Coconut Shell Charcoal Specifications – Fixed Carbon, Ash, Moisture & Quality Testing

IEC | INDONESIA EXPORT CENTER

COCONUT SHELL CHARCOAL FROM INDONESIA

Technical Specifications for Industrial Buyers and Quality Control Teams

Understanding coconut shell charcoal specifications is essential when evaluating raw charcoal for industrial applications, activated carbon production, fuel use, and briquette manufacturing.

Indonesia Export Center (IEC) facilitates international B2B sourcing inquiries for coconut shell charcoal from Indonesia.

IEC’s supplied product specifications cover 100% coconut shell charcoal, including key quality parameters such as fixed carbon, ash content, moisture, volatile matter, calorific value, dust, and foreign matter.

For industrial buyers, a technical specification sheet is the starting point. Final product acceptance should also consider the analytical methods, sample preparation, testing basis, laboratory results, and agreed contractual limits.

This guide explains how to interpret coconut shell charcoal specifications and prepare quality requirements for international purchasing.

Request Technical Specifications & Quotation:
https://wa.me/628133302277

Coconut Shell Charcoal Technical Specifications

IEC’s supplied raw coconut shell charcoal specifications are listed below.

Parameter	Specification
HS Code	44029010
Raw Material	100% Coconut Shell
Moisture	Max 10%
Ash Content	Max 2–3%
Volatile Matter	Max 15%
Fixed Carbon	Min 75–80%
Calorific Value	Min 7,000 kcal/kg
Foreign Matter	Max 0.5–1%
Dust	Max 3%
Size	Natural Lump / Granular / 3×6 Mesh / 4×8 Mesh / Custom
Packing	PP Bag / Woven Bag

Important technical clarification: The ranges shown for ash content, fixed carbon, and foreign matter represent possible grade-dependent specification limits, not single fixed acceptance criteria.

For example, “Max 2–3%” ash does not establish whether a particular order must meet 2% or 3%. The exact limit must be agreed upon before purchase.

The supplied HS code is a product reference and should be verified against applicable customs requirements.

What Are the Main Quality Parameters of Coconut Shell Charcoal?

Industrial quality control teams typically evaluate coconut shell charcoal using several analytical and physical parameters.

The most important include:

Fixed carbon
Ash content
Volatile matter
Moisture
Calorific value
Foreign matter
Dust
Particle size distribution

These parameters provide information about material composition, handling characteristics, and potential suitability for a particular application.

No single parameter is sufficient to determine overall product suitability.

Fixed Carbon in Coconut Shell Charcoal

IEC Specification: Min 75–80%

Fixed carbon is an important indicator of the carbon-rich solid fraction remaining after the determination of moisture, volatile matter, and ash under an agreed proximate analysis method.

Why Fixed Carbon Matters

Fixed carbon is commonly considered when evaluating charcoal for:

Activated carbon manufacturing feedstock
Industrial fuel applications
Briquette manufacturing
Other carbon-based industrial processes

How Fixed Carbon Is Determined

In conventional proximate analysis, fixed carbon is often calculated by difference:

Fixed Carbon (%) = 100 − Moisture (%) − Ash (%) − Volatile Matter (%)

This calculation is valid only when all values are expressed on the same analytical basis.

Example Calculation

For an illustrative sample reported on the same basis:

Moisture: 8%
Ash: 2%
Volatile matter: 12%

Fixed Carbon = 100 − 8 − 2 − 12 = 78%

This is an arithmetic example, not an actual IEC laboratory result.

Fixed Carbon Testing Considerations

Buyers should confirm:

Analytical method
Reporting basis
Sample preparation
Test laboratory
Repeatability requirements
Minimum acceptance limit

Important Grade Clarification

IEC’s supplied fixed carbon specification is minimum 75–80%.

The exact minimum, such as 75% or 80%, must be confirmed for the selected grade.

Ash Content in Coconut Shell Charcoal

IEC Specification: Max 2–3%

Ash represents the inorganic residue remaining after a sample is subjected to an appropriate ashing procedure.

Why Ash Content Matters

Ash content may influence:

Feedstock suitability
Industrial process requirements
Residue generation
Fuel handling
Product selection

For activated carbon manufacturers, ash can be one consideration when evaluating raw charcoal feedstock.

