What Data for This Category Looks Like
Chemical raw material investment research data mainly comes from public standard documents of industry associations, internal enterprise quality inspection reports, customs import and export declarations, MSDS safety technical specifications, and spot price databases. Data update cycles vary: spot prices are updated daily, industry compliance standards are updated quarterly or annually, and enterprise quality inspection reports are updated with production batches. A single document usually includes fields such as CAS registry number, molecular formula, molecular weight, purity specification, packaging specification, storage conditions, and import and export tariff codes. Fields are accompanied by professional units such as g/cm³, ℃, MPa, etc.
Constraints on the Retrieval and Recall Workflow
Dispersed data sources and large update frequency differences require the retrieval system to support multi-source aggregation and incremental updates. Full synchronization causes resource waste and data expiration, which this setup avoids. Fields include professional identifiers and units. The retrieval system must support field-level precise matching and automatic unit conversion. Inconsistent units cause matching failures, which this setup prevents. Parameters in a single document have strong correlations. Segmented retrieval must retain parameter context. Overly short segments break parameter logic, which this setup avoids. Unique identifiers such as CAS numbers require prioritizing recall ranking by this field. This improves retrieval accuracy.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
Recall Count | Top 10–15 results | Chemical raw material single documents have high parameter density. Too many recall results will cause context overload, while too few will miss valid matching items |
Similarity Threshold | 0.75–0.85 | Precise matching is required for chemical raw material parameter matching. A threshold that is too low will mix in irrelevant raw material data, while a threshold that is too high will filter out valid matching results |
Segment Length | 800–1200 characters | A single chemical raw material parameter document contains multiple sets of related parameters. Too long a segment will lose field context, while too short a segment will destroy parameter association logic |
Incremental Update Trigger Interval | 2:00 AM daily | Spot price data is updated daily, and industry standard documents are updated quarterly. Incremental updates can adapt to synchronization requirements for multi-frequency data sources |
Field Weight Configuration | CAS Number: 10, Purity: 8, Molecular Formula: 6 | The unique identifier of chemical raw materials is the CAS number, which must be matched first, followed by core parameters such as purity and molecular formula |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Chemical raw material documents contain a large number of tabular parameters. The default parsing duration is insufficient, so it needs to be extended to complete full parsing |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing.
Three Common Misconfigurations
- Scenario: Deploy version 4.8.9 via Docker Compose. After uploading a chemical raw material quality inspection report, creating a new knowledge base fails and returns a 500 status code. Cause: The local quality inspection report directory is not mounted to the FastGPT container’s file storage path. The system cannot read the uploaded files.
- Scenario: Search for "density of ethylene glycol". Returned results include entries with both g/cm³ and kg/m³ units, without unified matching. Cause: The
automatic unit conversion switchis not enabled. The system does not adapt to multi-unit retrieval requirements for chemical raw material parameters. - Scenario: Set
Recall Countto 20. Search results contain a large number of duplicate entries for the same chemical raw material. Cause: Nofield deduplication ruleis configured. Recall results are not deduplicated by CAS number, leading to repeated returns of different parameter documents for the same raw material.
How to Verify Proper Configuration
- Upload one standard chemical raw material MSDS document. Check the parsed segmented content to confirm that parameter associations are not broken.
- Enter a precise query containing a CAS number, purity, and unit. Verify that the matching priority of recall results matches the preset field weights.
- Trigger an incremental update task. Check the update log to confirm that only newly added or modified data source files are synchronized.
- Simulate a query request for multi-unit parameters. Confirm that retrieval results automatically complete unit conversion and display uniformly.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.