Filter blocks, slabs and plates of paper pulp

HS v2022 Code: 4812

Chapter	Heading	Sub-heading
48	12	n/a

Code	4812
Version	HS v2022
Hierarchy Level	4
Datasource	WCO
Chapter	48

Ancestor Codes: Paper and paperboard; articles of paper pulp, of paper or paperboard

This Code: Filter blocks, slabs and plates of paper pulp

Child Codes: Paper pulp; filter blocks, slabs and plates of paper pulp

Sibling Codes (Nearest 5): Carbon paper, self copy paper, and other copying or transfer papers (including coated or impregnated paper for duplicator stencils or offset plates), whether or not printed, in rolls or sheets; Paper and paperboard, coated one or both sides with kaolin (china clay) or inorganic substances, with binder or not, no other coating, surface coloured or not, surface decorated or printed, in rolls or rectangular (including square) sheets, of any size; Paper, paperboard, cellulose wadding and webs of cellulose fibres, coated, impregnated, covered, surface-coloured, decorated or printed, rolls or sheets, other than goods of heading no. 4803, 4809, or 4810; Cigarette paper, whether or not cut to size or in the form of booklets or tubes; Wallpaper and similar wall coverings; window transparencies of paper

About filter blocks, slabs and plates of paper pulp

HS code 4812 covers the production of filter blocks, slabs, and plates made from paper pulp. These products are essential components in a wide range of filtration systems, playing a crucial role in the purification and separation processes across various industries. As a key part of the broader pulp and paper industry, the manufacture of these filter materials contributes significantly to the global economy, enabling efficient and effective filtration solutions for a diverse range of applications.

Production process

The production of filter blocks, slabs, and plates from paper pulp typically involves a multi-step process. First, the raw paper pulp is prepared, often through a combination of mechanical and chemical processes to achieve the desired fiber composition and consistency. The pulp is then formed into the desired shapes and sizes, either through molding, pressing, or other specialized techniques. Finally, the filter materials may undergo additional processing, such as drying, cutting, or surface treatment, to meet the specific requirements of the intended application.

Production inputs

The main inputs required for the production of HS code 4812 products include high-quality paper pulp, which can be derived from various cellulosic sources such as wood, agricultural waste, or recycled paper. Additionally, specialized machinery and equipment, such as molding machines, presses, and drying systems, are essential for the efficient and consistent manufacture of these filter materials. Energy, water, and other ancillary materials may also be required, depending on the specific production processes and quality standards employed.

Production outputs

The primary outputs of HS code 4812 are the filter blocks, slabs, and plates made from paper pulp. These products are widely used in a variety of filtration systems, including 8421 Centrifuges, filtering or purifying machinery and apparatus, for liquids or gases, 8536 Electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits, and 9018 Instruments and appliances used in medical, surgical, dental or veterinary sciences. The filter materials produced under this code are essential for ensuring the purity, efficiency, and reliability of these downstream applications.

Family tree for filter blocks, slabs and plates of paper pulp

    graph LR
    A["<a href='/classifications/hs/v2022/48'>48: Paper and paperboard; articles of paper pulp, of paper or paperboard</a>"]
A --> B["<a href='/classifications/hs/v2022/4812'>4812: Filter blocks, slabs and plates of paper pulp</a>"]