However, ash content alone does not determine activation performance.

How Ash Content Is Tested

Laboratories determine ash content using a specified test method involving controlled heating and measurement of the remaining residue.

The test temperature, duration, sample preparation, and reporting basis should be defined.

Grade-Dependent Ash Limits

IEC’s listed ash content is maximum 2–3%.

The buyer and seller should agree on one exact contractual maximum for the selected grade.

Questions for Quality Control Teams

Is ash reported on a dry basis?
Which testing method is used?
What is the maximum contractual limit?
Is independent testing required?
How will nonconforming results be handled?

Volatile Matter in Coconut Shell Charcoal

IEC Specification: Max 15%

Volatile matter refers to material released from charcoal during a defined heating procedure, excluding moisture as specified by the applicable method.

Why Volatile Matter Matters

Volatile matter may be relevant to:

Carbonization characteristics
Fuel behavior
Feedstock evaluation
Briquette manufacturing requirements

Volatile Matter Testing

Results depend on the analytical method, heating conditions, sample preparation, and reporting basis.

Important Procurement Consideration

A maximum volatile matter value should be evaluated alongside fixed carbon, ash, and moisture.

These parameters are interrelated in proximate analysis.

Buyers should avoid comparing laboratory results reported on different analytical bases without appropriate conversion.

Moisture Content in Coconut Shell Charcoal

IEC Specification: Max 10%

Moisture represents the water content measured under the applicable analytical procedure.

Why Moisture Matters

Moisture may affect:

Material handling
Storage conditions
Net dry material content
Processing requirements
Fuel performance
Commercial quality assessment

Moisture Testing

Buyers should confirm the laboratory method and whether the result refers to the sample as received.

Moisture and Dry Material

For illustration, a 1,000 kg charcoal lot with 10% moisture contains approximately:

100 kg water
900 kg non-water material

This is a simplified mass-balance example, not a shipment measurement.

Moisture Acceptance

The contract should specify:

Maximum moisture
Sampling point
Test method
Testing responsibility
Procedure for results exceeding the limit

Calorific Value of Coconut Shell Charcoal

IEC Specification: Min 7,000 kcal/kg

Calorific value measures the energy released during combustion under defined testing conditions.

Why Calorific Value Matters

It may be relevant for:

Industrial fuel evaluation
Thermal process planning
Fuel purchasing comparisons

Gross vs. Net Calorific Value

Buyers should confirm whether the reported value is gross or net calorific value and the moisture basis used.

These distinctions can affect comparability.

Laboratory Verification

The reported calorific value should be supported by a defined testing method where required.

No independent IEC test report has been supplied to verify the listed minimum.

Foreign Matter in Coconut Shell Charcoal

IEC Specification: Max 0.5–1%

Foreign matter refers to unwanted material outside the agreed charcoal product definition.

Examples may include non-charcoal contaminants, depending on the agreed inspection criteria.

Why Foreign Matter Matters

Excessive foreign matter may affect:

Material processing
Equipment handling
Product consistency
Quality acceptance

Inspection Requirements

Buyers should define:

What qualifies as foreign matter
Inspection method
Sampling procedure
Measurement basis
Maximum acceptable percentage

The exact maximum must be confirmed for the selected grade.

Dust Content in Coconut Shell Charcoal

IEC Specification: Max 3%

Dust or fines can be important for handling, screening, and industrial processing.

Why Dust Matters

Dust content may influence:

Material handling
Packaging
Product yield
Screening requirements
Workplace dust control

Dust Measurement

The contract should define the particle size threshold used to classify material as dust.

Without an agreed threshold and sieve method, two parties may report different dust percentages for the same material.

Dust Acceptance

Buyers should specify the maximum percentage and the agreed testing procedure.

Coconut Shell Charcoal Particle Size Specifications

IEC’s listed size options include:

Natural Lump

Irregular pieces of carbonized coconut shell.

Buyers should specify preferred size ranges and allowable fines.

Granular

Smaller charcoal particles used in certain processing applications.

3×6 Mesh

A listed screened charcoal size option.

4×8 Mesh

Another listed screened charcoal size option.

Custom Size

Subject to supplier confirmation.

