7 Warning Signs of a Poorly Written Safety Data Sheet (SDS)

Not all Safety Data Sheets (SDSs) are created equal.

Inaccurate or poorly written SDSs not only put your business at risk of regulatory non-compliance but also jeopardize worker safety and product credibility. Low-cost providers and generic SDS automation software often miss critical details, leading to GHS violations and avoidable liability.

In this article, we break down the top 7red flags that indicate an SDS has been improperly authored—and how to avoid them.

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Why SDS Accuracy Matters

The Globally Harmonized System (GHS) provides a standardized format for communicating chemical hazards. When an SDS fails to meet GHS or WHMIS standards, the consequences can include:

• Regulatory fines or audits
• Legal liability
• Confusion or misuse of products on worksites
• Reputational damage

Tip: Always verify your SDS author’s qualifications and ensure their work is backed by proven regulatory expertise.

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Top 7 Signs of a Poorly Written SDS

1. Inexperienced or Untrained SDS Author

SDS authoring is a technical discipline. Authors should have formal training in toxicology, chemistry, and regulatory compliance.

Quantum SDS uses Registered SDS Authors—recognized as industry leaders in compliant SDS creation.

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2. SDS Structure Doesn’t Follow GHS Standards

A compliant SDS must include:

• 16 clearly defined sections
• Accurate section titles
• Consistent formatting
• Logical flow of hazard information

Many legacy WHMIS 1988 SDSs or DIY tools fail to meet these updated structural expectations under GHS.

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3. Inaccurate Hazard Classifications or Symbols

Incorrect hazard classification or mismatched pictograms is a serious red flag.
Misclassifying a substance as non-toxic, for example, can expose workers and employers to dangerous risks—and trigger non-compliance penalties.

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4. Missing or Incomplete Precautionary Statements

GHS requires standardized precautionary statements for each hazard class. These statements provide guidance on:

• Safe handling
• First-aid measures
• Storage and disposal

Excluding them entirely is a violation of GHS rules.

Quantum SDS’s internal GHS reference tool ensures the correct precautionary language is always included.

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5. No or Misplaced Signal Word

Every hazardous product must include a SignalWord—either “Danger” or “Warning”—as specified by GHS and WHMIS regulations.

Improper placement or omission of the signal word compromises clarity and violates labelling rules.

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6. No Contact Information for the SDS Author

A legitimate SDS should include:

• Authoring organization’s name
• Phone number or email
• Date of issue or last revision

This info is vital for traceability and maybe legally required if the SDS is ever submitted as evidence.

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7. Simply Rebranding an Old SDS

Reissuing an SDS with a new title and issue date—but no structural or content updates—is deceptive and non-compliant.

Your SDS must reflect current regulatory requirements, not just have a recent date.

What to Look for in a Quality SDS

Before accepting an SDS, make sure it

• Was written or reviewed by a qualified, registered author
• Contains 16 GHS-compliant sections
• Uses correct hazard and precautionary statements
• Includes author contact info and revision history
• Is updated to reflect WHMIS (Canada) or HazCom (U.S.) requirements

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Trust Quantum SDS for Professional SDS Authoring

With 30+ years of experience, QuantumSDS’s team of regulatory experts and Registered SDS Authors ensure your SDSs are:

• Fully compliant with GHS, WHMIS, HazCom, REACH, and more
• Professionally structured and formatted
• Available in 43 languages
• Backed by real-time regulatory updates

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Get SDS Authoring Help Today

Avoid the risks of a poorly written SDS. Contact the Quantum SDS team for professional authoring services or software solutions tailored to your business.