support allowing, restricting or stopping that operation? action

Kinds and varieties

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these kinds and varieties hold for the sense of carbon monoxide this model covers, and on what evidence? provenance

Identifiers and schemes

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these identifiers and schemes hold for the sense of carbon monoxide this model covers, and on what evidence? provenance

Standards and regulation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these standards and regulation hold for the sense of carbon monoxide this model covers, and on what evidence? provenance

Real-world use

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these real-world use hold for the sense of carbon monoxide this model covers, and on what evidence? provenance

Typical measurements

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these typical measurements hold for the sense of carbon monoxide this model covers, and on what evidence? provenance

Failure modes and hazards

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these failure modes and hazards hold for the sense of carbon monoxide this model covers, and on what evidence? provenance

Regional variation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these regional variation hold for the sense of carbon monoxide this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of carbon monoxide this model covers, and on what evidence? provenance