Customer Support: +44 (0)203 327 3140

Login to i2i Subscription Intertek.com
  • Shopping Cart
    There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Go to AMERICAS site
Dismiss alert
Celebrate World Standards Day. Save 10% with code WSD2026 until 31 Oct. Save now
Please enter a keyword to search
Advanced search
Home
Publishers
API
API 505:2018

API 505:2018

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Add to Watchlist

API Recommended Practice 505 Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1,and Zone 2

Available format(s)

PDF

Language(s)

English

Published date

29-08-2018

Publisher

American Petroleum Institute

Superseded date

15-01-2025

Superseded by

API RP 505:2025

Add to Watchlist
£212.87
Excluding VAT
Summarise this standard

The purpose of this recommended practice (RP) is to provide guidelines for classifying locations Class I,
Zone 0, Zone 1, and Zone 2 at petroleum facilities for the selection and installation of electrical equipment.

DocumentType
Standard
Pages
177
ProductNote
This product is unavailable in Cuba, Iran, North Korea, Syria THIS STANDARD REFERS TO ABS 2, ABS 6,CSA Plus 2203
PublisherName
American Petroleum Institute
Status
Superseded
SupersededBy
Supersedes

Frequently Asked Questions

API 505 provides methods for classifying petroleum facility locations where flammable gases or vapours may be present. In practice it is applied by electrical and process safety engineers classifying hazardous locations in petroleum facilities.

No — API 505 is a United States standard published by American Petroleum Institute (API), with its listed region as United States.

API 505 is American Petroleum Institute (API)'s standard for hazardous location classification, while AS/NZS 60079.14 covers explosive atmospheres (Australia and New Zealand). API 505 provides methods for classifying petroleum facility locations where flammable gases or vapours may be present. AS/NZS 60079.14 covers equipment, area classification, installation, inspection or protection methods for electrical systems in explosive atmospheres.

API 505 is used by electrical and process safety engineers classifying hazardous locations in petroleum facilities. It is a United States standard published by American Petroleum Institute (API).

API 505 provides methods for classifying petroleum facility locations where flammable gases or vapours may be present. It is a United States standard published by American Petroleum Institute (API).
⚠

A newer version of this standard is available.

View Current Edition
£212.87
Excluding VAT
GBP
AUD
CAD
CHF
CNY
DKK
EUR
HKD
IDR
INR
JPY
KRW
MXN
NOK
NZD
SEK
SGD
USD
ZAR
PDF - English - DRM
PDF - English - DRM
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100