CSCS COSHH 3

Question 1

Which of the nine GHS hazard symbols represents a corrosive substance?

Accepted Answer

A symbol showing damage to a surface and a hand

Answer

The GHS corrosive symbol (GHS05) shows a chemical causing visible damage to a metal surface and to human skin/hand. Corrosive substances on construction sites include strong acids, alkalis, and certain adhesives that can cause severe skin burns and eye damage.

Question 2

What is the purpose of COSHH risk phrases (H-statements)?

Accepted Answer

To standardise the description of the nature and severity of hazards posed by chemical substances

Answer

Hazard statements (H-statements) under the CLP Regulation provide standardised descriptions of the nature and severity of hazards. For example, H350 means 'May cause cancer'. They replaced the older R-phrases (risk phrases) and appear on labels and Safety Data Sheets.

Question 3

When carrying out a COSHH assessment on a construction site, what must be considered?

Accepted Answer

The identity of the hazardous substances, who may be exposed, how exposure occurs, and what controls are needed

Answer

A COSHH assessment must identify all hazardous substances present, determine who may be exposed and how (inhalation, skin contact, ingestion), evaluate the level of exposure, and determine what control measures are required. It must be reviewed regularly and whenever circumstances change.

Question 4

Which GHS symbol is used for substances that are harmful to the aquatic environment?

Accepted Answer

The dead fish and tree symbol

Answer

The GHS environmental hazard symbol (GHS09) shows a dead fish and tree, indicating the substance is toxic to aquatic life. On construction sites, substances such as certain paints, solvents, and diesel fuel carry this symbol and must be stored and disposed of to prevent water pollution.

Question 5

Under COSHH, for how long must employers keep health surveillance records?

Accepted Answer

40 years from the date of the last entry

Answer

Under COSHH Regulation 11, health surveillance records must be kept for at least 40 years from the date of the last entry. This lengthy retention period reflects the fact that many occupational diseases, such as mesothelioma, may not manifest for decades after exposure.

CSCS Green Card Practice Test

CSCS Green Card Practice Test

CSCS COSHH 3