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The compliance reference.
Plain-language definitions of the regulations, standards and document structures behind Malaysian chemical compliance - the terms we work in, every day.
01 - Standards & Regulations
What governs compliance.
CLASS 2013 Malaysia's Occupational Safety and Health (Classification, Labelling and Safety Data Sheet of Hazardous Chemicals) Regulations 2013 - the national legal basis for chemical hazard communication, enforced by DOSH.
UN GHS The Globally Harmonized System of Classification and Labelling of Chemicals, developed by the United Nations. CLASS 2013 adopts its classification criteria, pictograms and SDS format.
DOSH The Department of Occupational Safety and Health - the Malaysian authority that enforces CLASS 2013 and inspects chemical compliance.
OSHA 1994 The Occupational Safety and Health Act 1994 - the parent legislation under which CLASS 2013 sits.
ICOP The Industry Code of Practice on Chemicals Classification and Hazard Communication - DOSH's practical guidance for applying CLASS 2013.
02 - SDS Structure
The 16 sections.
Every Safety Data Sheet follows the same 16-section GHS structure, in this order.
1 Identification
2 Hazard(s) identification
3 Composition / information on ingredients
4 First-aid measures
5 Fire-fighting measures
6 Accidental release measures
7 Handling and storage
8 Exposure controls / personal protection
9 Physical and chemical properties
10 Stability and reactivity
11 Toxicological information
12 Ecological information
13 Disposal considerations
14 Transport information
15 Regulatory information
16 Other information
03 - Glossary
Terms, defined.
The working vocabulary of chemical compliance, in plain language.
01
Safety Data Sheet (SDS) A 16-section document that communicates a chemical's hazards, safe-handling and emergency measures. Required for every hazardous chemical placed on the Malaysian market under CLASS 2013.
02
Hazard pictograms Nine standardised GHS symbols in red-bordered diamonds that show the type of hazard at a glance - flame, corrosion, skull and crossbones, environment and others.
03
Signal words "Danger" for the most severe hazards (Categories 1–2) and "Warning" for less severe ones (Category 3 and above). Only one signal word appears on a label.
04
H & P statements Standardised phrases: H-statements describe the hazard (e.g. H319 - causes serious eye irritation); P-statements give precautionary advice (e.g. P305 - IF IN EYES).
05
CAS number A unique numeric identifier assigned by the Chemical Abstracts Service to a specific chemical substance, used to name ingredients unambiguously.
06
Substance vs mixture A substance is a single chemical; a mixture is a blend of two or more substances. Classification rules differ, with mixtures assessed via cut-off values and bridging principles.
07
Cut-off & bridging The methods used to classify mixtures: cut-off values ignore ingredients below a set concentration, while bridging principles extend a known similar mixture's classification to a new one.
08
Classification The process of assigning a chemical to GHS hazard classes and categories based on its intrinsic properties - the foundation of every SDS and label.
09
Hazard communication The system of labels, SDS and training that tells workers and users about chemical hazards - the core purpose of CLASS 2013.
06 - Next Step
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