    A --> C["<a href='/classifications/hs/v2022/4801'>4801: Newsprint, in rolls or sheets</a>"]
A --> D["<a href='/classifications/hs/v2022/4802'>4802: Uncoated paper and paperboard, used for writing, printing or other graphics, non perforated punch-cards and punch tape paper, in rolls or rectangular sheets, of any size, other than paper of heading 4801 or 4803; hand-made paper and paperboard</a>"]
A --> E["<a href='/classifications/hs/v2022/4803'>4803: Tissue, towel, napkin stock or similar; for household or sanitary uses, cellulose wadding, webs of cellulose fibres, in rolls over 36cm in width or rectangular sheets with one side exceeding 36cm when unfolded</a>"]
A --> F["<a href='/classifications/hs/v2022/4804'>4804: Uncoated kraft paper and paperboard, in rolls or sheets, other than that of heading no. 4802 or 4803</a>"]
A --> G["<a href='/classifications/hs/v2022/4805'>4805: Uncoated paper and paperboard n.e.c., in rolls or sheets</a>"]
A --> H["<a href='/classifications/hs/v2022/4806'>4806: Vegetable parchment, greaseproof papers, tracing papers, glassine and other glazed transparent or translucent papers, in rolls or sheets</a>"]
A --> I["<a href='/classifications/hs/v2022/4807'>4807: Composite paper and paperboard, (made by sticking layers together with an adhesive), not surface-coated or impregnated, whether or not internally reinforced, in rolls or sheets</a>"]
A --> J["<a href='/classifications/hs/v2022/4808'>4808: Paper and paperboard, corrugated (with or without glued flat surface sheets), creped, crinkled, embossed or perforated, in rolls or sheets other than paper of the kind described in heading 4803</a>"]
A --> K["<a href='/classifications/hs/v2022/4809'>4809: Carbon paper, self copy paper, and other copying or transfer papers (including coated or impregnated paper for duplicator stencils or offset plates), whether or not printed, in rolls or sheets</a>"]
A --> L["<a href='/classifications/hs/v2022/4810'>4810: Paper and paperboard, coated one or both sides with kaolin (china clay) or inorganic substances, with binder or not, no other coating, surface coloured or not, surface decorated or printed, in rolls or rectangular (including square) sheets, of any size</a>"]
A --> M["<a href='/classifications/hs/v2022/4811'>4811: Paper, paperboard, cellulose wadding and webs of cellulose fibres, coated, impregnated, covered, surface-coloured, decorated or printed, rolls or sheets, other than goods of heading no. 4803, 4809, or 4810</a>"]
A --> N["<a href='/classifications/hs/v2022/4813'>4813: Cigarette paper, whether or not cut to size or in the form of booklets or tubes</a>"]
A --> O["<a href='/classifications/hs/v2022/4814'>4814: Wallpaper and similar wall coverings; window transparencies of paper</a>"]
A --> P["<a href='/classifications/hs/v2022/4816'>4816: Carbon paper, self-copy paper and other copying or transfer papers, (other than those of heading no. 4809), duplicator stencils and offset plates, of paper whether or not put up in boxes</a>"]
A --> Q["<a href='/classifications/hs/v2022/4817'>4817: Envelopes, letter cards, plain postcards and correspondence cards, of paper, paperboard; boxes, pouches, wallets and writing compendiums, of paper or paperboard containing assortment of paper stationery</a>"]
A --> R["<a href='/classifications/hs/v2022/4818'>4818: Toilet paper, width 36cm or less or cut to size/shape; handkerchiefs, tissues, towels, serviettes, bed sheets and similar household or hospital articles, apparel and clothing accessories of paper pulp, paper, cellulose wadding or webs of cellulose fibres</a>"]
A --> S["<a href='/classifications/hs/v2022/4819'>4819: Cartons, boxes, cases, bags and the like, of paper, paperboard, cellulose wadding or fibres; box files, letter trays and the like, of paper or paperboard, of a kind used in offices, shops or the like</a>"]
A --> T["<a href='/classifications/hs/v2022/4820'>4820: Registers, account books, diaries and similar; albums for samples or collections, of paper or paperboard</a>"]
A --> U["<a href='/classifications/hs/v2022/4821'>4821: Paper or paperboard labels of all kinds, whether or not printed</a>"]
A --> V["<a href='/classifications/hs/v2022/4822'>4822: Bobbins, spools, cops and similar supports of paper pulp, paper or paperboard (whether or not perforated or hardened)</a>"]
A --> W["<a href='/classifications/hs/v2022/4823'>4823: Paper, paperboard, cellulose wadding and webs of cellulose fibres; cut to size or shape, articles of paper pulp, paper and paper-board, cellulose wadding or webs of cellulose fibres, n.e.c. in chapter 48</a>"]

    B --> X["<a href='/classifications/hs/v2022/481200'>481200: Paper pulp; filter blocks, slabs and plates of paper pulp</a>"]


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    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level4
class V level4
class W level4
class X level6

  class B highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class B highlight