Cult of Sea

Maritime Knowledge base

  • Home
  • Knowledge base
    • Bridge Equipment
    • Cargo Work
    • Deck
    • General
    • Gmdss
    • Maritime Law
    • Marpol
    • MLC 2006
    • Meteorology
    • Navigation
    • Safety
    • Security
    • Ship Construction
    • Ship Handling
    • Ship Stability
    • Shippie’s Escape
    • Surveys
    • Tankers
  • Colreg’s (ROR)
    • Index (Colreg’s)
    • Part A- General
      • Rule 1 – Application
      • Rule 2 – Responsibility
      • Rule 3 – General Definitions
    • Part B- Steering and Sailing
      • Section 1 (Rule 4 -10)
        • Rule 4 – Application
        • Rule 5 – Lookout
        • Rule 6 – Safe Speed
        • Rule 7 – Risk of collision
        • Rule 8 – Action to avoid collision
        • Rule 9 – Narrow Channels
        • Rule 10 – Traffic separation schemes
      • Section 2 (Rule 11 – 18)
        • Rule 11 – Application
        • Rule 12 – Sailing vessels
        • Rule13 – Overtaking
        • Rule 14 – Head on situation
        • Rule 15 – Crossing situation
        • Rule 16 – Action by give-way vessel
        • Rule 17 – Action by stand-on vessel
        • Rule 18 – Responsibilities between vessels
      • Section 3 (Rule 19)
        • Rule 19 – Conduct of vessels in restricted visibility
    • Part C- Lights and Shapes
      • Rule 20 – Application
      • Rule 21- Definitions
      • Rule 22 – Visibility of lights
      • Rule 23 – Power-driven vessels underway
      • Rule 24 – Towing and pushing
      • Rule 25 – Sailing vessels underway and vessels under oars
      • Rule 26 – Fishing vessels
      • Rule 27 – Vessels N.U.C or R.A.M
      • Rule 28 – Vessels constrained by their draught
      • Rule 29 – Pilot vessels
      • Rule 30 – Anchored vessels and vessels aground
      • Rule 31 – Seaplanes
    • Part D- Sound and Light Signals
      • Rule 32 – Definitions
      • Rule 33 – Equipment for sound signals
      • Rule 34 – Manoeuvring and warning signals
      • Rule 35 – Sound signals in restricted visibility
      • Rule 36 : Signals to attract attention
      • Rule 37 – Distress signals
    • Part E- Exemptions (Rule 38)
      • Rule 38 – Exemptions
    • Part F – Verification of compliance with the provisions of the Convention
      • Rule 39 – Definitions
      • Rule 40 – Application
      • Rule 41 – Verification of compliance
    • Annexes
      • Annex 1 – Positioning and technical details of lights and shapes
      • ANNEX II – Additional Signals for Fishing Vessels Fishing in Close Proximity
      • ANNEX III – Technical Details of Sound Signal Appliances
      • ANNEX IV – Distress Signals
  • Glossary
  • Contact
You are here: Home / glossary / Threshold limit value (TLV)

Threshold limit value (TLV)

Threshold limit value (TLV)

Created OnFebruary 7, 2018
byCult of Sea
Print
You are here:
  • Glossary
  • T
  • Threshold limit value (TLV)
< Back to Glossary Index

airborne concentrations of substances devised by the American Conference of Government Industrial Hygienists (ACGIH). Representative of conditions under which it is believed that nearly all workers may be exposed day after day with no adverse effects. There are three different types of TLV, TWA, STEL and C.

Note: TLVs are advisory exposure guidelines, not legal standards and are based on evidence from industrial experience and research studies.

Related:

  • Threshold Limit Value (TLV)
  • Permissible exposure limit
  • Dreadage or Dreading Clause
  • Arrived ship
  • Toxicity
  • Time weighted average (TWA)

By Cult of Sea

mariner-gps
Simple Colregs COS Ad

Join Our List

Subscribe to our mailing list and get interesting stuff and updates to your email inbox.

Powered with ♥ by Cult of Sea

instagram-button

What others are reading

Gas Tanker - Hazards & Definitions

Gas Tanker Basics – Definitions and Hazards

Refrigeration Principle, Cargo and Systems

Part E - Exemptions

Rule 38 – Exemptions

Part D - Sound and Light Signals

Rule 35 – Sound signals in restricted visibility

The Pivot Point

Iron fire

Pyrophoric Iron Fires

Anti Exposure Suit

Ship Anchor

Anchor Terminology used in Shipping

Part C Lights and Shapes

Rule 27 – Vessels N.U.C or R.A.M

stowaways

Stowaways – Who are they, What are Individual Duties?

Note of Protest vs Letter of Protest

Note of Protest vs Letter of Protest – Why, When and Differences between NOP & LOP

Vegetable, Palm and Soybean/Sunflower Oils – Carriage on Tankers

Cargo Conditioning, Reliquefaction – Gas Tankers

Biological Sewage Treatment Plant “BIOMASTER”

General Offence Against Discipline – Merchant Shipping Act 1958


About Us | Terms | Contact Us | Sitemap | Marine Glossary (BETA)

Cult of Sea®™ · Made with ❤ by a small band of sailors