Particle Size Distribution

For mesh products, buyers should confirm:

Sieve standard
Upper and lower particle size limits
Oversize allowance
Undersize allowance
Sampling method
Screening test procedure

Mesh labels alone do not establish the complete particle size distribution.

Proximate Analysis of Coconut Shell Charcoal

Proximate analysis is a common method of evaluating solid carbonaceous materials.

It generally includes:

Moisture
Ash
Volatile matter
Fixed carbon

Example Proximate Analysis Structure

Parameter	Purpose
Moisture	Water content
Ash	Inorganic residue
Volatile Matter	Material released under specified heating conditions
Fixed Carbon	Calculated carbon-rich fraction remaining by difference

Analytical Reporting Basis

Results may be reported on different bases, including:

As-received basis
Dry basis
Dry ash-free basis

Why Reporting Basis Matters

Values reported on different bases are not directly interchangeable.

For example, moisture is excluded from a dry-basis composition, while it is included in an as-received composition.

Buyers should request consistent reporting bases for supplier comparisons.

Coconut Shell Charcoal Laboratory Testing

Laboratory testing can help establish whether a charcoal sample meets agreed specifications.

Tests Buyers May Request

Test	Verification Objective
Moisture Analysis	Confirm moisture limit
Ash Analysis	Confirm inorganic residue
Volatile Matter Analysis	Confirm volatile fraction
Fixed Carbon Calculation	Verify proximate composition
Calorific Value Test	Verify energy content
Foreign Matter Inspection	Check contamination
Dust Measurement	Verify fines percentage
Sieve Analysis	Verify particle size distribution

Testing Standards

Buyers should select methods appropriate to the material and intended application.

Relevant standards may include recognized ASTM, ISO, or other agreed procedures, depending on their applicability.

The exact standard and edition should be confirmed rather than assumed.

Laboratory Competence

Buyers may request testing from a laboratory with relevant technical competence and accreditation for the required methods.

IEC has not supplied a verified list of available laboratories or test reports.

Sampling Procedure for Coconut Shell Charcoal

A laboratory result is only useful if the sample represents the material being evaluated.

Recommended Sampling Stages

Identify the lot or batch.
Define the sampling location.
Determine the number of increments.
Collect representative samples.
Combine or divide samples using an agreed method.
Label and seal the samples.
Record the chain of custody.
Send samples for testing.

Sampling Before Shipment

Buyers may arrange sampling before container loading.

Sampling During Loading

Where agreed, samples may be collected during the loading process.

Retained Samples

Buyers and suppliers may agree to retain sealed reference samples for potential dispute resolution.

Sampling Responsibility

The contract should identify who performs sampling and which procedure applies.

Certificate of Analysis (COA) for Coconut Shell Charcoal

A Certificate of Analysis can summarize measured properties for a particular sample or lot.

Information to Check

Product name
Sample identification
Batch or lot number
Sampling date
Test date
Laboratory identity
Test methods
Reported results
Reporting basis
Applicable specification limits

Example COA Review Table

Parameter	Contract Limit	Laboratory Result	Status
Moisture	[Agreed Maximum]	[Test Result]	[Pass / Fail]
Ash	[Agreed Maximum]	[Test Result]	[Pass / Fail]
Volatile Matter	[Agreed Maximum]	[Test Result]	[Pass / Fail]
Fixed Carbon	[Agreed Minimum]	[Test Result]	[Pass / Fail]
Calorific Value	[Agreed Minimum]	[Test Result]	[Pass / Fail]
Dust	[Agreed Maximum]	[Test Result]	[Pass / Fail]
Foreign Matter	[Agreed Maximum]	[Test Result]	[Pass / Fail]

This is a blank evaluation template, not a verified IEC laboratory report.

Quality Acceptance Criteria for International Buyers

A purchase specification should clearly define what constitutes acceptable charcoal.

Essential Contract Elements

Product Identification

Raw coconut shell charcoal, not finished activated carbon or finished briquettes.

Exact Quality Limits

Specify precise maximum and minimum values.

Test Methods

Identify the agreed analytical methods.

Reporting Basis

Define as-received or dry basis as appropriate.

Sampling Procedure

Agree on how representative samples will be collected.

Inspection Timing

Specify whether testing occurs before loading, during loading, or at another agreed point.

