Resin identification code

Resin identification code - set of symbols appearing on plastic products that identify the plastic resin out of which the product is made. Article “Resin identification code” in English Wikipedia has 34.6 points for quality (as of July 1, 2026). The article contains 19 references and 7 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 6.1 points.

This article has the best quality in Chinese Wikipedia. However, this article is the most popular in English version.

Since the creation of article “Resin identification code”, its content was written by 203 registered users of English Wikipedia and edited by 365 registered Wikipedia users in all languages.

The article is cited 140 times in English Wikipedia and cited 415 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #621 in August 2002
• Global: #1575 in August 2002

The highest popularity rank from 2008:

• Local (English): #28982 in April 2008
• Global: #32557 in November 2015

There are 15 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Chinese (zh) 塑膠分類標誌		53.3344
2	Spanish (es) Código identificador de resina		38.644
3	English (en) Resin identification code		34.5658
4	Armenian (hy) Խեժի նույնականացման կոդ		27.3488
5	Serbian (sr) Kodovi za identifikaciju plastičnih masa		21.9533
6	Vietnamese (vi) Mã số nhận diện nhựa cây		19.868
7	Japanese (ja) 樹脂識別コード		17.4443
8	Romanian (ro) Cod de identificare a rășinii		14.911
9	Ukrainian (uk) Код ідентифікації смоли		14.2816
10	French (fr) Code d'identification des résines		11.4295

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Resin identification code" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Resin identification code		2 942 995
2	Chinese (zh) 塑膠分類標誌		1 810 153
3	French (fr) Code d'identification des résines		321 183
4	Japanese (ja) 樹脂識別コード		77 090
5	Swedish (sv) Plastklassningskod		63 543
6	Spanish (es) Código identificador de resina		26 194
7	Arabic (ar) قائمة رموز تمييز الراتنج		10 626
8	Catalan (ca) Codi d'identificació de resines		10 126
9	Ukrainian (uk) Код ідентифікації смоли		5 880
10	Serbian (sr) Kodovi za identifikaciju plastičnih masa		5 766

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Resin identification code" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Resin identification code		2 830
2	Chinese (zh) 塑膠分類標誌		1 446
3	Japanese (ja) 樹脂識別コード		287
4	French (fr) Code d'identification des résines		258
5	Spanish (es) Código identificador de resina		172
6	Ukrainian (uk) Код ідентифікації смоли		73
7	Serbian (sr) Kodovi za identifikaciju plastičnih masa		59
8	Catalan (ca) Codi d'identificació de resines		38
9	Swedish (sv) Plastklassningskod		26
10	Korean (ko) 수지 식별 코드		18

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Resin identification code" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Resin identification code		203
2	French (fr) Code d'identification des résines		59
3	Chinese (zh) 塑膠分類標誌		37
4	Catalan (ca) Codi d'identificació de resines		11
5	Swedish (sv) Plastklassningskod		10
6	Spanish (es) Código identificador de resina		9
7	Arabic (ar) قائمة رموز تمييز الراتنج		7
8	Japanese (ja) 樹脂識別コード		6
9	Ukrainian (uk) Код ідентифікації смоли		6
10	Vietnamese (vi) Mã số nhận diện nhựa cây		6

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Resin identification code" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) قائمة رموز تمييز الراتنج		1
2	Romanian (ro) Cod de identificare a rășinii		1
3	Swedish (sv) Plastklassningskod		1
4	Catalan (ca) Codi d'identificació de resines		0
5	English (en) Resin identification code		0
6	Spanish (es) Código identificador de resina		0
7	French (fr) Code d'identification des résines		0
8	Armenian (hy) Խեժի նույնականացման կոդ		0
9	Japanese (ja) 樹脂識別コード		0
10	Korean (ko) 수지 식별 코드		0

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The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Resin identification code" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Resin identification code		140
2	Chinese (zh) 塑膠分類標誌		87
3	French (fr) Code d'identification des résines		47
4	Arabic (ar) قائمة رموز تمييز الراتنج		40
5	Japanese (ja) 樹脂識別コード		37
6	Ukrainian (uk) Код ідентифікації смоли		32
7	Korean (ko) 수지 식별 코드		10
8	Vietnamese (vi) Mã số nhận diện nhựa cây		6
9	Catalan (ca) Codi d'identificació de resines		5
10	Spanish (es) Código identificador de resina		4

More...

#	Language	Value
ar	Arabic قائمة رموز تمييز الراتنج
ca	Catalan Codi d'identificació de resines
en	English Resin identification code
es	Spanish Código identificador de resina
fr	French Code d'identification des résines
hy	Armenian Խեժի նույնականացման կոդ
ja	Japanese 樹脂識別コード
ko	Korean 수지 식별 코드
ro	Romanian Cod de identificare a rășinii
sh	Serbo-Croatian Kodovi za identifikaciju plastičnih masa
sr	Serbian Kodovi za identifikaciju plastičnih masa
sv	Swedish Plastklassningskod
uk	Ukrainian Код ідентифікації смоли
vi	Vietnamese Mã số nhận diện nhựa cây
zh	Chinese 塑膠分類標誌

Best Rank

English: #28982 04.2008

Global: #32557 11.2015

Best Rank

English: #621 08.2002

Global: #1575 08.2002

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information