Acceptance and Rejection

Define the procedure for nonconforming results.

Dispute Resolution

Agree on retesting, reference samples, and the responsible laboratory where relevant.

Specifications for Activated Carbon Feedstock

Coconut shell charcoal may be used as raw material for activated carbon manufacturing.

Key Feedstock Parameters

Activated carbon producers may evaluate:

Ash content
Fixed carbon
Volatile matter
Moisture
Particle size
Foreign matter
Feedstock consistency

Important Distinction

Raw coconut shell charcoal is not finished activated carbon.

The supplied IEC specifications do not establish:

Iodine number
BET surface area
Adsorption capacity
Pore size distribution
Activation yield
Finished activated carbon performance

These properties require separate evaluation of the activated product or the relevant production process.

Specifications for Industrial Fuel Applications

Industrial fuel buyers may prioritize:

Calorific value
Moisture
Ash
Volatile matter
Particle size
Handling characteristics

The appropriate specification depends on the buyer’s equipment and process requirements.

Specifications for Briquette Manufacturing

Raw coconut shell charcoal may be used as feedstock for manufacturing BBQ or shisha briquettes.

Important Feedstock Criteria

Fixed carbon
Ash
Moisture
Particle size
Dust
Foreign matter

Finished Briquette Specifications

Finished briquettes require separate testing.

Raw charcoal specifications do not guarantee finished briquette ash, burning duration, mechanical strength, odor, or smoke characteristics.

Packaging and Quality Preservation

IEC’s listed packaging options are:

PP Bags
Woven Bags

Packaging Details to Confirm

Net weight per bag
Bag material
Closure method
Labeling
Lot identification
Loading arrangement

Storage and Handling

Charcoal should be handled in accordance with appropriate fire safety, dust control, and applicable storage requirements.

Charcoal can present self-heating hazards, particularly in bulk transport contexts.

Export Quality Inspection Before Shipment

Before shipment, buyers may request verification of:

Product identity
Packaging
Net and gross weight
Bag count
Lot identification
Laboratory results
Particle size
Visible foreign matter
Loading conditions
Required transport documentation

Inspection scope and responsibility must be agreed upon.

Maritime Transport Safety and Technical Documentation

Charcoal may present self-heating and fire hazards during transportation.

The applicable transport classification, testing, packaging, documentation, and stowage requirements must be verified under the current International Maritime Dangerous Goods (IMDG) Code and carrier rules.

Quality specifications alone do not establish transport classification.

Buyers should request shipment-specific compliance information from the responsible parties.

IEC’s Role in Technical Charcoal Sourcing

Indonesia Export Center operates as a sourcing and export facilitation intermediary.

IEC can receive technical purchasing requirements and facilitate inquiries about potential supply arrangements.

IEC is not automatically the manufacturer, testing laboratory, contractual seller, or exporter of record.

Laboratory reports, product availability, inspection services, and commercial terms must be confirmed with the relevant parties.

How to Request Coconut Shell Charcoal Technical Specifications

Step 1 – Identify Your Application

Specify activated carbon feedstock, industrial fuel, briquette manufacturing, or another intended use.

Step 2 – Select Product Size

Choose natural lump, granular, 3×6 mesh, 4×8 mesh, or custom size.

Step 3 – Define Exact Acceptance Limits

State your required values for:

Moisture
Ash
Volatile matter
Fixed carbon
Calorific value
Foreign matter
Dust

Step 4 – Define Testing Requirements

Specify laboratory methods, reporting basis, sampling, and inspection.

Step 5 – Provide Commercial Requirements

Include quantity, packaging, destination, and preferred Incoterm.

Step 6 – Request Confirmation

Contact IEC to discuss product availability, grade-specific specifications, quality documentation, and quotation terms.

Coconut Shell Charcoal Technical RFQ Template

Subject: RFQ – Coconut Shell Charcoal Technical Specifications

Dear Indonesia Export Center Team,

We are interested in sourcing raw coconut shell charcoal from Indonesia for industrial use.

Please advise whether the following technical and commercial requirements can be supported.

Company Name: [Company Name]

Destination Country: [Country]

Destination Port: [Port]

Intended Application: [Activated Carbon / Industrial Fuel / Briquette Manufacturing / Other]

Product: Raw Coconut Shell Charcoal

Required Size: [Natural Lump / Granular / 3×6 Mesh / 4×8 Mesh / Custom]

Required Quantity: [Metric Tons]

Maximum Moisture: [Specification]

Maximum Ash Content: [Specification]

Maximum Volatile Matter: [Specification]

Minimum Fixed Carbon: [Specification]

Minimum Calorific Value: [Specification]

Maximum Foreign Matter: [Specification]

Maximum Dust: [Specification]

Analytical Reporting Basis: [Specify]

Required Testing Standards: [Specify]

Sampling Requirements: [Specify]

Packaging: [PP Bag / Woven Bag]

Preferred Incoterm: [Specify]

Expected Shipment Date: [Date]

Please provide:

Available product grades
Confirmed technical specifications
Available laboratory test reports
Testing methods
Sampling and inspection options
Minimum order quantity
Wholesale pricing
Packaging details
Estimated production lead time
Export and shipping arrangements

We look forward to receiving your technical and commercial response.

Best regards,
[Your Name] [Company Name] [Contact Information]

Send Your Technical RFQ via WhatsApp:
https://wa.me/628133302277

Frequently Asked Questions About Coconut Shell Charcoal Specifications

What are the main coconut shell charcoal specifications?

Common parameters include moisture, ash, volatile matter, fixed carbon, calorific value, dust, foreign matter, and particle size.

What is the fixed carbon content?

IEC’s supplied specification is minimum 75–80%, with the exact grade-specific minimum to be confirmed.

What is the ash content?

IEC’s supplied specification is maximum 2–3%, with the exact grade-specific maximum to be confirmed.

What is the moisture specification?

Maximum 10%.

What is the volatile matter specification?

Maximum 15%.

What is the calorific value?

The supplied minimum is 7,000 kcal/kg. The testing method and reporting basis should be confirmed.

How is fixed carbon calculated?

It is commonly calculated by difference from moisture, ash, and volatile matter, provided all values are reported on the same basis.

What is the difference between ash and volatile matter?

Ash is inorganic residue measured under an ashing procedure, while volatile matter is material released during a specified heating test, excluding moisture as defined by the method.

What charcoal sizes are available?

The listed options are natural lump, granular, 3×6 mesh, 4×8 mesh, and custom sizes subject to confirmation.

Can I request laboratory reports?

Buyers may request available laboratory documentation. Availability must be confirmed.

Can I request independent inspection?

Buyers may inquire about inspection arrangements. Availability and costs must be confirmed.

Are these specifications for activated carbon?

No. They are raw coconut shell charcoal specifications.

Are these specifications for finished shisha briquettes?

No. Finished briquettes require separate technical specifications and testing.

Does IEC manufacture or test the charcoal?

IEC is presented as a sourcing and export facilitation intermediary, not automatically the manufacturer or laboratory.

How do I request technical specifications and pricing?

Contact IEC through WhatsApp at +62 813-3302-277 with your required grade, quality parameters, quantity, packaging, and destination.

Request Coconut Shell Charcoal Specifications & Quotation

Need coconut shell charcoal with defined technical requirements?

Indonesia Export Center (IEC) welcomes inquiries from industrial quality control teams, procurement engineers, activated carbon manufacturers, charcoal processors, and international importers.

Product: Raw Coconut Shell Charcoal

Raw Material: 100% Coconut Shell

Quality Parameters: Fixed Carbon • Ash • Volatile Matter • Moisture • Calorific Value • Foreign Matter • Dust

Size Options: Natural Lump / Granular / 3×6 Mesh / 4×8 Mesh / Custom

Packaging: PP Bag / Woven Bag

Origin: Indonesia

Business Focus: Export Quality • Custom Size • Bulk Supply • B2B Inquiry

Contact IEC to discuss grade-specific limits, laboratory verification, inspection requirements, packaging, MOQ, and export quotations.

Indonesia Export Center (IEC)

Website: https://indonesiaexportcenter.com/

WhatsApp: +62 813-3302-277

Request Quotation via WhatsApp:
https://wa.me/628133302277

Please include your intended application, required charcoal size, exact technical acceptance limits, quantity, packaging, and destination country.